| All Patents |
Patents 1 -
500
of 41649
      |
| Number | Date | Patentee | Title | Type |
| 1X | Jul. 31, 1790 | S. Hopkins | Making pot and pearl ashes | |
| 2X | Aug. 06, 1790 | J.S. Sampson | Manufacturing Candles | chandler |
| 3X | Dec. 18, 1790 | O. Evans | Manufacturing flour and meal | miller |
| 4X | Jan. 29, 1791 | F. Bailey | Punch for making printing type | printer |
| 5X | Jan. 29, 1791 | A. Putnam | Improvement in distilling | |
| 6X | Mar. 10, 1791 | J. Stone | Driving piles for bridges, etc. | |
| 7X | Mar. 11, 1791 | S. Mullikin | Machine for thrashing grain and corn | miller |
| 8X | Mar. 11, 1791 | S. Mullikin | Breaking and Swingling of Hemp, etc. | spinner |
| 9X | Mar. 11, 1791 | S. Mullikin | Machine for cutting and polishing stone and marble | stonemason |
| 10X | Mar. 11, 1791 | S. Mulliken | Machine for raising a nap on cloths | |
| 11X | Mar. 17, 1791 | G. Parkinson | Machine for Spinning Hemp and Flax etc. | spinner |
| 12X | Jul. 30, 1791 | J. Dickerson | Improvement in tide mills | |
| 13X | Aug. 02, 1791 | S. Briggs, Sr., S. Briggs, Jr. | Machine for making nails | |
| 14X | Aug. 02, 1791 | W. Thomson | Machine for thrashing wheat, etc. | miller |
| 15X | Aug. 04, 1791 | R.R. Livingston | Diminishing friction of spindles | |
| 16X | Aug. 10, 1791 | T. Beadwell, J. Biddis | Making Extract of Bark | bark processing machines |
| 17X | Aug. 10, 1791 | L.C. Kuhn | Improved bedstead | household tools |
| 18X | Aug. 10, 1791 | P. Gordon | Manufacturing Boots | cobbler |
| 19X | Aug. 10, 1791 | H. Voight | Propelling boats by cattle | |
| 20X | Aug. 19, 1791 | H. Keyser | Manufacturing Gun Powder | gunsmith |
| 21X | Aug. 26, 1791 | J. Macomb | Horizontal hollow water wheels for mills | miller |
| 22X | Aug. 26, 1791 | J. Rumsey | Improvement on Dr Barker's mill | miller |
| 23X | Aug. 26, 1791 | J. Rumsey | Conