x-patents:index
| X Number | Date | Inventor | City | Title | Status |
|---|---|---|---|---|---|
| X1 | 1790-07-31 | Samuel Hopkins | Philadelphia, PA | Manufacture of pot ash and pearl ash | Recovered |
| X-2 | 1790-08-06 | Joseph Stacey Sampson | Boston, MA | Manufacturing Candles | Missing |
| X-3 | 1790-12-18 | Oliver Evans | Philadelphia, PA | Manufacturing flour and meal | Missing |
| X-4 | 1791-01-29 | Frances Bailey | Philadelphia, PA | Punches for Type | Recovered |
| X-5 | 1791-01-29 | Aaron Putnam | Medford, Middlesex County, MA | Distilling of liquor | Missing |
| X-6 | 1791-03-10 | John Stone | Concord, Middlesex County, MA | Driving Piles | Missing |
| X-7 | 1791-03-11 | Samuel Mullikin | Philadelphia, PA | Threshing Machine | Missing |
| X-8 | 1791-03-11 | Samuel Mullikin | Philadelphia, PA | Breaking and Swingling of Hemp, etc. | Missing |
| X-9 | 1791-03-11 | Samuel Mullikin | Philadelphia, PA | Machine for cutting and polishing stone and marble | Recovered |
| X-10 | 1791-03-11 | Samuel Mulliken | Philadelphia, PA | Machine for raising a nap on cloths | Missing |
| X-11 | 1791-03-17 | George Parkinson | Philadelphia, PA | Machine for Spinning Hemp and Flax etc. | Missing |
| X-12 | 1791-07-30 | Jonathan Dickerson | Morris County, NJ | Method of working tide mills | Missing |
| X-13 | 1791-08-02 | Samuel Briggs Jr. | Philadelphia, PA | Nail Machine | Missing |
| X-14 | 1791-08-02 | William Thomson | Richmond, VA | Threshing Machine | Missing |
| X-15 | 1791-08-04 | Robert R. Livingston | Clermont County, NY | Diminishing friction of spindles | Missing |
| X-16 | 1791-08-10 | Thomas Beadwell | Philadelphia, PA | Making extract of bark | Missing |
| X-17 | 1791-08-10 | Ludwig Conrad Kuhn | Philadelphia, PA | Bedstead | Missing |
| X-18 | 1791-08-10 | Peter Gordon | Philadelphia, PA | Manufacturing Boots | Missing |
| X-19 | 1791-08-10 | Henry Voight | Philadelphia, PA | Propelling boats by cattle | Missing |
| X-20 | 1791-08-10 | Henry Keyser | Philadelphia, PA | Manufacturing Gun Powder | Missing |
| X-21 | 1791-08-26 | Jason Macomb | Princeton, NJ | Water Wheel | Missing |
| X-22 | 1791-08-26 | James Rumsey | Berkley County, VA | Improvement on Dr Barker's mill | Missing |
| X-23 | 1791-08-26 | James Rumsey | Berkley County, VA | Conveying water to operate on mills | Missing |
| X-24 | 1791-08-26 | Jason Rumsay | Berkley County, VA | Steam Engine Improvement | Missing |
| X-25 | 1791-08-26 | Jason Rumsay | Berkley County, VA | Bellows | Missing |
| X-26 | 1791-08-26 | James Rumsay | Berkley County, VA | Generation of steam | Missing |
| X-27 | 1791-08-26 | James Rumsay | Berkley County, VA | Application of steam to propel boats or vessels | Missing |
| X-28 | 1791-08-26 | John Fitch | Philadelphia, PA | Steam engine applied to navigation | Missing |
| X-29 | 1791-08-26 | Nathan Read | Salem, Essex County, MA | Steam engine boiler | Missing |
| X-30 | 1791-08-26 | Nathan Read | Salem, Essex County, MA | Distilling | Missing |
| X-31 | 1791-08-26 | John Stevens Jr. | Bergen County, NJ | Boiler for generating steam | Missing |
| X-32 | 1791-08-26 | John Stevens Jr. | Bergen County, NJ | Raising water by steam | Missing |
| X-33 | 1791-08-26 | John Stevens Jr. | Bergen County, NJ | Applying the force of steam | Missing |
| X-34 | 1791-08-26 | Englehart Cruse | Baltimore, MD | Improvement on Savary's steam engine for raising water | Missing |
| X-35 | 1791-11-24 | Peter Zacharie | Baltimore, MD | Dock Cleaning Machine | Missing |
| X-36 | 1791-12-30 | William Pollard | Philadelphia, PA | Machine for Spinning Cotton | Missing |
| X-37 | 1792-01-02 | Benjamin Folger | Hudson, Columbia County, NY | Cleaning whale oil | Missing |
| X-38 | 1792-01-28 | Obadiah Herbert | Mount Pleasant County, NJ | Spinning and Twisting Thread | Missing |
| X-39 | 1792-02-23 | John Bailey | Boston, MA | Steam Jack | Missing |
| X-40 | 1792-02-24 | David Hartley | Boston, MA | Hardening and Tempering Steel | Missing |
| X-41 | 1792-03-07 | David Ridgeway | Philadelphia, PA | Making Bricks | Missing |
| X-42 | 1792-03-28 | Samuel Green | New York, NY | Conductor for conveying persons and goods from houses on fire | Missing |
| X-43 | 1792-05-09 | Timothy Kirk | Yorktown, York County, VA | Weaving of wire | Missing |
| X-44 | 1792-05-09 | Thomas Farrington | Boston, MA | Bark and wood sawing | Missing |
| X-45 | 1792-07-10 | George Morris | Philadelphia, PA | Preservation of plants from frost | Missing |
| X-46 | 1792-10-20 | Samuel G. Dorr | Albany, NY | Cloth Shearing Machine | Recovered |
| X-47 | 1792-10-23 | Jonathan Dorr | Washington, Warren County, NJ | Handmill for picking of mill stones | Missing |
| X-48 | 1793-01-26 | James Caldwell | Albany, NY | Tobacco Manufacturing Machine | Missing |
| X-49 | 1793-01-26 | Joseph Pope | Boston, MA | Wind mill | Missing |
| X-50 | 1793-01-26 | Christopher Colles | New York, NY | Brick Machine | Missing |
| X-51 | 1793-01-29 | Samuel Morey | Orford, Grafton County, NH | Improvement in Turning a Spit | Recovered |
| X-52 | 1793-01-30 | Robert Leslie | Philadelphia, PA | Double Pendulum for Ships | Missing |
| X-53 | 1793-01-30 | Robert Leslie | Philadelphia, PA | Clock Pendulum | Missing |
| X-54 | 1793-01-30 | Robert Leslie | Philadelphia, PA | Double Pendulum | Missing |
| X-55 | 1793-02-01 | Ralph Hodgson | New York, NY | Manufacturing oiled silk and linen | Missing |
| X-56 | 1793-02-01 | Apollos Kingsley | New York, NY | Brick Machine | Missing |
| X-57 | 1793-02-02 | Robert Leslie | Philadelphia, PA | Construction and tone of bells | Missing |
| X-58 | 1793-02-28 | Richard Rosewell Saltonstall | New London, CT | Manufacturing rhus or sumach | Missing |
| X-59 | 1793-03-13 | Jonathan Williams Jr. | Philadelphia, PA | Moulds for claying sugar | Missing |
| X-60 | 1793-04-11 | John Carnes Jr. | Unknown, DE | Paper moulds | Missing |
| X-61 | 1793-04-29 | Edward Ryan | Philadelphia, PA | Furnace for pot and pearl ashes | Recovered |
| X-62 | 1793-05-01 | Richard Rosewell Saltonstall | New London, CT | Manufacturing rhus or sumach | Missing |
| X-63 | 1793-06-11 | Robert Heterick | Unknown, PA | Stove of cast iron | Missing |
| X-64 | 1793-07-05 | Joseph Stacey Sampson | Boston, MA | Applying and regulating the sails of ships and boats | Missing |
| X-65 | 1793-08-17 | Samuel Brower | New York, NY | Manufacture of bricks and pantiles | Missing |
| X-66 | 1793-12-02 | Abijah Babcock | New York, NY | Machines for propelling boats, vessels and carriages | Missing |
| X-67 | 1793-12-31 | John Clarke (Clark) | New York, NY | Machine to work in a current of water or other fluid | Missing |
| X-68 | 1794-02-07 | Thomas Perkins | Philadelphia, PA | Nail Manufacturing | Missing |
| X-69 | 1794-02-14 | James Davenport | Unknown, NJ | Weaving and beating duck sail | Missing |
| X-70 | 1794-03-04 | Joseph Simpson | Richmond, VA | Distilling spiritous liquor | Missing |
| X-71 | 1794-03-14 | Zachariah Cox | Unknown, GA | Round Saw | Missing |
| X-72 | 1794-03-14 | Eli Whitney | New Haven, CT | Ginning cotton | Recovered |
| X-73 | 1794-03-23 | Benjamin Taylor | New York, NY | To stop the progress of fire | Missing |
| X-74 | 1794-03-23 | Josiah O. Peerson | New York, NY | Machine for Cutting Nails | Recovered |
| X-75 | 1794-03-31 | John Biddis | Unknown, PA | Manufacturing paper | Missing |
| X-76 | 1794-04-12 | Richard Robotham | Unknown, VT | Manufacturing of Mortar for Flooring Houses, etc. | Missing |
| X-77 | 1794-04-25 | John J. Staples Jr. | New York, NY | Carriages to be Propelled by Mechanic Powers | Missing |
| X-78 | 1794-04-28 | William Hodgson | Unknown, VA | Threshing Machine | Missing |
| X-79 | 1794-05-19 | James Drake | Unknown, NJ | Improvement in Bellows | Missing |
| X-80 | 1794-06-02 | Richard Robotham | New York, NY | Manufacturing of Candles | Missing |
| X-81 | 1794-06-16 | George Parkinson | Unknown, PA | Manufacturing cordage | Missing |
| X-82 | 1794-07-19 | John Markley | Unknown, PA | Grinding bark | Missing |
| X-83 | 1794-07-29 | Elisha Rigg | Unknown, PA | Water working pumps | Missing |
| X-84 | 1794-09-02 | Alexander Anderson | Unknown, PA | Steam still | Missing |
| X-85 | 1794-09-13 | Benjamin Wynkoop | Philadelphia, PA | Propelling vessels | Missing |
| X-86 | 1794-09-24 | James Fennel | Unknown, PA | Making salt from sea water | Missing |
| X-87 | 1794-10-29 | Joshua Hatheway | Unknown, VT | Hydraulics | Missing |
| X-88 | 1794-11-05 | James Wardrop | Ampthill, Cumberland County, VA | Thrashing Machine | Missing |
| X-89 | 1794-11-25 | John Kincaid | Unknown, PA | Still | Missing |
| X-90 | 1794-12-20 | Apollos Kingsley | N/A | Brick Manufacturing | Missing |
| X-91 | 1795-01-15 | Samuel Mullikin | Philadelphia, PA | Hemp and flax breaking | Missing |
| X-92 | 1795-01-16 | Jacob Perkins | Boston, MA | Nail Machine | Missing |
| X-93 | 1795-01-31 | Samuel Kellogg | Unknown, VT | Shearing woolen and other cloths | Recovered |
| X-94 | 1795-03-25 | Joseph Ellicott | Unknown, PA | New mode of catching fish | Missing |
| X-95 | 1795-03-25 | Samuel Morey | Orford, Grafton County, NH | Improvement in Applying Steam | Missing |
| X-96 | 1795-05-25 | John Youle | New York, NY | Construction of a caboose | Missing |
| X-97 | 1795-05-25 | John Pittman | Unknown, RI | Manufacturing of cordage | Missing |
| X-98 | 1795-05-25 | Daniel Keller | Unknown, PA | Propelling boats | Missing |
| X-99 | 1795-06-19 | William Peter Sprague | Unknown, PA | Propelling boats and vessels with horses | Missing |
| X-100 | 1795-06-19 | Benjamin Wynkoop | Philadelphia, PA | Nautical Ventilators | Missing |
| X-101 | 1795-06-30 | John Taylor | Unknown, VA | Worm still of Tinned Sheet Copper | Missing |
| X-102 | 1796-01-09 | Jonathan Dickerson | Unknown, NJ | Sawing and Polishing of Stones | Missing |
| X-103 | 1796-01-15 | Jared Byington | Unknown, CT | Manufacturing Nails | Missing |
| X-104 | 1796-02-13 | Jonathan Roberts Jr. | Unknown, PA | Cleaning clover and other seed | Missing |
| X-105 | 1796-02-16 | James Eaton | Unknown, MA | Manufacturing of Seal Skins | Recovered |
| X-106 | 1796-02-19 | Elisha Perkins | Plainfield, Windham County, CT | Metallic points to remove pains, etc. | Missing |
| X-107 | 1796-04-11 | Samuel Morey | Orford, Grafton County, NH | Raising Water by Wind | Missing |
| X-108 | 1796-04-15 | James Davis | Unknown, MA | Leather tanning | Missing |
| X-109 | 1796-04-15 | Benjamin Tyler | West Clarmont, Sullivan County, NH | Machine for Cleaning Wheat, etc. | Missing |
| X-110 | 1796-04-20 | Thomas Bedwell | Philadelphia, PA | Improved mode of forming a yellow color | Missing |
| X-111 | 1796-04-30 | Samuel Lee Jr. | Unknown, CT | Composition of bilious pills | Missing |
| X-112 | 1796-05-04 | Peter Zacharie | N/A | Nail Machine | Missing |
| X-113 | 1796-05-12 | Joseph Hillard | Unknown, CT | Improvement in manufacturing sumach | Missing |
| X-114 | 1796-05-12 | Robert Dawson | Unknown, DE | Bolting cloths | Missing |
| X-115 | 1796-05-12 | Holmes Hodgen | Unknown, GA | Cotton gin | Missing |
| X-116 | 1796-05-27 | James Sylvanus McLean | Unknown, NJ | Piano forte | Missing |
| X-117 | 1796-05-28 | Oliver Evans | Philadelphia, PA | Improvment in Burr Mill Stones | Missing |
| X-118 | 1796-05-31 | Elijah Backus | Unknown, VA | Steam engine and boiler | Missing |
| X-119 | 1796-07-01 | Lunden McKechnie | Unknown, PA | Stays for removing incurvitures or distortions of spine | Missing |
| X-120 | 1796-07-02 | Joseph Francis Mangin | Unknown, NY | Sawing and Polishing Marble and other Stones | Missing |
| X-121 | 1796-10-17 | Robert Grant | unknown, SC | Machine for Scouring Rice and Other Grain | Missing |
| X-122 | 1796-11-16 | George James | Unknown, TN | Making salt | Missing |
| X-123 | 1796-11-16 | Edward Ryan | Unknown, VT | Manufacturing pot ash | Missing |
| X-124 | 1796-11-16 | John Fowler | Unknown, PA | Improvement in concentrating the volatile parts of calcareous earth, stones, etc. | Missing |
| X-125 | 1796-11-16 | Peter Cliff | Unknown, MA | Manufacturing Cut Nails | Missing |
| X-126 | 1796-11-16 | Isaac Garretson | Unknown, PA | Machine for Heading and Cutting Nails | Missing |
| X-127 | 1796-11-16 | Apollos Kinsley | Unknown, CT | Printing Press | Missing |
| X-128 | 1796-11-16 | James Stansfield | Unknown, VA | Splitting Sheep Skins | Missing |
| X-129 | 1796-11-16 | Mark Isambard Brunel | Constantia, Oswego County, NY | Ruling Books and Paper | Missing |
| X-130 | 1796-11-16 | Theobald Bourke | Unknown, PA | Pumps | Missing |
| X-131 | 1796-11-17 | William Frobisher | Unknown, MA | Manufacturing pot ash | Missing |
| X-132 | 1796-11-17 | Clement Rentgen | Unknown, PA | Forging Bolts and Round Iron | Missing |
| X-133 | 1796-11-17 | Amos Whitmore | Unknown, MA | Loom for Weaving Cloth | Missing |
| X-134 | 1796-11-19 | Amos Whitmore | Unknown, MA | Preambulator for Measuring a Ship's Way | Missing |
| X-135 | 1796-11-19 | Amos Whittemore | West Cambridge, Middlesex County, MA | Nail Machine | Missing |
| X-136 | 1796-11-19 | John Bigelow | Unknown, CT | Manufacturing Nails | Missing |
| X-137 | 1796-12-12 | George Chandler | unknown, MD | Cutting and Heading Nails | Missing |
| X-138 | 1796-12-23 | Thomas Pasamore | Philadelphia, PA | Machine for cooking and boiling, called a conjurer | Missing |
| X-139 | 1796-12-23 | Daniel French | Unknown, CT | Manufacturing Cut Nails | Missing |
| X-140 | 1796-12-23 | Daniel French | Unknown, CT | Manufacturing Wrought Nails | Missing |
| X-141 | 1796-12-23 | Jared Byington | Unknown, CT | Heading Nails | Missing |
| X-142 | 1796-12-23 | Jason Frost | Unknown, CT | Heading Nails | Missing |
| X-143 | 1796-12-23 | James Deller | Unknown, PA | Separating Scoured Rice | Missing |
| X-144 | 1796-12-23 | Robert Watkins | Unknown, GA | Ginning Cotton | Missing |
| X-145 | 1796-12-23 | John Murray | Unknown, GA | Ginning Cotton | Missing |
| X-146 | 1797-01-06 | John Nazro | Worcester, MA | Making soap | Missing |
| X-147 | 1797-01-06 | John Nazro | Unknown, MA | Extracting alkali from marine salt and kelp | Missing |
| X-148 | 1797-01-21 | Charles Willson Peale | Philadelphia, PA | Bridges | Missing |
| X-149 | 1797-02-16 | James Spence | Unknown, NY | Cutting and Heading Nails | Missing |
| X-150 | 1797-02-16 | Joseph Francis Mangin | Unknown, NY | Cutting and Polsihing Marble | Missing |
| X-151 | 1797-02-20 | James McCallmont | New Castle, Delaware County, DE | Stoves | Missing |
| X-152 | 1797-02-20 | Samuel Mullikin | Philadelphia, PA | Scouring or Skinning Rice | Missing |
| X-153 | 1797-02-24 | Richardson Stuart | unknown, MD | Chimneys | Missing |
| X-154 | 1797-02-24 | John Fowler | Unknown, PA | Bridges | Missing |
| X-155 | 1797-02-24 | Jesse Kersey | Unknown, PA | Heading and Cutting Nails | Missing |
| X-156 | 1797-02-24 | Lawrence Allwine | Unknown, PA | Improvement in mixing colours and painting | Missing |
| X-157 | 1797-03-11 | Thomas Hirsh | Unknown, PA | Stoves | Missing |
| X-158 | 1797-03-11 | William Booker | Unknown, VA | Machine for Thrashing Wheat, etc. | Missing |
| X-159 | 1797-03-18 | Silas Betts | N/A | Tide Water Wheel | Missing |
| X-160 | 1797-03-28 | Nathaniel Briggs | Unknown, NH | Washing cloths | Missing |
| X-161 | 1797-03-29 | Caleb Wheaton | Unknown, MA | Stoves | Missing |
| X-162 | 1797-04-13 | Jesse Kersey | Unknown, PA | Fire engines | Missing |
| X-163 | 1797-04-13 | Caleb Leach | Unknown, MA | Boring pumps | Missing |
| X-164 | 1797-04-17 | Fitch Hall | Unknown, NY | Combination of astringent woods and vegetables in distilling | Missing |
| X-165 | 1797-04-28 | Jehosaphat Starr | Middletown, Middlesex County, CT | Propelling Boats and Vessels | Missing |
| X-166 | 1797-04-29 | William Faris | Annapolis, Anne Arundel County, MD | Propelling Carriages | Missing |
| X-167 | 1797-05-03 | Benjamin Duval | Unknown, VA | Antibilious pills | Missing |
| X-168 | 1797-05-29 | Isaac Garretson | Unknown, PA | Constructing and Rigging Vessels | Recovered |
| X-169 | 1797-06-03 | John Stickney | Unknown, MA | Bridges | Missing |
| X-170 | 1797-06-05 | Amos Whittemore | West Cambridge, Middlesex County, MA | Machine for the Manufacture of Sheet Cards | Recovered |
| X-171 | 1797-06-08 | David Grieve | Unknown, MA | Looms | Missing |
| X-172 | 1797-06-23 | William Burt | Unknown, Unknown | Raising a nap on cloth | Missing |
| X-173 | 1797-06-26 | Benjamin Seymour | Unknown, Unknown | Mill Rollers for Slitting and Other Mills | Missing |
| X-174 | 1797-06-26 | Benjamin Seymour | Unknown, Unknown | Staightening Hoops of Iron | Missing |
| X-175 | 1797-06-26 | Benjamin Wynkoop | Unknown, Unknown | Bellows Pump | Missing |
| X-176 | 1797-06-26 | Joseph Stacey Sampson | Boston, MA | Making Candles | Missing |
| X-177 | 1797-06-26 | Charles Newbold | Burlington County, NJ | Plow | Recovered |
| X-178 | 1797-06-28 | Thomas Bruff Sr. | unknown, MD | Extracting teeth | Recovered |
| X-179 | 1797-06-30 | Moses Johnson | Unknown, NH | Mode of preserving butter | Missing |
| X-180 | 1797-07-08 | Bill Jarvis | Unknown, NY | Making shingles and boards | Missing |
| X-181 | 1797-07-11 | John Hawkins | N/A | Brick Machine | Missing |
| X-182 | 1797-08-12 | Apollos Kinsley | Unknown, CT | Cutting tobacco | Missing |
| X-183 | 1797-08-12 | Jonathan Nevill | N/A | Nail Machine | Missing |
| X-184 | 1797-08-18 | Henry Dulhuer | unknown, SC | Saw mills | Missing |
| X-185 | 1797-08-24 | Jonathan W. Curtiss | Unknown, Unknown | Mills | Missing |
| X-186 | 1797-11-16 | Charles Willson Peale | Philadelphia, PA | Fire place | Missing |
| X-187 | 1797-11-16 | Thomas Stickney | Unknown, MA | Saddles | Missing |
| X-188 | 1797-11-16 | Daniel Pettibone | Unknown, NY | Improvement in breaking dough and paste | Missing |
| X-189 | 1797-11-16 | Richard R. Eliot | N/A | Grain Thresher | Missing |
| X-190 | 1797-11-17 | Eli Terry | Unknown, Unknown | Clocks, Time Keepers, and Watches | Missing |
| X-191 | 1797-11-20 | Stephen Parsons | Unknown, MA | Making window sashes | Missing |
| X-192 | 1797-11-21 | John Martin | Unknown, NY | Machines for propelling boats, etc. | Missing |
| X-193 | 1797-12-10 | Elias Ring | N/A | Tide Water Wheel | Missing |
| X-194 | 1797-12-10 | William Payne | Unknown, Unknown | Soap stone stove | Missing |
| X-195 | 1797-12-17 | Timothy Palmer | Newburyport, MA | Bridges | Missing |
| X-196 | 1797-12-19 | Lester Fling | Unknown, Unknown | Making Nails | Missing |
| X-197 | 1798-01-08 | Nathan Read | Unknown, Unknown | Nail Machine | Missing |
| X-198 | 1798-01-08 | Thomas Bruff Sr. | N/A | Coffee grinding | Recovered |
| X-199 | 1798-01-24 | John Dixey | N/A | Printing Machine | Missing |
| X-200 | 1798-02-22 | Isaac Tryon | Unknown, CT | Cutting and pointing comb teeth | Missing |
| X-201 | 1798-03-15 | Charles Holden | Unknown, VT | Wind mills | Missing |
| X-202 | 1798-03-21 | Elijah Ormsbee | N/A | Screw Engine | Missing |
| X-203 | 1798-03-22 | Samuel Blydenburg | New York, NY | Candle Machine | Missing |
| X-204 | 1798-03-24 | Robert McKean | Bordentown, NJ | Steam saw mill | Missing |
| X-205 | 1798-03-30 | Aaron Clarke | Unknown, NY | Mill for sawing boards | Missing |
| X-206 | 1798-04-10 | John Manning | Unknown, NH | Raising water from fountains | Missing |
| X-207 | 1798-04-27 | John Martin | N/A | Tide Wheel | Missing |
| X-208 | 1798-04-27 | Mark J. Brunel | N/A | Raising Water | Missing |
| X-209 | 1798-05-18 | Isaac Lazell | Unknown, Unknown | Machine for Removing Rocks, etc. | Missing |
| X-210 | 1798-05-31 | James Smallman | N/A | Double Steam Engine | Missing |
| X-211 | 1798-06-02 | Thomas C. Martin | N/A | Threshing Machine | Missing |
| X-212 | 1798-06-02 | Charles Stondinger | N/A | Propelling Machine | Missing |
| X-213 | 1798-06-06 | Samuel Cooley | Unknown, CT | Composition for pills | Missing |
| X-214 | 1798-06-07 | Walter Brewster | Unknown, CT | Water wheel flume for large streams | Missing |
| X-215 | 1798-06-07 | Jonathan Hunt | N/A | Pump | Missing |
| X-216 | 1798-06-11 | John Love | unknown, SC | Tallow lamp | Missing |
| X-217 | 1798-07-14 | John W. Godfrey | Unknown, Unknown | Stoves | Missing |
| X-218 | 1798-12-14 | Raphaelle Peale | Newbury, Essex County, MA | Preserving wood wharves, vessels etc. from worms | Missing |
| X-219 | 1798-12-14 | William Banks | Unknown, CT | Improvement in making bread | Missing |
| X-220 | 1798-12-14 | David Wilkinson | Unknown, Unknown | Screw Cutting | Recovered |
| X-221 | 1798-12-14 | Cyrus Austin | Unknown, NJ | Paper manufacture | Missing |
| X-222 | 1798-12-14 | Mark Reeve | N/A | Pump | Missing |
| X-223 | 1798-12-14 | Stephen Colver | Unknown, CT | Machine for cleaning docks and harbors | Missing |
| X-224 | 1798-12-14 | Stephen Colver | Unknown, CT | Machine for heaving down vessels, raising weights, etc. | Missing |
| X-225 | 1799-01-03 | Thomas Thompson | N/A | Wind Mill | Missing |
| X-226 | 1799-01-04 | Seth Hart | N/A | Nail Manufacturing | Missing |
| X-227 | 1799-01-10 | Joseph Huntley | N/A | Water Elevator | Missing |
| X-228 | 1799-01-17 | Mark Isambard Brunel | Constantia, Oswego County, NY | Writing Machine | Missing |
| X-229 | 1799-01-24 | John Sears | Unknown, MA | Machine for manufacturing salt | Missing |
| X-230 | 1799-01-24 | Henry Abbott | Unknown, PA | Coal stoves | Missing |
| X-231 | 1799-01-25 | Eliakim Spooner | N/A | Cultivator | Missing |
| X-232 | 1799-01-25 | Eliakim Spooner | N/A | Corn Planter | Missing |
| X-233 | 1799-02-14 | Ezekiel Reed | Unknown, Unknown | Water Wheel | Missing |
| X-234 | 1799-02-14 | Benjamin Dearborn | Unknown, MA | Steelyards | Recovered |
| X-235 | 1799-02-14 | Benjamin Duval | N/A | Glass Cutter | Missing |
| X-236 | 1799-02-14 | Jacob Perkins | Boston, MA | Nail Manufacturing | Missing |
| X-237 | 1799-02-14 | Benjamin Tyler | N/A | Flax Mill | Missing |
| X-238 | 1799-02-26 | William Hancock | Unknown, Unknown | Casting iron | Missing |
| X-239 | 1799-03-02 | Charles Whiting | Unknown, MA | Extracting oil from cotton seeds | Missing |
| X-240 | 1799-03-16 | John Shotwell | N/A | Axe Sharpener | Missing |
| X-241 | 1799-03-19 | Jacob Perkins | Boston, MA | Check to detect counterfeits | Missing |
| X-242 | 1799-03-21 | Josiah Shackford | Unknown, NY | Propelling boats | Missing |
| X-243 | 1799-03-27 | Isaac Sanford | Unknown, CT | Machine for dressing cloth | Missing |
| X-244 | 1799-03-27 | Samuel Morey | N/A | Steam Engine | Missing |
| X-245 | 1799-04-12 | Phineas Pratt | Essex, CT | Machine for making ivory combs | Missing |
| X-246 | 1799-04-24 | Samuel Morey | Orford, Grafton County, NH | Steam Engine | Recovered |
| X-247 | 1799-04-30 | Benjamin Dearborn | N/A | Water Mill | Recovered |
| X-248 | 1799-05-08 | Andrew W. Duty | Unknown, Unknown | New Method to Cut Clay for Tile | Missing |
| X-249 | 1799-05-17 | William Faris | Annapolis, Anne Arundel County, MD | Machine for raising water | Missing |
| X-250 | 1799-05-27 | Chester Gould | Philadelphia, PA | Machine to keep ship's distance at sea (reckoning) | Missing |
| X-251 | 1799-06-26 | Michael Wigglesworth | Newburyport, MA | Making Ropes | Missing |
| X-252 | 1799-06-26 | Samuel H. P. Lee | Unknown, CT | Bilious pills | Missing |
| X-253 | 1799-06-26 | Ezra Weld | Unknown, MA | Washing cloth | Missing |
| X-254 | 1799-08-05 | James Long | Unknown, Unknown | Napping Hats | Missing |
| X-255 | 1799-08-14 | Richard Robotham | Unknown, NY | Purifying spermaceti oil | Missing |
| X-256 | 1799-08-30 | Samuel Eli Hamlin | N/A | Fire Engine | Missing |
| X-257 | 1799-10-28 | Moses McFarland | Unknown, MA | Federal balloon | Missing |
| X-258 | 1799-10-28 | Apollos Kinsley | N/A | Pump | Missing |
| X-259 | 1799-10-28 | Robert R. Livingston | Unknown, NY | Manufacturing of paper | Missing |
| X-260 | 1799-11-05 | Daniel Keller | Unknown, PA | Boat for descending rapid streams | Missing |
| X-261 | 1799-11-29 | John Stickney | N/A | Pump | Missing |
| X-262 | 1799-12-02 | Thomas Payne | Unknown, NY | Saw mill | Missing |
| X-263 | 1799-12-14 | John Hawks | Unknown, CT | Hawks' pills | Missing |
| X-264 | 1799-12-14 | Abijah Wilder | Unknown, Unknown | Runners and Bows for Sleighs and Sledges | Missing |
| X-265 | 1799-12-16 | Hairland Chase | Unknown, Unknown | Mills | Missing |
| X-266 | 1799-12-24 | John Pittman | Unknown, Unknown | Effeminate Ropery for Spinning Rope Yarn | Missing |
| X-267 | 1800-01-16 | Oliver Evans | Philadelphia, PA | Stoves and grates | Missing |
| X-268 | 1800-02-04 | Stephen Gorham | Unknown, Unknown | Machine for spinning rope, yarn and twine | Missing |
| X-269 | 1800-02-04 | Silas Constant | Unknown, Unknown | Composition to preserve wood, brick, etc. | Missing |
| X-270 | 1800-02-04 | John G. Gebhard | Unknown, NY | Extracting oil from palma christi | Missing |
| X-271 | 1800-02-07 | Benjamin Bolitho | Unknown, Unknown | Machine for pounding rice, gunpowder, etc. | Missing |
| X-272 | 1800-02-07 | William Shotwell | Unknown, Unknown | Metal Boxes for Wood or Iron to TurnI In | Missing |
| X-273 | 1800-02-12 | John J. Hawkins | Philadelphia, PA | Piano forte | Missing |
| X-274 | 1800-02-12 | Hattil Killey II | Unknown, Unknown | Method of covering salt vats from the weather | Missing |
| X-275 | 1800-02-12 | Patrick Lyon | N/A | Engine Pump | Missing |
| X-276 | 1800-02-12 | Nathaniel Ladd | Unknown, Unknown | Extracting Essence of Sumack, Fera, etc for Tanning | Missing |
| X-277 | 1800-02-20 | James Cox | Unknown, Unknown | Raising or Lifting Hides in Tanning | Missing |
| X-278 | 1800-02-20 | Benjamin Tyler | N/A | Grist Mill | Missing |
| X-279 | 1800-03-03 | John Percy | Unknown, Unknown | Improvement in dying blue | Missing |
| X-280 | 1800-03-15 | William Harris | Unknown, Unknown | Loom | Missing |
| X-281 | 1800-04-07 | Comfort Hoyt Jr. | Unknown, CT | Manufacturing sumach | Missing |
| X-282 | 1800-04-10 | William Hottensteen | Unknown, Unknown | Coach Collars | Missing |
| X-283 | 1800-04-10 | Peter Walker | Unknown, Unknown | Stop Cock | Missing |
| X-284 | 1800-04-10 | Dean Howard | Unknown, Unknown | Manufacturing of Boots and Shoes | Missing |
| X-285 | 1800-05-06 | Silas Stone | Unknown, MA | Elastic truss for ruptures | Missing |
| X-286 | 1800-05-06 | John Biddis | Unknown, PA | Engine for reducing silk, cotton, worsted | Missing |
| X-287 | 1800-05-08 | S. Jocelin | Unknown, Unknown | Time Keeper | Missing |
| X-288 | 1800-05-14 | Jeremiah Brown | Unknown, Unknown | Construction of Ships and Vessels | Missing |
| X-289 | 1800-05-15 | George Hadfield | N/A | Brick Machine | Missing |
| X-290 | 1800-05-19 | Edward West | unknown, KY | Metal amulets | Missing |
| X-291 | 1800-05-19 | Thomas O. Harrison | Unknown, Unknown | Machine for Splitting Hides and Skins | Missing |
| X-292 | 1800-05-19 | Robert Smith | Unknown, PA | Mould board plow | Missing |
| X-293 | 1800-05-24 | William Shotwell | Unknown, NJ | Cog | Missing |
| X-294 | 1800-06-28 | Peter Lorillard | N/A | Tobacco Machine | Missing |
| X-295 | 1800-07-10 | James Deneale Jr. | Unknown, VA | Drier grain | Missing |
| X-296 | 1800-08-04 | Peter Lossing | Unknown, NY | Improvement in burning lime | Missing |
| X-297 | 1800-08-22 | H. Butler | N/A | Cooking Machine | Missing |
| X-298 | 1800-08-23 | Frederick Young | N/A | Nail Machine | Missing |
| X-299 | 1800-08-23 | Jonathan Kilborn | Unknown, CT | Bark mill | Missing |
| X-300 | 1800-08-25 | David Cooly Jr. | Unknown, NY | Chimneys | Missing |
| X-301 | 1800-09-17 | Ezra Weld | Unknown, Unknown | Clothes Washer | Missing |
| X-302 | 1800-10-24 | Richard Mansfield | N/A | Brick Machine | Missing |
| X-303 | 1800-10-24 | Aaron Brookfield | N/A | Water Elevator | Missing |
| X-304 | 1800-10-24 | John J. Hawkins | Philadelphia, PA | Musical instruments | Missing |
| X-305 | 1800-10-24 | Jonathan Grout Jr. | Belchertown, Hampshire County, MA | Telegraph | Missing |
| X-306 | 1800-11-17 | Samuel Morey | Orford, Grafton County, NH | Steam Engine | Recovered |
| X-307 | 1800-11-20 | William Young | Windham, Windham County, CT | Hanging windows without weights | Missing |
| X-308 | 1801-01-17 | John Canon | Wilmington, DE | Machine for breaking flax | Missing |
| X-309 | 1801-01-17 | Jesse Wheaton | Dedham, Norfolk County, MA | Jaundice bitters | Missing |
| X-310 | 1801-01-22 | Ebenezer Whiting | Berkshire, Berkshire County, MA | Cotton gin | Missing |
| X-311 | 1801-01-26 | Henry Guest | New Brunswick, Middlesex County, NJ | Sheathing vessels | Missing |
| X-312 | 1801-01-26 | Alexander Anderson | Philadelphia, PA | Brewing with Indian corn | Missing |
| X-313 | 1801-01-26 | Alexander Anderson | Philadelphia, PA | Condensor for heating wash in distilling | Missing |
| X-314 | 1801-01-29 | James Sharples | Unknown, Unknown | Giving motion to wheels within cylinders | Missing |
| X-315 | 1801-02-12 | William Henderson | Middletown, Middlesex County, CT | Construction of stoves | Missing |
| X-316 | 1801-02-12 | Thomas Bedwell | Philadelphia, PA | Evaporating Machine | Missing |
| X-317 | 1801-02-20 | Michael Garber | Lancaster County, PA | Nail Machine | Missing |
| X-318 | 1801-02-20 | Barnabas Langdon | St Albans, Franklin County, VT | Hydraulic Elevator | Missing |
| X-319 | 1801-02-20 | David Grieve | Unknown, MA | Boats to ascend rivers | Missing |
| X-320 | 1801-03-02 | Benjamin Henfrey | Lancaster County, PA | Mode of increasing evaporation for the purpose of distilling | Missing |
| X-321 | 1801-03-16 | Richard Weems | Annapolis, MD | Boring machine for posts | Missing |
| X-322 | 1801-03-16 | William Stillman | Unknown, RI | Veneering plough, for cabinet work | Recovered |
| X-323 | 1801-03-24 | John Strong | Unknown, Unknown | Hydraulic Engine | Missing |
| X-324 | 1801-03-24 | Israel Hatch | N/A | Shot Making | Missing |
| X-325 | 1801-05-01 | Nathan Kent | New York, NY | Nail Making | Missing |
| X-326 | 1801-05-01 | David Ellicot | Anne Arundel County, MD | Screw and reel stove grain drying machine | Missing |
| X-327 | 1801-06-09 | Solomon Thayer | Unknown, Unknown | Pump | Missing |
| X-328 | 1801-06-09 | Jesse Reed | N/A | Nail Making | Missing |
| X-329 | 1801-06-12 | Samuel Downing | Trenton, NJ | Extract of bark for dying | Missing |
| X-330 | 1801-06-13 | John Eveleth | Providence, RI | Pump | Missing |
| X-331 | 1801-07-16 | Charles Willson Peale | Philadelphia, PA | Portable vapor bath | Missing |
| X-332 | 1801-07-16 | Henry Guest | New Brunswick, Middlesex County, NJ | Mode of Infusing Oil into Leather | Missing |
| X-333 | 1801-07-17 | Jeremiah Ladd | Charlestown, Sullivan County, NH | Beaming Machine | Missing |
| X-334 | 1801-07-23 | Caleb Green | East Greenwich, Kent County, RI | Mill for Grinding Painters' Colors etc. | Missing |
| X-335 | 1801-08-20 | Christopher Hoxie | Hudson, Columbia County, NY | Thresher | Missing |
| X-336 | 1801-08-21 | Gurdon F. Saltonstall | Fayetteville, Cumberland County, NC | Cooling and conveying up meal, etc. | Missing |
| X-337 | 1801-08-25 | William Palmer | New York, NY | Water Elevator | Missing |
| X-338 | 1801-09-02 | Gurdon F. Saltonstall | Fayetteville, Cumberland County, NC | Metallic Gin Rollers for Cleaning Cotton | Missing |
| X-339 | 1801-09-14 | Thomas Bruff | Washington, DC | Mode of manufacturing spoons | Missing |
| X-340 | 1801-09-15 | James Sharples | N/A | Wind Mill | Missing |
| X-341 | 1801-09-15 | James Sharples | Unknown, NY | Giving motion to wheels within cylinders | Missing |
| X-342 | 1801-09-19 | Thomas Power | Unknown, NY | Manufacturing potash | Missing |
| X-343 | 1801-09-21 | Samuel Wallis | Boston, MA | Scales | Missing |
| X-344 | 1801-10-10 | Richard Robotham | N/A | Air Pump | Missing |
| X-345 | 1801-10-10 | Richard Robotham | Unknown, Unknown | Machine for Ruling Paper, etc. | Missing |
| X-346 | 1801-10-13 | John Poole | N/A | Steam Syphon | Missing |
| X-347 | 1801-10-28 | Michael Krafft | Philadelphia, PA | Construction of stills | Missing |
| X-348 | 1801-11-05 | William Leslie | N/A | Nail Machine | Missing |
| X-349 | 1801-12-16 | John A. Morton | N/A | Wind Mill | Missing |
| X-350 | 1801-12-22 | George Clymer | Philadelphia, PA | Ship's Pump | Missing |
| X-351 | 1801-12-28 | Joseph Condit Jr. | Newark, Essex County, NJ | Making paper from Currier's shavings | Missing |
| X-352 | 1802-01-08 | Joseph Hutton | Albany, NY | Improvement in the art of engraving | Missing |
| X-353 | 1802-01-20 | Rufus Hathaway | Plymouth, Plymouth County, MA | Wind mill | Missing |
| X-354 | 1802-02-08 | Simon Willard | Unknown, Unknown | Time Piece | Missing |
| X-355 | 1802-02-20 | Isaac Baker | Amherst, Hampshire County, MA | Machine for churning | Missing |
| X-356 | 1802-02-23 | Thomas B. Whitlock | Mount Pleasant, Burlington County, NJ | Boxes for Carriages | Missing |
| X-357 | 1802-02-23 | Richard Claiborne | Monongalia County, VA | Paddles for propelling boats | Missing |
| X-358 | 1802-03-11 | Nathaniel Robbins | Burlington, Burlington County, NJ | Improved mode of carrying fish in warm weather | Missing |
| X-359 | 1802-03-17 | Isaac Warrell | Unknown, PA | Machine for cutting and grinding bark | Missing |
| X-360 | 1802-03-22 | John Biddis | Philadelphia, PA | Manufacturing starch from potatoes | Missing |
| X-361 | 1802-03-27 | George W. Holley | Unknown, CT | Grist Mill | Missing |
| X-362 | 1802-04-01 | Moses Coates | Washington County, PA | Turning the log in saw mills | Missing |
| X-363 | 1802-04-01 | Ebenezer Whiting | Worcester, MA | Block making gang lathe | Missing |
| X-364 | 1802-04-07 | William Bell | N/A | Cotton Gin | Missing |
| X-365 | 1802-04-10 | Joel Pierce | Unknown, Unknown | Machine for churning | Missing |
| X-366 | 1802-04-16 | Benjamin Henfrey | Unknown | Improvement being a cheap mode of obtaining light from fuel | Missing |
| X-367 | 1802-04-19 | Samuel Downing | Trenton, NJ | Extracting essence of bark for dying | Missing |
| X-368 | 1802-04-22 | Asher Spicer | Kent, Litchfield County, CT | Machine for cleaning clover seeds | Missing |
| X-369 | 1802-04-28 | Levi Richardson | Middleton, MA | Saw mill | Missing |
| X-370 | 1802-05-04 | Henry Abbott | Philadelphia, PA | Rolling Iron Round, etc. | Missing |
| X-371 | 1802-05-04 | Henry Abbott | Philadelphia, PA | Casting Close Stoves | Missing |
| X-372 | 1802-05-10 | Henry Johnson | Baltimore, MD | Improvement in flat roofs for houses and balconies | Missing |
| X-373 | 1802-05-12 | Burgiss Allison | Unknown, NJ | Mode of improving spirits | Missing |
| X-374 | 1802-05-12 | Lewis Du Pre | unknown, SC | Scientific steelyards | Missing |
| X-375 | 1802-05-12 | Benjamin Ellicott | Lancaster, Lancaster County, PA | Machine for manufacturing salt | Missing |
| X-376 | 1802-05-12 | Andrew Law | Unknown, Unknown | New Plan for Printing Music | Missing |
| X-377 | 1802-05-14 | Nicholas Young | Unknown, Unknown | Machine for cutting fur for the use of hatters | Missing |
| X-378 | 1802-07-06 | Edward West | Fayette County, KY | Nail Cutting | Missing |
| X-379 | 1802-07-06 | Edward West | Fayette County, KY | Nail Cutting | Missing |
| X-380 | 1802-07-06 | Edward West | Fayette County, KY | Gun Lock | Missing |
| X-381 | 1802-07-06 | Edward West | Fayette County, KY | Steam Boat | Missing |
| X-382 | 1802-07-09 | Jacob Perkins | Boston, MA | Pump | Missing |
| X-383 | 1802-07-09 | Stephen Stillwell | N/A | Wheat Cleaner | Missing |
| X-384 | 1802-07-13 | John Greenleaf | Unknown, Unknown | Machine for cleaning out docks | Missing |
| X-385 | 1802-07-15 | Jesse Reed | Boston, MA | Method of Rolling Out Iron for Nails | Recovered |
| X-386 | 1802-07-17 | Ezekiel Miller | N/A | Brick Machine | Missing |
| X-387 | 1802-07-19 | Ezekiel Miller | N/A | Thresher | Missing |
| X-388 | 1802-07-19 | Martin Miller | Unknown, Unknown | Machine for cleaning clover seeds | Missing |
| X-389 | 1802-07-22 | Joseph Pope | N/A | Thresher | Missing |
| X-390 | 1802-07-24 | Thomas H. Rawson | Unknown, CT | Antibilious pills | Missing |
| X-391 | 1802-08-02 | Nathan H. Forbes | N/A | Nail Machine | Missing |
| X-392 | 1802-08-17 | James Templeton | Unknown, Unknown | Trigonometrical quadrant | Missing |
| X-393 | 1802-08-24 | William Paine | Unknown, PA | Still | Missing |
| X-394 | 1802-08-24 | Elisha Putnam | Unknown, NY | Improvement call a fire stop | Missing |
| X-395 | 1802-08-30 | Nicholas Boureau | Alexandria, DC | Economical house and ship steam kitchens | Missing |
| X-396 | 1802-09-03 | Matthew C. Groves | Unknown, Unknown | Astronomical Quadrant | Missing |
| X-397 | 1802-09-04 | Benjamin S. Walcott | N/A | Nail Machine | Missing |
| X-398 | 1802-09-07 | Leonard Kennedy | Unknown, Unknown | Improvement in fastening, in raising and supporting window sashes | Missing |
| X-399 | 1802-09-13 | John Richardson | Athens, Bradford County, PA | Evaporating furnace | Missing |
| X-400 | 1802-09-24 | Jacob Idler | Washington, DC | Cotton Press | Recovered |
| X-401 | 1802-10-09 | Samuel Briggs Jr. | N/A | Steam Engine | Missing |
| X-402 | 1802-10-14 | John Baptiste Aveilhe | N/A | Water Elevator | Missing |
| X-403 | 1802-11-29 | Asa W. Chickering | Unknown, Unknown | Splitting Skins | Missing |
| X-404 | 1802-11-29 | Benjamin Gorton | Unknown, Unknown | Improvement in extracting neutral salts from alkaline | Missing |
| X-405 | 1802-12-03 | Joseph Gardiner | Washington, DC | Erecting dry docks | Missing |
| X-406 | 1802-12-13 | William Caruthers | N/A | Nail Machine | Missing |
| X-407 | 1802-12-14 | Jas. (or James) Cowan | N/A | Mill Wheel | Missing |
| X-408 | 1802-12-15 | John Staples | Unknown, VA | Stills | Missing |
| X-409 | 1802-12-18 | Valentine Peers | Unknown, VA | Improvement in making salt | Missing |
| X-410 | 1802-12-20 | Timothy Kirk | Unknown, PA | Improvement in a boiling cistern | Missing |
| X-411 | 1802-12-21 | Simon Lozarus | Unknown, VA | Antibilious stomach cordial | Missing |
| X-412 | 1802-12-22 | Daniel Pettibone | Unknown, Unknown | Manner of Welding Cast Iron to Steel | Missing |
| X-413 | 1802-12-23 | Abraham Du Buc Marentille | Unknown, Unknown | Insubmersible boat | Missing |
| X-414 | 1802-12-30 | Allison Burgiss | Burlington, Burlington County, NJ | Improvement in manufacturing paper from corn husks | Missing |
| X-415 | 1802-12-31 | William Palmer | N/A | Sawing Stone | Missing |
| X-416 | 1803-01-01 | Simeon Rouse | Unknown, NY | Caboose of a vessel for distilling fresh from salt water | Missing |
| X-417 | 1803-01-04 | Gurdon F. Saltonstall | N/A | Cotton Cleaner | Missing |
| X-418 | 1803-01-07 | Christopher Hoxie | Hudson, Columbia County, NY | Rice Huller | Missing |
| X-419 | 1803-01-27 | Thomas Moore | Brookeville, Montgomery County, MD | Refrigerator for domestic uses | Missing |
| X-420 | 1803-02-01 | John Moffat | Unknown, Unknown | Boiler for accelerating the evaporation of liquids | Missing |
| X-421 | 1803-02-01 | John Moffat | Unknown, NY | Stills | Missing |
| X-422 | 1803-02-01 | Benjamin Cooley | Whately, Franklin County, MA | Water Elevator | Missing |
| X-423 | 1803-02-01 | Jedediah Peasley | Unknown, VT | Manufacturing marle into lime | Missing |
| X-424 | 1803-02-11 | Christopher J. Hutter | Unknown, PA | Making brandy out of all kinds of grain or fruit | Missing |
| X-425 | 1803-02-14 | Moses Coates | Coatesville, Chester County, PA | Apple Parer | Missing |
| X-426 | 1803-02-14 | Abel Stowell | Worcester, MA | Auger Gage | Missing |
| X-427 | 1803-02-14 | Oliver Bartlett | Unknown, Unknown | Wrought Nail Machine | Missing |
| X-428 | 1803-03-07 | William Bell | N/A | Cotton Gin | Missing |
| X-429 | 1803-03-07 | John Naylor | Unknown, Unknown | Improvement in extracting a spirit from starch water | Missing |
| X-430 | 1803-03-07 | Silas Bent | N/A | Water Wheel | Missing |
| X-431 | 1803-03-16 | John Baptiste Aveilhe | N/A | Wind Mill | Missing |
| X-432 | 1803-03-18 | Abraham Du Buc Marentille | Unknown, NJ | Wreck raft | Missing |
| X-433 | 1803-03-18 | Abraham Du Buc Marentille | Unknown, NJ | Sea sitting chair | Missing |
| X-434 | 1803-03-18 | John Staples Jr. | Flushing, Queens County, NY | Power from rising and falling of tide to run machinery | Missing |
| X-435 | 1803-03-18 | John Staples Jr. | Long Island, Queens County, NY | Submarine passage or hollow inverted arch | Missing |
| X-436 | 1803-03-21 | John Cottle | Philadelphia, PA | Machine for Cleaning Clover Seed | Missing |
| X-437 | 1803-03-21 | David F. Launy | Philadelphia, PA | Time pieces | Missing |
| X-438 | 1803-03-24 | George Hunter | Unknown, PA | Improvement in the process of manufacturing sea salt | Missing |
| X-439 | 1803-03-24 | Mr. DeLaBigarre Peter | Unknown, NY | Improvement in the mode of obtaining antiseptic gas | Missing |
| X-440 | 1803-03-28 | Edward Marquam | Unknown, Unknown | Improved house fan | Missing |
| X-441 | 1803-04-04 | Thomas H. Rawson | New London, New London County, CT | Antibilious pills | Missing |
| X-442 | 1803-04-04 | John Richardson | Athens, Bradford County, PA | Evaporataing furnace | Missing |
| X-443 | 1803-04-06 | William How | Bucks County, PA | Cooler or condensor of vapor | Missing |
| X-444 | 1803-04-11 | John Stevens | New York, NY | Producing steam | Missing |
| X-445 | 1803-04-22 | Daniel Brewer | Philadelphia, PA | Ruling Machine | Missing |
| X-446 | 1803-04-27 | Benjamin Platt | Unknown, CT | Heating and boiling water | Missing |
| X-447 | 1803-04-27 | Eliphalet Beebe | Allegany County, PA | Mode of Constructing Vessels with Crooked Keels | Missing |
| X-448 | 1803-05-04 | Matthew Barney | Nantucket, Nantucket County, MA | Machine for Deepening Channels | Missing |
| X-449 | 1803-05-13 | William Hopkins | Norfolk County, VA | Ship building | Recovered |
| X-450 | 1803-05-14 | Gurdon F. Saltonstall | Fayetteville, NC | Cotton Gin | Missing |
| X-451 | 1803-05-14 | Daniel Ilsley | Unknown, MA | Improvement in distilling spirits | Missing |
| X-452 | 1803-05-17 | Richard French | N/A | Mower | Missing |
| X-453 | 1803-05-17 | John J. Hawkins | Philadelphia, PA | Parallel Ruler | Missing |
| X-454 | 1803-05-17 | Burgiss Allison | Unknown, NJ | Improvement in the application of the principle of rectifying or improving spirits | Missing |
| X-455 | 1803-05-19 | John Clark | Hudson, Columbia County, NY | Pump | Missing |
| X-456 | 1803-05-25 | John W. Godfrey | Unknown, Unknown | Bellows | Missing |
| X-457 | 1803-05-25 | Timothy Alden Jr. | Unknown, NH | Expediting the manufacture of common salt | Missing |
| X-458 | 1803-06-04 | Lemuel J. Kilborn | Freehold, Greene County, NY | Method of distilling alcohol | Missing |
| X-459 | 1803-06-07 | Thomas Bedwell | Unknown, PA | Mode of extracting barks etc. for dying | Missing |
| X-460 | 1803-06-10 | David Morse | Unknown, Unknown | Machine for Making Hinges | Missing |
| X-461 | 1803-06-13 | Ezra Corning Sr. | Hartford, CT | Mode of manufacturing hats | Missing |
| X-462 | 1803-06-15 | Samuel Morey | Orford, Grafton County, NH | Steam Engine | Missing |
| X-463 | 1803-06-15 | Isaac Todd | Unknown, PA | Physiognotrace | Missing |
| X-464 | 1803-06-23 | Walter Keeler | Unknown, Unknown | Rocking churn | Missing |
| X-465 | 1803-06-25 | Liberty Stanley | N/A | Cloth Shearer | Missing |
| X-466 | 1803-06-28 | Benjamin Standring | N/A | Wool Carder | Missing |
| X-467 | 1803-06-28 | Nicholas Young | Unknown, Unknown | Machine for Pulling Hair Off Skins | Missing |
| X-468 | 1803-06-28 | William Ashbridge | Unknown, PA | Construction of iron cabooses | Missing |
| X-469 | 1803-06-30 | Robert Heterick | Winchester, VA | Columbia fire places | Missing |
| X-470 | 1803-07-01 | Samuel S. Camp | Norwalk, Fairfield County, CT | Improvement in the mode of applying springs to window sashes | Missing |
| X-471 | 1803-07-08 | Samuel Brown | Fayette County, KY | Distillation by steam in wooden or other stills | Missing |
| X-472 | 1803-07-20 | John Clark | Hudson, Columbia County, NY | Packing Goods Machine | Missing |
| X-473 | 1803-07-21 | David Lownes | Philadelphia, PA | Method of cooling liquors | Missing |
| X-474 | 1803-07-21 | David Lownes | Unknown, PA | Method of securing leaden or other pipes from frost | Missing |
| X-475 | 1803-07-25 | Daniel French | Middletown, CT | Machine for splitting and shaving shingles | Missing |
| X-476 | 1803-07-27 | George Keyser | N/A | Powder Mill | Missing |
| X-477 | 1803-07-28 | Timothy Kirk | York Borough, York County, PA | Clover Huller | Missing |
| X-478 | 1803-08-04 | Lewis Granty (Geanty) | unknown, MD | Construction of stills | Missing |
| X-479 | 1803-08-24 | John Baptiste Aveilhe | N/A | Submarine Drill | Missing |
| X-480 | 1803-08-25 | George Youle | New York, NY | Water cock | Missing |
| X-481 | 1803-09-09 | George Cleveland | Hartford, CT | Preparing seals' fur for hats | Missing |
| X-482 | 1803-09-13 | H. Betts | N/A | Wheel Press | Missing |
| X-483 | 1803-09-19 | John C. Stroebel | Reading, Berks County, PA | Mode of constructing carriages | Missing |
| X-484 | 1803-10-05 | Daniel Coit | St. Albans, Franklin County, VT | Family pills | Missing |
| X-485 | 1803-10-18 | L. Ruggles | N/A | Wrought Nail Machine | Missing |
| X-486 | 1803-10-19 | J. T. Turner | N/A | Thresher | Missing |
| X-487 | 1803-10-22 | Gilbert Livingston | Dutchess County, NY | Improvment in construction of keels of vessels | Missing |
| X-488 | 1803-10-25 | P. Pilsbury | Unknown, Unknown | Corn Sheller | Missing |
| X-489 | 1803-10-28 | William Thornton | Washington, DC | Boilers and working stills with same | Missing |
| X-490 | 1803-10-31 | S. Goodwin | Unknown, Unknown | Wind Mill | Missing |
| X-491 | 1803-11-01 | Valentine Cook | Hillsdale, Columbia County, NY | Finding salt water and metals [bletonism] | Missing |
| X-492 | 1803-11-12 | Samuel Cooley | Bolton, Tolland County, CT | Vegetable elixir, or cough drops | Missing |
| X-493 | 1803-11-15 | E. Alden | N/A | Pump | Missing |
| X-494 | 1803-11-16 | A. Mittor | N/A | Spinning Wheel | Missing |
| X-495 | 1803-11-19 | A, E. Paine | N/A | Wind Mill | Missing |
| X-496 | 1803-11-24 | Jacob Osborn | Unknown, CT | Improvement in fastening and supporting window sashes | Missing |
| X-497 | 1803-11-24 | William Bell | N/A | Cotton Gin | Missing |
| X-498 | 1803-11-25 | William Bell | Camden, Kershaw County, SC | Propelling boats for inland navigation | Missing |
| X-499 | 1803-11-25 | William Bell | N/A | Wind Mill | Missing |
| X-500 | 1803-11-30 | John Fairbanks | Boston, MA | Cylindric ruler for ruling paper | Missing |
| X-501 | 1803-12-03 | Jacob Cist | Unknown, PA | Grinding painter's color, printer's ink, etc. | Missing |
| X-502 | 1803-12-06 | Jes. Eve | N/A | Cotton Gin | Missing |
| X-503 | 1803-12-06 | Pliny Earl | Leicester, MA | Twilling Machine for Pricking Leather for Cards | Missing |
| X-504 | 1803-12-06 | S. Stewart | N/A | Fire Engine | Missing |
| X-505 | 1803-12-07 | Mr. Rogers | N/A | Nail Machine | Missing |
| X-506 | 1803-12-10 | James Curtis Jr. | Unknown, MA | Improvement in window springs | Missing |
| X-507 | 1803-12-16 | Edward Richardson | Newport, RI | Still heads and condensers | Missing |
| X-508 | 1803-12-16 | Jos. Elgar | N/A | Nail Machine | Missing |
| X-509 | 1803-12-21 | D. Buckman | N/A | Thresher | Missing |
| X-510 | 1803-12-26 | John Beverly | Philadelphia, PA | Hydro mechanical press | Missing |
| X-511 | 1803-12-30 | John Selby | Baltimore, MD | Improvement in painting rooms | Missing |
| X-512 | 1803-12-30 | Francis Guy | Baltimore, MD | Improvement in making colors for painting, printing, etc. | Missing |
| X-513 | 1804-01-05 | N. Miller | N/A | Brick Machine | Missing |
| X-514 | 1804-01-19 | Leonard Beatty | Unknown, NY | Stills and boilers | Missing |
| X-515 | 1804-01-23 | Talmage Ross | Unknown, NJ | Double draught fire place | Missing |
| X-516 | 1804-01-25 | Thomas Benger | Unknown, PA | Preparation of quercitron (black oak bark) for export or home use | Missing |
| X-517 | 1804-01-30 | William Wigton | Hudson, NY | Construction of stills and process of distilling spirits | Missing |
| X-518 | 1804-02-14 | Oliver Evans | Philadelphia, PA | Grinding Mill | Missing |
| X-519 | 1804-02-14 | Oliver Evans | Philadelphia, PA | Steam Engine | Missing |
| X-520 | 1804-02-17 | J. Staples Jr. | N/A | Wind & Water Wheel | Missing |
| X-521 | 1804-02-21 | Israel Wood | Unknown, MA | In setting stills and other large kettles | Missing |
| X-522 | 1804-02-21 | T. Barnett | N/A | Thresher | Missing |
| X-523 | 1804-02-21 | T. Pierce | Unknown, Unknown | Smut Mill | Missing |
| X-524 | 1804-02-24 | William W. Hopkins | Norfolk County, VA | Improvement in hanging window sashes | Missing |
| X-525 | 1804-02-27 | William B. Dyer | Unknown, Unknown | Spinning Wheel | Missing |
| X-526 | 1804-02-27 | J. Worrell | N/A | Clover Huller | Missing |
| X-527 | 1804-02-29 | Daniel S. Dean | Unknown, Unknown | Cloth washing machine | Missing |
| X-528 | 1804-03-05 | D. M. Miller | N/A | Pump | Missing |
| X-529 | 1804-03-05 | Archibald Robertson | New York, NY | Mode of preparing marble for painting on | Missing |
| X-530 | 1804-03-08 | Daniel M. Miller | Haddam, CT | Improvement in window fastenings or springs for fastening and supporting sash-lights | Missing |
| X-531 | 1804-03-10 | Samuel P. Lord Jr. | Unknown, CT | Improvement in extinguishing fires in houses | Missing |
| X-532 | 1804-03-16 | Moses Smith | Unknown, Unknown | Machine for watering cattle | Missing |
| X-533 | 1804-03-19 | Ward Gilman | Portsmouth, NH | Improvement in the bedstead, so constructed that it may be taken down and removed by one person in case of fire or on other occasions with much ease and expedition | Missing |
| X-534 | 1804-03-19 | Abraham Frost | Unknown, Unknown | Machine for preparing tow for paper | Missing |
| X-535 | 1804-03-19 | Benjamin Tyler | Claremont, NH | Wry fly applied to mills | Missing |
| X-536 | 1804-03-23 | John Williams | Deerfield, MA | Inclined plane, statical wheel | Missing |
| X-537 | 1804-03-24 | G. W. Robinson | N/A | Button Machine | Missing |
| X-538 | 1804-03-24 | Anthony Hunn | Danville, KY | Machine for the improvement of navigation | Missing |
| X-539 | 1804-03-31 | John Naylor | Richmond, VA | Improved still and boiler | Missing |
| X-540 | 1804-03-31 | Phineas Daniel | Philadelphia, PA | Mode of making shot | Missing |
| X-541 | 1804-04-12 | Owen Robert | Baltimore, MD | Machine for Breaking and Cleaning Flax and Hemp | Missing |
| X-542 | 1804-04-14 | Calvin Whiting | Unknown, Unknown | Mode of working sheet tin | Missing |
| X-543 | 1804-04-14 | Joseph Eaton | Boston, MA | Improvement in springs for window sashes | Missing |
| X-544 | 1804-04-17 | M. Garber | N/A | Nail Machine | Missing |
| X-545 | 1804-04-17 | John James Girand | Baltimore, MD | Double steam bath still | Missing |
| X-546 | 1804-04-24 | Paul Gottry | Unknown, Unknown | Machine for Cleaning Flax Seed | Missing |
| X-547 | 1804-04-30 | M. Withers | N/A | Clover Huller | Missing |
| X-548 | 1804-04-30 | Moses Coates | Unknown, Unknown | Machine for cutting straw and hay | Missing |
| X-549 | 1804-05-01 | T. Langstroth | N/A | Paper Mill | Missing |
| X-550 | 1804-05-01 | John Stickney | Unknown, Unknown | Pump | Missing |
| X-551 | 1804-05-03 | S. Houston | N/A | Thresher | Missing |
| X-552 | 1804-05-08 | L. Stevens | N/A | Churn | Missing |
| X-553 | 1804-05-08 | L. Stevens | N/A | Corn Sheller | Missing |
| X-554 | 1804-05-10 | Amos D. Allen | Windham, CT | Lanterns | Missing |
| X-555 | 1804-05-10 | Amos D. Allen | Windham, CT | Varnish for writing tablets | Recovered |
| X-556 | 1804-05-10 | Amos D. Allen | Windham, CT | Bench Plane | Recovered |
| X-557 | 1804-05-12 | Edward Crafts Jr. | Geneva, Ontario County, NY | Furnace for making pot and pearl ashes | Missing |
| X-558 | 1804-05-16 | Ezra Weld | Unknown, Unknown | Machine for making salt | Missing |
| X-559 | 1804-05-17 | Mr. Simon | Unknown, Unknown | Cotton Cleaner | Missing |
| X-560 | 1804-06-08 | Mr. Allison | Unknown, Unknown | Nail Machine | Missing |
| X-561 | 1804-06-08 | Asa Spencer | New London, CT | Improvement in making thimbles | Missing |
| X-562 | 1804-06-30 | William Tunstall | Richmond, VA | Machines for clearing grain from straw | Missing |
| X-563 | 1804-07-07 | B. Folger | Unknown, Unknown | Pump | Missing |
| X-564 | 1804-07-12 | Levi Osborn | Fairfield, CT | Fulling Mill | Missing |
| X-565 | 1804-07-12 | John Deaver | Baltimore, MD | Plow | Missing |
| X-566 | 1804-07-12 | Chris. Hoxie | Hudson, NY | Auger | Missing |
| X-567 | 1804-07-12 | Thomas Power | Unknown, Unknown | Improvement in the lime kiln | Missing |
| X-568 | 1804-08-10 | Christian Veltenair | Norfolk, VA | Metallic Grinder or Hone | Missing |
| X-569 | 1804-08-21 | N. Boureau | Unknown, Unknown | Nail Machine | Missing |
| X-570 | 1804-08-28 | William Harrington | N/A | Water Elevator | Missing |
| X-571 | 1804-08-29 | H. Betts | N/A | Windlass | Missing |
| X-572 | 1804-09-05 | Amis D. Allen | Berlin, PA | Machine for Cutting Chips for Chip Hats | Missing |
| X-573 | 1804-09-14 | Emanuel Kent | Unknown, Unknown | Crushing Plaster Mill | Missing |
| X-574 | 1804-09-18 | Orange Webb | Unknown, NY | Improvement in suspenders | Missing |
| X-575 | 1804-09-20 | R. Weems | N/A | Wind Mill | Missing |
| X-576 | 1804-09-29 | John Bolton Jr. | Unknown, NY | Wagons or carriage to be worked by hand | Recovered |
| X-577 | 1804-10-02 | John James Thomas | Charleston, SC | Method to prevent chimneys from admitting water in rainy weather | Missing |
| X-578 | 1804-10-04 | A. Taylor | Unknown, Unknown | Pump | Missing |
| X-579 | 1804-10-17 | Abel Brown | Hudson, NY | Rheumatic liniment for chronic rheumatism, strains, etc. | Missing |
| X-580 | 1804-10-23 | Simon Smith | New Haven, CT | Improvement in gallows or suspenders for breeches, pantaloons or trowsers | Missing |
| X-581 | 1804-10-29 | Benjamin Dearborn | Boston, MA | Candlesticks | Recovered |
| X-582 | 1804-11-01 | Laban Folger | Hingham, MA | Machine for breaking dough | Missing |
| X-583 | 1804-11-01 | Daniel McMullen | Philadelphia, PA | Machine for cooling and filtering water etc. | Missing |
| X-584 | 1804-11-16 | David Stodder | Unknown, MA | Composition or cement to prevent the roofs and other parts of houses from taking fire | Missing |
| X-585 | 1804-11-19 | John Hooker | Unknown, NY | Improvement in sash springs | Missing |
| X-586 | 1804-11-20 | James Deneale Jr. | Prince William County, VA | Thresher | Missing |
| X-587 | 1804-11-23 | E. I. Du Pont De Nemours | Wilmington, DE | Machine for Granulating Gun Powder | Missing |
| X-588 | 1804-11-27 | J. White | Unknown, Unknown | Oil Press | Missing |
| X-589 | 1804-12-22 | Simon Newton | Unknown, CT | Improvement in the cow or sheep bell | Missing |
| X-590 | 1804-12-22 | F. W. Geysenhayner | Unknown, Unknown | Nail Machine | Missing |
| X-591 | 1804-12-26 | J. W. Stanton | N/A | Wind Mill | Missing |
| X-592 | 1804-12-26 | Isaac Scott | New Haven, CT | New invented window springs | Missing |
| X-593 | 1804-12-29 | Joseph Bellows Jr. | Unknown, Unknown | Manufacturing ashes | Missing |
| X-594 | 1804-12-31 | Nathan Fobes (Forbes) | Providence, RI | Machine for Boring Gun Barrels | Missing |
| X-595 | 1804-12-31 | Samuel Chamberlaine | Unknown, MA | Medicine called bilious cordial | Missing |
| X-596 | 1804-12-31 | Seth Janes | Unknown, Unknown | Mode of improving or setting a horse's ears | Missing |
| X-597 | 1805-05-01 | I. Kimball | Unknown, Unknown | Nail Machine | Missing |
| X-598 | 1805-05-02 | Jos. Copes | N/A | Grist Mill | Missing |
| X-599 | 1805-05-03 | Horatio Gates Spafford | Hudson, NY | Close fire place | Missing |
| X-600 | 1805-05-03 | F. Lippert | Unknown, Unknown | Water Elevator | Missing |
| X-601 | 1805-05-04 | John Stickney | Baltimore, MD | Andirons | Missing |
| X-602 | 1805-05-04 | Robert Crane Jr. | Woodbury, Litchfield County, CT | Iron wheel for transporting carriages | Missing |
| X-603 | 1805-05-04 | Samuel Church | Amherst, MA | Sawing or cutting wheel felloes | Missing |
| X-604 | 1805-05-04 | J. Houston | Unknown, Unknown | Hone | Missing |
| X-605 | 1805-05-04 | Simeon Glover | Newtown, CT | Cross cramp for four wheeled carriages | Missing |
| X-606 | 1805-05-04 | A. Higham | Unknown, Unknown | Washing Machine | Missing |
| X-607 | 1805-05-04 | Jos. Platt | Platt | Excavator | Missing |
| X-608 | 1805-05-04 | Daniel Atherton | Richmond, VA | Physiognotrace | Missing |
| X-609 | 1805-05-04 | Jos. Platt | Unknown, Unknown | Excavator | Missing |
| X-610 | 1805-05-06 | A. Hill | Unknown, Unknown | Beaming Machine | Missing |
| X-611 | 1805-05-06 | Jacob Welsh | Boston, MA | Machine for Removing Earth, etc. | Missing |
| X-612 | 1805-05-07 | John Kunitz | Philadelphia, PA | Bleeding with and breeding leaches | Missing |
| X-613 | 1805-05-08 | Isaac Baker | Amherst, MA | Machine for sawing shingles | Missing |
| X-614 | 1805-05-09 | William Smith | New York, NY | Glazing and polishing linens | Missing |
| X-615 | 1805-05-10 | George Poyzer | Philadelphia, PA | Making sod oil for leather | Missing |
| X-616 | 1805-05-10 | Michael Zorger | York, York County, PA | Clover Huller | Missing |
| X-617 | 1805-05-10 | Ebenezer Avery Lester | Herkimer, Herkimer County, NY | Method of Making Molds for Casting Iron Screws | Recovered |
| X-618 | 1805-05-10 | Barnabas Langdon | St Albans, VT | Mode of Manufacturing Tin Ware | Missing |
| X-619 | 1805-05-10 | James Humiston Jr. | Wallingford, New Haven County, CT | Sluice to convey water to wheels, etc. | Missing |
| X-620 | 1805-05-17 | Henry Witmer | Lancaster, PA | Improvement on Anderson's condensing tub | Missing |
| X-621 | 1805-05-21 | T. W. Pryor | Unknown, Unknown | Bark Mill | Recovered |
| X-622 | 1805-05-22 | William Hodgson | Unknown, Unknown | Brick Machine | Missing |
| X-623 | 1805-05-24 | Thomas Pierce | Unknown, Unknown | Smut Machine | Missing |
| X-624 | 1805-05-27 | William Cooley | Bolton, Tolland County, CT | Mode of making posts of clay for fencing | Missing |
| X-625 | 1805-05-27 | Daniel Tomlinson | Brookfield, CT | Machine for raising fluids | Missing |
| X-626 | 1805-05-27 | Benjamin Eggleston Jr. | Princetown, Albany County, NY | Method of boiling, applicable to distilling, brewing, etc. | Missing |
| X-627 | 1805-06-01 | Ebenezer Jenks | Portland, ME | Mode of setting boilers | Missing |
| X-628 | 1805-06-01 | John Bennock | Boston, MA | Planing by machinery | Missing |
| X-629 | 1805-06-01 | John Hinman | New Haven, CT | Planing machine for sawing bellows boards | Missing |
| X-630 | 1805-06-15 | Alexander McNitt | Geneva, Ontario County, NY | Method of separating, preparing and collecting the sulphate of pot ashes into salpolychrestum | Missing |
| X-631 | 1805-06-25 | Louis Valcourt | Louisville, KY | Mill Machinery | Missing |
| X-632 | 1805-08-08 | John McBride | Nashville, TN | Cotton Gin | Missing |
| X-633 | 1805-08-13 | John Matthews | Philadelphia, PA | Machine for grinding and sawing dye woods | Missing |
| X-634 | 1805-08-25 | Charles McLean | Hartford, CT | Tub Mill | Missing |
| X-635 | 1805-08-28 | William Wing | Hartford, CT | Machines for casting types | Missing |
| X-636 | 1805-08-29 | William Wing | Hartford, CT | Springs for wheel carriages | Missing |
| X-637 | 1805-10-01 | Samuel Bartlett | Hartford, CT | Clay pipes for conduits | Missing |
| X-638 | 1805-10-09 | Asahel A. Kelsey | Hartford, CT | Making shingles | Missing |
| X-639 | 1805-10-09 | Daniel French | Middletown, CT | Manufacturing old junk or old rigging into oakum | Missing |
| X-640 | 1805-10-28 | Joseph Share | Baltimore, MD | Mode of Casting Bolts for Ships | Missing |
| X-641 | 1805-11-04 | William Deane | Pittsburgh, PA | Rafts | Missing |
| X-642 | 1805-11-04 | Caine LaPayne | Baltimore, MD | Cattle Mill | Missing |
| X-643 | 1805-11-07 | Seraphim Bellij | Baltimore, MD | Water Elevator | Missing |
| X-644 | 1805-11-09 | William Lillie Lillie | West Chester, NY | Machine for Splitting Skins | Missing |
| X-645 | 1805-11-13 | John Gilman Taylor | Unknown, Unknown | Making salt | Missing |
| X-646 | 1805-11-22 | Friend B. Kellog | Marlboro, MA | Shearing woollen or other cloths by water | Missing |
| X-647 | 1805-11-27 | Abraham Heistand | Yorktown, PA | Distilling apparatus | Missing |
| X-648 | 1805-12-07 | Jason Tatterson | Southampton, NY | Hackling Machine | Missing |
| X-649 | 1805-12-17 | William Johnson Folsom | Hallowell, ME | Clothes Washer | Recovered |
| X-650 | 1805-12-18 | George Barber Dexter | Boston, MA | Rheumatic pill | Missing |
| X-651 | 1805-12-20 | William Poole | Wilmington, DE | Kiln for drying grain | Missing |
| X-652 | 1805-12-20 | James Abraham | Middlesex, NJ | Kilns for drying grain | Missing |
| X-653 | 1805-12-28 | Samuel Adams | N/A | Reaper | Missing |
| X-654 | 1806-01-13 | Ebenezer Bryant | New London, CT | Rowing Machine | Missing |
| X-655 | 1806-01-22 | Samuel Goodwin | Baltimore, MD | Balance pendulum lock (Clock) | Missing |
| X-656 | 1806-01-24 | Richard Gookins | New Hampshire, MA | Machine for Making Bats or Frames for Wool Hats | Missing |
| X-657 | 1806-02-05 | Cephus Thompson | Bristol, RI | Machine for Copying Charts | Recovered |
| X-658 | 1806-02-08 | Philip Bennet | Rochester, MA | Loom | Missing |
| X-659 | 1806-02-13 | William Finn | Baltimore, MD | Pump | Missing |
| X-660 | 1806-02-14 | Michael Morrison | Newburyport, MA | Machine for Picking Oakum | Missing |
| X-661 | 1806-02-14 | George Richards | Stonington, CT | Machine for making dough | Missing |
| X-662 | 1806-02-14 | Theodore Burr | Unknown, Unknown | Bridges | Missing |
| X-663 | 1806-02-19 | John Hawkins | Philadelphia, PA | Planing machine | Missing |
| X-664 | 1806-02-19 | Samuel Hawkins | New York, NY | Gun carriages | Missing |
| X-665 | 1806-02-21 | John Eveleth | Unknown, Unknown | Machine for raising mud | Missing |
| X-666 | 1806-02-28 | Israel Newton | Norwich, Windsor County, VT | Medicine called the essence of tansy | Missing |
| X-667 | 1806-03-01 | John F. Gould | Unknown, Unknown | Machine for making brick | Missing |
| X-668 | 1806-03-05 | Richard Howell | Unknown, Unknown | Suspenders | Missing |
| X-669 | 1806-03-05 | Thomas Arnold | Unknown, Unknown | Evaporation | Missing |
| X-670 | 1806-03-07 | Samuel Dickey | Oxford, Chester County, PA | Stoves | Missing |
| X-671 | 1806-03-08 | John F. Gould | Unknown, Unknown | Tilt hammers | Missing |
| X-672 | 1806-03-08 | Joseph S. Mott | Alburg, VT | Joining and planing mill | Recovered |
| X-673 | 1806-03-17 | Richard Gaines | Georgetown, DC | Balance pendulum lock (Clock) | Missing |
| X-674 | 1806-03-19 | William Purden | Baltimore, MD | Hoisting machine | Missing |
| X-675 | 1806-03-21 | George Youle | New York, NY | Caboose | Missing |
| X-676 | 1806-03-21 | Elisha Mack | Unknown, Unknown | Dressing flax | Missing |
| X-677 | 1806-03-22 | Daniel Pettibone | Roxbury, CT | Mode of Welding Cast Steel to Iron | Missing |
| X-678 | 1806-03-26 | John Kennion | Dutchess County, NY | Fulling mill and washing machine | Missing |
| X-679 | 1806-03-31 | Abner Guild | Dedham, MA | Carding machine to form bats for wool hats | Missing |
| X-680 | 1806-03-31 | Stephen Payn | Unknown, Unknown | Machine for splitting skins | Missing |
| X-681 | 1806-04-01 | Richard Tripe | Dover, NH | Diving machines | Missing |
| X-682 | 1806-04-05 | Isaac Quintard | Stanfield, CT | Cider and bark mills | Missing |
| X-683 | 1806-04-17 | John Heavin | Montgomery, VA | Propelling boats up rivers by cranks and setting poles | Missing |
| X-684 | 1806-04-17 | John Heavin | Montgomery County, VA | Machine for cutting straw | Missing |
| X-685 | 1806-04-25 | Joseph Quinby | Boston, MA | Saw mills | Missing |
| X-686 | 1806-05-01 | Ephraim Hubbel | Middlebury, VT | Water wheels for mills | Missing |
| X-687 | 1806-05-02 | Charles Varle | Unknown, Unknown | Reducing calcareous matters into lime | Missing |
| X-688 | 1806-05-19 | John Edwards | New York, NY | Steelyards | Missing |
| X-689 | 1806-05-19 | John Edwards | New York, NY | Scale beams and balances | Missing |
| X-690 | 1806-05-21 | George Youle | New York, NY | Caboose stove, apparatus for cooking and distilling, etc. | Missing |
| X-691 | 1806-05-22 | John Cooper | Philadelphia, PA | Wind mill | Missing |
| X-692 | 1806-05-23 | James Gridley | Boston, MA | Boxes for carriage wheels | Missing |
| X-693 | 1806-05-25 | Beriah Swift | Washington, NY | Machine for shearing cloth | Recovered |
| X-694 | 1806-05-26 | Abner Wing | Washington, NY | Churn | Missing |
| X-695 | 1806-05-29 | Reuben Buck | Unknown, Unknown | Washing machine | Missing |
| X-696 | 1806-05-30 | Levi Brown | Berkshire, MA | Boxes for carriage wheels | Missing |
| X-697 | 1806-06-12 | Standfast Smith | Suffolk, Dorchester County, MA | Extracting salt from sea water | Missing |
| X-698 | 1806-06-13 | Standfast Smith | Suffolk, Dorchester County, MA | Facilitating the process of extracting salt from sea water | Missing |
| X-699 | 1806-06-13 | Standfast Smith | Suffolk, Dorchester County, MA | Facilitating the process of extracting salt from sea water | Missing |
| X-700 | 1806-06-24 | Solomon McCombs | Baltimore, MD | Filtering impure water, wine, etc. | Missing |
| X-701 | 1806-07-03 | William Harwood | Richmond, VA | Making pantiles | Missing |
| X-702 | 1806-07-07 | Roger Selden | Unknown, Unknown | Machine for perpendicular boring for manufacturing pumps | Missing |
| X-703 | 1806-07-14 | Nathaniel Cutting | Washington, DC | Machine for spinning rope yarn | Missing |
| X-704 | 1806-07-16 | John Bedford | Philadelphia, PA | Boots and shoes | Missing |
| X-705 | 1806-07-17 | Zachariah Mills | Hartford, CT | Swing cradle | Missing |
| X-706 | 1806-07-17 | William Wadsworth | Hartford, CT | Anti-stream boat | Missing |
| X-707 | 1806-08-07 | Thomas Woodsend | Unknown, Unknown | Cover for buildings called artificial slate or tile | Missing |
| X-708 | 1806-08-14 | Nathaniel Cutting | Washington, DC | Apparatus for improving the quality of cables | Missing |
| X-709 | 1806-09-02 | Baron Alexis Carrendeffez | New York, NY | Improvement whereby a beautiful yellow paint may be prepared | Missing |
| X-710 | 1806-10-09 | John Titus Morgan | New York, NY | Machine for raising vessels | Missing |
| X-711 | 1806-10-09 | George Barber Dexter | Boston, MA | Apparatus for the sublimation of sulphur | Missing |
| X-712 | 1806-10-21 | James Pountrey Wightman | Boston, MA | Mixture to render all kinds of woollen cloth water proof | Missing |
| X-713 | 1806-10-28 | William Tullock | Lantern Mills, Orange C. H., VA | Screens for freeing grain from dirt, etc. | Missing |
| X-714 | 1806-11-06 | Jonas Dawson | Philadelphia, PA | Suspenders | Missing |
| X-715 | 1806-12-04 | James Deneale | Dumfries, VA | Perpetual oven | Missing |
| X-716 | 1807-02-03 | Louis DeNiroth | Baltimore, MD | Composition for covering and flooring houses | Missing |
| X-717 | 1807-02-04 | Levi Rogers | Berwick, MA | Traverse sleigh | Missing |
| X-718 | 1807-02-05 | David Brown Jr. | Warren, RI | Machine for winding cotton | Missing |
| X-719 | 1807-02-06 | John Matthews | Philadelphia, PA | Grinding, sawing, and rasping dye woods | Missing |
| X-720 | 1807-02-07 | Parke Shee | Philadelphia, PA | Paper trimmer | Missing |
| X-721 | 1807-02-07 | John Beath | Boston, MA | Accommodating bolted truss for ruptures | Missing |
| X-722 | 1807-02-07 | William Hale | Champlain, NY | Auger | Missing |
| X-723 | 1807-02-10 | Jonathan Ellis | Unknown, Unknown | Machine for Cutting Brads | Missing |
| X-724 | 1807-02-10 | Samuel Milliken | Lexington, MA | Bottoms of metal for boots and shoes | Missing |
| X-725 | 1807-02-10 | Abel W. Hardenbrook | New York, NY | Water tight swivel screw for steam engines, etc. | Missing |
| X-726 | 1807-02-11 | William Montgomery | Philadelphia, PA | Boots and shoes | Missing |
| X-727 | 1807-02-11 | Abraham Ogier Stansbury | New York, NY | Egyptian lock | Missing |
| X-728 | 1807-02-11 | Charles Fales | Worcester, MA | Making charcoal from peats | Missing |
| X-729 | 1807-02-11 | Richard Button | Cazenovia, NY | Hemp and flax machine | Missing |
| X-730 | 1807-02-12 | Ebenezer Avery Lester | Little Falls, Herkimer County, NY | Method of Making Moulds for Casting Trundle Heads of Metal | Recovered |
| X-731 | 1807-02-17 | Abraham Hobart | Braintree, MA | Tilting wagons | Missing |
| X-732 | 1807-02-19 | Abraham Fisher | Hudson, NY | Fire place with a flat funnel | Missing |
| X-733 | 1807-02-21 | Arnold Buffum | Unknown, Unknown | Machine for carding fur and wool for hats | Missing |
| X-734 | 1807-02-22 | Ezekiel Hale | Haverhill, MA | Grist mill | Missing |
| X-735 | 1807-02-22 | Jesse Reed | Boston, MA | Machine for Cutting and Heading Nails | Missing |
| X-736 | 1807-02-25 | Joel Fox Jr. | Middlesex, MA | Working a Trip Hammer with the Handle in a Perpendicular Position | Recovered |
| X-737 | 1807-02-27 | Bornt G. Burtis | New York, NY | Making butter | Missing |
| X-738 | 1807-02-28 | Richard R. Elliot | Watertown, MA | Washing machine | Missing |
| X-739 | 1807-04-01 | Timothy Green | New York, NY | Mode of making salt | Missing |
| X-740 | 1807-04-01 | Lewis Dupre | Charleston, SC | Pendulum screw | Missing |
| X-741 | 1807-04-01 | Charles Colver | Champlain, NY | Double forcing pumps | Missing |
| X-742 | 1807-04-01 | George Youle | New York, NY | Stove | Missing |
| X-743 | 1807-04-01 | David Peacock | Burlington, NJ | Plough | Missing |
| X-744 | 1807-04-01 | Jeremiah McIlvain | Chester, PA | Machine for dressing shingles and staves | Missing |
| X-745 | 1807-04-01 | Elisha Bigelow | Baltimore, MD | Machine for Cutting Nails | Missing |
| X-746 | 1807-04-01 | James A. Pearce | Louisville, Falls of Ohio, KY | Propelling boats, etc, by oars | Missing |
| X-747 | 1807-04-15 | Alexander Craig | Unknown, NH | Method of raising stumps from the ground | Missing |
| X-748 | 1807-04-17 | Sylvester G. Whipple | Hallowell, Kennebec County, MA | Mode of applying bark for hats etc. | Missing |
| X-749 | 1807-04-17 | Ebenezer Jencks | Canaan, CT | Mode of making fire brick | Missing |
| X-750 | 1807-04-18 | Jonathan Mix | New Haven, CT | Main springs for carriages | Missing |
| X-751 | 1807-04-18 | Thomas Pope | New York, NY | Construction of bridges | Missing |
| X-752 | 1807-04-23 | Barnabas Langdon | St Albans, VT | Steelyard | Missing |
| X-753 | 1807-04-23 | Abraham Weaver | Adams County, PA | Apparatus for distilling | Missing |
| X-754 | 1807-04-23 | Henry Dunlap | Georgetown, DC | Disengaging horses suddenly from swingle-tree carriages | Missing |
| X-755 | 1807-04-23 | Allan Pollock | Boston, MA | Applicable to fire places and stoves | Missing |
| X-756 | 1807-04-24 | Allan Pollock | Boston, MA | Heating rooms | Missing |
| X-757 | 1807-04-25 | Simon Willard Jr. | Hudson, NY | Washing machine | Missing |
| X-758 | 1807-04-25 | Thomas Beatty | Unknown, Unknown | Washing, scouring, and churning machine | Missing |
| X-759 | 1807-05-05 | John Sellers | Alexandria, DC | Mode of making ropes to any size | Recovered |
| X-760 | 1807-05-06 | C. Hammond | Concord, MA | Gunner's Quadrant | Missing |
| X-761 | 1807-05-07 | Cornelius Tobey | Hudson, NY | Machine for Grinding Bark | Missing |
| X-762 | 1807-05-08 | Charles Kinsey | Essex, NJ | Machine for making paper | Missing |
| X-763 | 1807-05-08 | Russell Dorr | Kinderhook, NY | Cloth shearing machine | Recovered |
| X-764 | 1807-05-09 | Stephen Sayre | Bordentown, NJ | Rigging vessels of every denomination | Missing |
| X-765 | 1807-05-09 | Peter Harvey | Philadelphia, PA | Hanging curtains or blinds in coaches | Missing |
| X-766 | 1807-05-11 | Thomas Young | Philadelphia, PA | Shingling the roofs of houses | Missing |
| X-767 | 1807-05-20 | William Young | Philadelphia, PA | Lasts for Boots and Shoes | Missing |
| X-768 | 1807-05-20 | Jacob Smith Jr. | New York, NY | Fire engine | Missing |
| X-769 | 1807-05-20 | John Green | New York, NY | Mechanical spring buckle | Missing |
| X-770 | 1807-05-21 | Christian Hamaker | Lancaster, PA | Mills | Missing |
| X-771 | 1807-06-06 | Josiah Cleveland | Franklin County, PA | Washing machine | Missing |
| X-772 | 1807-06-08 | David Parmelee | Newtown, CT | Mortising machine | Recovered |
| X-773 | 1807-06-09 | William Phoebus | New York, NY | Galvanism for salivating | Missing |
| X-774 | 1807-06-20 | Stephen Steward | Walpole, NH | Stills | Missing |
| X-775 | 1807-06-22 | Obadiah Crawford | Unknown, Unknown | Cotton gin | Missing |
| X-776 | 1807-06-23 | Enoch Burt | Princeton, NJ | Machine for shearing cloth | Missing |
| X-777 | 1807-06-23 | Jacob Spofford | Ipswich, MA | Saw mills | Missing |
| X-778 | 1807-06-23 | Reuben Buck | Baltimore, MD | Churns | Missing |
| X-779 | 1807-06-26 | Cyrenus Beach | Newark, NJ | Axle and Box of Carriages | Missing |
| X-780 | 1807-07-01 | Michael Freytag | Philadelphia, PA | Filtering pot | Missing |
| X-781 | 1807-07-02 | Ralph Shaw | Boston, MA | Piano forte | Missing |
| X-782 | 1807-07-08 | Jordan Dodge | Rutland, VT | Machine for Nails and Brads | Missing |
| X-783 | 1807-07-10 | Thomas O'Conner | New York, NY | Condensers in distillation | Missing |
| X-784 | 1807-07-10 | Webster Lewis | Unknown, Unknown | Machine for making pills | Missing |
| X-785 | 1807-07-11 | Jonathan Nichols | Unknown, RI | Machine for Wrought Nails | Missing |
| X-786 | 1807-07-11 | Matthew Longwell | Gettysburgh, Adams County, PA | Heating water for steam by the rays of the sun | Missing |
| X-787 | 1807-07-13 | John B. Sartori | Philadelphia, PA | Making Italian pastes, maccaroni, vermicelli, etc. | Missing |
| X-788 | 1807-07-18 | Josiah Cleaveland | Franklin County, PA | Machine for cutting straw | Missing |
| X-789 | 1807-07-20 | Benjamin Connor | Portsmouth, NH | Machine for cutting straw | Missing |
| X-790 | 1807-07-24 | Ebenezer Jones | Alford, Berkshire County, MA | Washing machine | Missing |
| X-791 | 1807-07-24 | Thomas Bruff | Washington, DC | Apparatus for cleaning windows | Missing |
| X-792 | 1807-08-11 | Joseph Lehman | Philadelphia, PA | Preparing a vermifuge | Missing |
| X-793 | 1807-10-01 | Martin Lee | Oneida County, NY | Washing machine | Missing |
| X-794 | 1807-10-03 | Buel Cutler | Washington, NY | Churn | Missing |
| X-795 | 1807-10-03 | Edward Richardson | Fredericktown, MD | Stills | Missing |
| X-796 | 1807-10-06 | Thomas McIlwham | Princeton, NJ | Mould for Casting Copper Sheathing Nails | Missing |
| X-797 | 1807-10-12 | Baron Alexis DeCarrendeffez | New York, NY | Preparing green coloring matter or paint | Missing |
| X-798 | 1807-10-14 | Orange Webb | New York, NY | Mode of preparing leather for straps of suspenders | Missing |
| X-799 | 1807-10-19 | Joseph Pitkin | Hartford, CT | Machine for planking Hats, and Making Cloth without Yarn | Missing |
| X-800 | 1807-10-26 | Jesse Arnold | Pawlings, Dutchess County, NY | Cheese press | Missing |
| X-801 | 1807-11-04 | Richard Wheatley | Boston, MA | Mode of Making Stove Pipes | Recovered |
| X-802 | 1807-11-12 | James Butland | Philadelphia, PA | Mode of Manufacturing Iron | Missing |
| X-803 | 1807-11-18 | Seth Vinton | Willington, CT | Plough harrow | Missing |
| X-804 | 1807-11-20 | Isaiah Jennings | New York, NY | Making thimbles for the sails of ships | Recovered |
| X-805 | 1807-11-27 | Anson Blake | Lincoln, KY | Gauge for Saw Mills | Missing |
| X-806 | 1807-11-30 | Benjamin B. Bernard | Unknown, VA | Thrashing machine | Missing |
| X-807 | 1807-11-30 | Simon Willard | Hudson, NY | Machine for cutting and heading nails | Missing |
| X-808 | 1807-11-30 | Simon Willard Jr. | Hudson, NY | Thrashing and cleaning grain | Missing |
| X-809 | 1807-12-01 | Simon Williard Jr. | Hudson, NY | Water wheel | Missing |
| X-810 | 1807-12-13 | William Thornton | Washington, DC | Stills | Missing |
| X-811 | 1807-12-15 | Samuel Rogers | Plymouth, MA | Machine for heading nails | Missing |
| X-812 | 1807-12-15 | John Scripture | Alford, MA | Churning machine | Recovered |
| X-813 | 1807-12-24 | Jeremiah H. Pierson | Ramapo Works, Rockland, NY | Hoop and sheet iron | Missing |
| X-814 | 1807-12-24 | Isaac Pierson | New York, NY | Rolling and slitting mills | Missing |
| X-815 | 1808-01-08 | Antoine Boucherie | Philadelphia, PA | Making and refining sugar | Missing |
| X-816 | 1808-01-09 | Eli Barnum | Unknown, MA | Mode of making boots and shoes | Missing |
| X-817 | 1808-01-22 | Oliver Evans | Philadelphia, PA | Mode of manufacturing flour and meal | Missing |
| X-818 | 1808-01-28 | Jonathan Hicks | Hadley, MA | Machine for cutting nails | Missing |
| X-819 | 1808-02-01 | John F. Gould | Newburyport, MA | Fire places, or open stoves | Missing |
| X-820 | 1808-02-09 | Samuel Dodge | Cleveland, Cuyahoga County, OH | Fanning mill for grain, etc. | Missing |
| X-821 | 1808-02-24 | William Bent | Boston, MA | Machine for splitting leather and skins | Missing |
| X-822 | 1808-02-24 | Hezekiah Harris | Bullit, KY | Plough | Missing |
| X-823 | 1808-03-04 | Daniel Watson | Plymouth, MA | Common suction pump | Missing |
| X-824 | 1808-03-04 | Philemon Heaton Jr. | Unknown, Unknown | Mode of propelling boats | Missing |
| X-825 | 1808-03-04 | Robert Fulton | New York, NY | Mode of manufacturing cordage | Missing |
| X-826 | 1808-03-05 | Phineas Pratt | Saybrook, CT | Machine for making combs | Missing |
| X-827 | 1808-03-08 | Simeon Hays | Pulteney, NY | Churn | Missing |
| X-828 | 1808-03-09 | Eleazer Cady Jr. | Chatham, NY | Forcing pump, with double action | Missing |
| X-829 | 1808-03-10 | Nicholas King | Washington, DC | Revolving churn | Missing |
| X-830 | 1808-03-11 | Stephen Stackhouse | Cazenovia, NY | Churn | Missing |
| X-831 | 1808-03-13 | Giles Gridley | Newburyport, MA | Chimneys | Missing |
| X-832 | 1808-03-14 | Giles Gridley | Newburyport, MA | Fire places | Missing |
| X-833 | 1808-03-15 | William Wadsworth | Hartford, CT | Washing machine | Missing |
| X-834 | 1808-03-15 | William Wadsworth | Hartford, CT | Machine for propelling boats | Missing |
| X-835 | 1808-03-18 | Asher Donalds | Norfolk, CT | Machine for grinding bark, etc. | Missing |
| X-836 | 1808-03-19 | John Johnson | Unknown, Unknown | Water wheel | Recovered |
| X-837 | 1808-03-21 | Ebenezer Benedict | New Marlboro, MA | Cider and cheese press | Missing |
| X-838 | 1808-03-21 | Eli Barnum | New Marlborough, MA | Distilling or boiling water | Missing |
| X-839 | 1808-03-22 | William W. Townsend | Sandy Hill, NY | Churns | Missing |
| X-840 | 1808-03-23 | Oliver Barrett Jr. | Sandy Hill, NY | Fanning mill for grain or clover seed, etc. | Missing |
| X-841 | 1808-03-25 | Roswell Hopkins | Hopkinton, NY | Lever for turning wheels, rowing boats, etc. | Missing |
| X-842 | 1808-03-30 | Eleazer Smith | Franklin, MA | Trimming straw plat for bonnets | Missing |
| X-843 | 1808-03-31 | Jedediah Tallman | Albany, NY | Pendulum power for machinery | Missing |
| X-844 | 1808-04-06 | Joseph Pondrell | New York, NY | Economical furnace or stove | Missing |
| X-845 | 1808-04-11 | Thomas Cohoon | Washington, DC | Cross cut saw | Missing |
| X-846 | 1808-04-12 | Robert Kilborn | Great Barrington, MA | Mode of lessening friction in carriages | Missing |
| X-847 | 1808-04-12 | Ephraim Warner | Waterbury, CT | Cheese press | Missing |
| X-848 | 1808-04-13 | Thomas Cohoon | Washington, DC | Machine for breaking and swingling hemp | Missing |
| X-849 | 1808-04-14 | Thomas Cohoon | Washington, DC | Screw press | Missing |
| X-850 | 1808-04-14 | Ira Ives | Bristol, Hartford County, CT | Faucets for drawing liquors from casks | Missing |
| X-851 | 1808-04-18 | William Coolidge | Boston, MA | Machine for smoothing and polishing paper | Missing |
| X-852 | 1808-04-20 | Samuel Frothingham | Middletown, CT | Stripping alum dressed leather for shoe binding | Missing |
| X-853 | 1808-04-21 | John Fairbanks | Boston, MA | Cylindric rolling mills | Missing |
| X-854 | 1808-04-22 | Daniel Pierpont | New Haven, CT | Churn | Missing |
| X-855 | 1808-04-23 | Timothy Cruttenden | Pulteney, NY | Spinning wheel | Missing |
| X-856 | 1808-04-23 | Roswell Pitkin | East Hartford, CT | Manufacturing hats, cloths, etc. without bowing from a fleece or sheet taken from a carding engine | Recovered |
| X-857 | 1808-04-25 | Aaron Reed | Columbia County, NY | Churn | Missing |
| X-858 | 1808-04-25 | David Cobb | Boston, MA | Carriages for field artillery | Missing |
| X-859 | 1808-04-25 | Nehemiah Howe | Windham, CT | Churn | Missing |
| X-860 | 1808-04-25 | Joseph Reeve | Newburg, Orange County, NY | Mode of twisting whalebone for whips | Missing |
| X-861 | 1808-04-25 | Benjamin Taylor | New York, NY | Impelling boats, etc. | Missing |
| X-862 | 1808-04-25 | Josiah Jennings | New York, NY | Machine for making rivets | Missing |
| X-863 | 1808-04-26 | Daniel Rider | New York, NY | Mode of making oakum | Missing |
| X-864 | 1808-04-26 | Leonard Kennedy | Hartford, CT | Washing machine | Missing |
| X-865 | 1808-04-26 | Ebenezer Stowell | Worcester, MA | Shearing machine for cloth | Missing |
| X-866 | 1808-04-29 | Benjamin Dearborn | Unknown, MA | Anglet | Recovered |
| X-867 | 1808-05-14 | Elam King | Johnstown, NY | Washing machine | Missing |
| X-868 | 1808-05-14 | Ruben Ainsworth | Unknown, Unknown | Making pearl ash in kettles without the use of ovens | Missing |
| X-869 | 1808-05-14 | William Flower | Philadelphia, PA | Life buoy, or seaman's friend | Missing |
| X-870 | 1808-05-16 | John Bailey Jr. | Plymouth County, MA | Door hinge friction roller | Missing |
| X-871 | 1808-05-16 | William Rhodes | New York, NY | Pumps | Missing |
| X-872 | 1808-05-16 | William Rhodes | New York, NY | Floating dry dock | Missing |
| X-873 | 1808-05-18 | Simeon B. Willard | Bloomfield, NY | Churn | Missing |
| X-874 | 1808-05-21 | Robert Pierpont Cunningham | Pomfret, CT | Cheese press | Recovered |
| X-875 | 1808-06-01 | Samuel Barber | New York, NY | Application of whip saw | Missing |
| X-876 | 1808-06-03 | Caleb Johnson | New Glasgow, VA | Double lever press for tobacco, etc. | Missing |
| X-877 | 1808-06-03 | Jesse Reed | Boston, MA | Machine for rasping dye woods | Recovered |
| X-878 | 1808-06-03 | Jerry Hill | New Haven, CT | Carriage springs | Missing |
| X-879 | 1808-06-03 | Daniel T. Wandall | New York, NY | Propelling boats across rivers by the current | Missing |
| X-880 | 1808-06-04 | Martin Lee | New York, NY | Washing machine | Missing |
| X-881 | 1808-06-13 | Robert Patton | Columbia, PA | Washing machine, churning, getting out clover seed, etc. | Missing |
| X-882 | 1808-06-14 | Joseph Jelleff | Butternuts, NY | Nail machine | Missing |
| X-883 | 1808-06-17 | James Finley | Fayette County, PA | Chain bridge | Missing |
| X-884 | 1808-06-17 | Jonathan Mix | New Haven, CT | Thoroughbrace springs for carriages | Missing |
| X-885 | 1808-06-17 | Allen Pollock | Boston, MA | Stoves for heating rooms | Missing |
| X-886 | 1808-06-18 | Ebenezer Benedict | New Marlboro, MA | Cider and cheese press | Missing |
| X-887 | 1808-06-20 | Ebenezer Jones | Alford, Berkshire County, MA | Perpendicular washing machine | Missing |
| X-888 | 1808-06-20 | Ebenezer Jones | Alfred, Berkshire County, MA | Machine for sawing stone, wood, etc. | Missing |
| X-889 | 1808-06-21 | Simson Stewart | Pittstown, NY | Machine for shearing cloth | Missing |
| X-890 | 1808-06-22 | David Burt | Schenectady, NY | Hydraunt for drawing water from aqueducts | Missing |
| X-891 | 1808-06-23 | Osborn Parsons | Hudson City, NY | Rectification of spirits | Missing |
| X-892 | 1808-06-24 | Winslow Lewis | Boston, MA | Lighting the binnacle of ships | Missing |
| X-893 | 1808-06-24 | Robert Ramsey | Hanover, NH | Making conduit pipes from clay | Missing |
| X-894 | 1808-06-24 | John Henry Ross | Baltimore, MD | Illuminator for lighting stair cases | Missing |
| X-895 | 1808-06-27 | James Armour Jr. | Baltimore, MD | Folding or spiral springs for carriages | Missing |
| X-896 | 1808-06-29 | Ezekiel Olds | Brookfield, MA | Splitting boards, planks, etc. | Missing |
| X-897 | 1808-07-01 | Asahel E. Paine | Delhi, Delaware County, NY | Washing machine | Missing |
| X-898 | 1808-07-07 | Dyer Cleveland | Sheffield, MA | Churn | Missing |
| X-899 | 1808-07-09 | Robert Ramsay | Hanover, NH | Pressing and boring machine | Missing |
| X-900 | 1808-07-09 | Samuel Parker | Billerica, Middlesex County, MA | Tanning | Recovered |
| X-901 | 1808-07-09 | Samuel Parker | Billerica, Middlesex County, MA | Currying and finishing leather | Missing |
| X-902 | 1808-07-11 | Abel Brewster | Hartford, CT | Universal vitriolic test for making all kind of bank or other bills | Missing |
| X-903 | 1808-07-11 | Dudley Loomis | Springfield, NY | Washing machine | Missing |
| X-904 | 1808-07-11 | Dyer Cleveland | Sheffield, MA | Churn | Missing |
| X-905 | 1808-07-11 | Ebenezer Lister | Charleston, NY | Washing machine | Missing |
| X-906 | 1808-07-11 | Enos Trescott | New Marlboro, MA | Washing machine | Missing |
| X-907 | 1808-07-11 | Theron Henry | Bloomfield, NY | Washing machine | Missing |
| X-908 | 1808-07-11 | Thomas Osgood | Charleston, NY | Washing machine | Missing |
| X-909 | 1808-07-12 | Erastus Townsend | Canaan, Columbia County, NY | Churn | Missing |
| X-910 | 1808-07-12 | Isaac Cobb | Walpole, NH | Splitting skins | Missing |
| X-911 | 1808-07-12 | Jonathan Lucas Jr. | Charleston, SC | Machine for cleaning rice | Missing |
| X-912 | 1808-07-13 | Eli Barnum | New Marlboro, Berkshire County, MA | Distilling | Recovered |
| X-913 | 1808-07-13 | Philip Apple | Philadelphia, PA | Funnels for filling vessels with fluids | Missing |
| X-914 | 1808-07-18 | Uzziel Geer | Norwich, CT | Wind mill | Missing |
| X-915 | 1808-07-19 | Samuel Bartlett | East Windsor, CT | Rolling tub mill | Missing |
| X-916 | 1808-07-29 | Martin Tuller | Royalton, VT | Machine for shaving and splitting leather | Missing |
| X-917 | 1808-08-02 | John Bolton | Philadelphia, PA | Churn | Recovered |
| X-918 | 1808-08-02 | Elihu Hotchkiss | Brattleboro, VT | Straw cutting machine | Recovered |
| X-919 | 1808-08-06 | Obadiah Seely | Unknown, Unknown | Spinning wheels | Missing |
| X-920 | 1808-08-06 | Jacob Coon | Granville, NY | Machine for making wheels | Missing |
| X-921 | 1808-08-08 | John Thomas Ricketts | Cameron, Fairfax County, VA | Machine for hulling and cleaning rice | Missing |
| X-922 | 1808-08-12 | William Smith | Gloucester, NJ | Machine for elevating water at mills | Missing |
| X-923 | 1808-08-16 | John Templeman | Allegany County, MD | Improvement in chain bridges invented by James Finley | Missing |
| X-924 | 1808-08-26 | Joshua Cone | Redding, CT | Springs for carriages | Missing |
| X-925 | 1808-08-26 | William Barker | Wilkes-Barre, PA | Machine for raising water | Missing |
| X-926 | 1808-08-30 | Stephen W. Dana | Rutland, VT | Washing machine | Missing |
| X-927 | 1808-08-30 | Stephen W. Dana | Rutland, VT | Wheel carriages | Missing |
| X-928 | 1808-08-31 | Samuel Gragg | Boston, MA | Elastic chair | Missing |
| X-929 | 1808-08-31 | Samuel Prince | New York, NY | Machine for pressing straw or chip hats | Missing |
| X-930 | 1808-08-31 | Stephen Winchester | Newtown, CT | Washing and churning machine | Missing |
| X-931 | 1808-09-07 | Garry Bishop | Cazenovia, NY | Washing and churning machine | Missing |
| X-932 | 1808-09-07 | Garry Bishop | Cazenovia, Madison County, NY | Washing and churning machine | Missing |
| X-933 | 1808-09-08 | Daniel Parmele | Dutchess County, NY | Rocking churn | Missing |
| X-934 | 1808-09-16 | Asaph C. Chandler | Taunton, MA | Machine for heading nails | Missing |
| X-935 | 1808-09-19 | Benjamin Atwell | Burlington, NY | Fanning and winnowing mill | Missing |
| X-936 | 1808-09-20 | Isaiah Jennings | New York, NY | Pump bellows for furnaces, etc. | Missing |
| X-937 | 1808-09-21 | Marcus B. Parmelee | Newtown, CT | Ratchet wheel | Missing |
| X-938 | 1808-09-21 | Marcus B. Parmelee | Newtown, CT | Ratchet wheel | Missing |
| X-939 | 1808-09-22 | Paul Pilsbury | Newbury, MA | Machine for grinding bark | Missing |
| X-940 | 1808-10-03 | William Burtis | New Brunswick, NJ | Tailor's bench | Missing |
| X-941 | 1808-10-03 | Elisha Calender | Boston, MA | Lightning rods | Missing |
| X-942 | 1808-10-05 | Thomas Bruff | Washington, DC | Making ball shot by pressure | Recovered |
| X-943 | 1808-10-07 | John P. Lherbette | Washington, DC | Military knapsacks | Missing |
| X-944 | 1808-10-24 | Samuel Moon Jr. | Downingtown, PA | Churn | Missing |
| X-945 | 1808-10-27 | John West | Stafford County, VA | Ovens | Missing |
| X-946 | 1808-10-28 | Jacob Cist | Wilkes-Barre, PA | Black pigment or mineral black for printing ink or painting in oil or water | Missing |
| X-947 | 1808-10-28 | Daniel Pettibone | Roxbury, Norfolk County, CT | Rarefying air stove | Recovered |
| X-948 | 1808-11-04 | Charles Cooper | Lebanon County, PA | Looms for weaving | Missing |
| X-949 | 1808-11-09 | Randall Wallis | Baltimore, MD | Winnowing machine | Missing |
| X-950 | 1808-11-17 | Eli Fourestier | Philadelphia, PA | Refining lamp oil | Missing |
| X-951 | 1808-11-17 | Simon B. Willard | Bloomfield, Ontario County, NY | Scrubbing and scouring machine for floors | Missing |
| X-952 | 1808-11-21 | Stedman Adams | Hartford, CT | Stills and rotary steam engines | Missing |
| X-953 | 1808-11-21 | Samuel Chamberlain | Boston, MA | Boots and shoes | Missing |
| X-954 | 1808-11-23 | Joel Farnham | Oswego, NY | Improvement in McComb's horizontal reacting water wheel | Missing |
| X-955 | 1808-11-25 | Richard B. Chenoweth | Baltimore, MD | Improvement in plows | Recovered |
| X-956 | 1808-11-30 | Stephen Mirick | Madison County, NY | Rolling wheel on an inclined shaft | Recovered |
| X-957 | 1808-12-05 | John Devotie | Vernon, Oneida County, NY | Churn and washing machine | Missing |
| X-958 | 1808-12-08 | William Brown | Baltimore, MD | Mill for breaking plaster of paris | Missing |
| X-959 | 1808-12-08 | Rufus W. Adams | Marlboro, Windham County, VT | Grist mills | Missing |
| X-960 | 1808-12-10 | Benjamin Giddins | Baltimore, MD | Elastic trace and brace by connected springs | Missing |
| X-961 | 1808-12-10 | Stephen Couch | Boston, MA | Machine for rolling and plating iron | Missing |
| X-962 | 1808-12-10 | Luther Jones | Canton, CT | Churn | Missing |
| X-963 | 1808-12-12 | Isaac Bennitt | Newtown, CT | Still tubs | Missing |
| X-964 | 1808-12-13 | Thomas Nicholson | Bardstown, KS | Machine for dressing shingles | Missing |
| X-965 | 1808-12-19 | James P. Parke | Philadelphia, PA | Alarm bell for fire engines | Recovered |
| X-966 | 1808-12-19 | Levi Martin | Granville, NY | Cheese press | Missing |
| X-967 | 1808-12-19 | Amos Gunn | New Haven, CT | Double boiler for distilling | Missing |
| X-968 | 1808-12-26 | Willard Badger | Boston, MA | Mode of casting pipes or tubes | Missing |
| X-969 | 1808-12-26 | Joseph Henderson | Guilford, CT | Mode of suspending carriages | Missing |
| X-970 | 1808-12-27 | Hezekiah Dickerman | Great Barrington, Berks, MA | Cheese press | Missing |
| X-971 | 1808-12-28 | John Dimond | Philadelphia, PA | Distillation | Missing |
| X-972 | 1808-12-28 | Hazen Erwin | Boston, MA | Cheese press | Missing |
| X-973 | 1808-12-31 | George Rogers | Northampton, MA | Vegetable pulmonic detergent | Missing |
| X-974 | 1809-01-06 | William Sampson | New Haven, CT | Machine for cleaning clover seed | Missing |
| X-975 | 1809-01-06 | Pliny Upham | Brookfield, MA | Pneumatic forcing pump | Recovered |
| X-976 | 1809-01-06 | William Miller | New York, NY | Machine for manufacturing dip candles | Missing |
| X-977 | 1809-01-06 | Samuel Stansbury | New York, NY | Machine for dipping candles | Missing |
| X-978 | 1809-01-06 | Abraham Horn | Easton, PA | Pumps | Missing |
| X-979 | 1809-01-07 | Joel Farnham | Oswego, NY | Machine for making window sashes | Missing |
| X-980 | 1809-01-07 | Seth Boyden | Foxboro, MA | Machine for splitting hides and shaving leather | Recovered |
| X-981 | 1809-01-08 | Richard S. Chappel | Pawlet, Rutland County, VT | Machine for dressing flax and hemp | Missing |
| X-982 | 1809-01-10 | Moses Moss | Farmington, Hartford County, CT | Hair combs | Missing |
| X-983 | 1809-01-12 | Septimus Tucker | Dublin, PA | Washing machine | Recovered |
| X-984 | 1809-01-14 | Jonathan Pratt | Middletown, CT | Composition for the bottoms of vessels | Missing |
| X-985 | 1809-01-14 | William Ross | New York, NY | Carriages | Missing |
| X-986 | 1809-01-14 | James Blanchard | New York, NY | Fastening to window shutters | Missing |
| X-987 | 1809-01-15 | Samuel Bartlett | Hartford, CT | Clay conduit | Missing |
| X-988 | 1809-01-16 | William Thornton | Washington, DC | Steam boats and boilers | Missing |
| X-989 | 1809-01-16 | Samuel Bolton | Boston, MA | Heating liquids | Missing |
| X-990 | 1809-01-19 | Alexander Duncan Moore | New Hanover, NC | Machine for pounding rice | Missing |
| X-991 | 1809-01-30 | Antoine Boucherie | Philadelphia, PA | Distilling apparatus | Missing |
| X-992 | 1809-01-30 | Nicholas Simon Parmantier | Philadelphia, PA | Discolouring linseed oil, imparting to it a drying quality and converting it into an uncoloured varnish | Missing |
| X-993 | 1809-01-31 | Antoine Boucherie | Philadelphia, PA | Improvement in making gin cordial, called Holland's gin | Missing |
| X-994 | 1809-02-04 | James Lindsey | Cazenovia, NY | Sawing timber in circular form | Missing |
| X-995 | 1809-02-11 | Robert Fulton | New York, NY | Steam boats | Missing |
| X-996 | 1809-02-11 | Jonathan Jones | Fabias, Onondaga County, NY | Cleansing lye and melting pot ash | Missing |
| X-997 | 1809-02-11 | Eli F. Hill | Fabias, Onondaga County, NY | Washing machine | Missing |
| X-998 | 1809-02-11 | Eli F. Hill | Fabias, Onondaga County, NY | Flax and hemp machine | Missing |
| X-999 | 1809-02-13 | Richard Berrian | New York, NY | Overshot strap or chain wheel to go by water | Missing |
| X-1000 | 1809-02-14 | Moses Crafts | Troy, NY | Horse boat | Missing |
x-patents/index.txt · Last modified: 2021/05/13 17:55 by jeffj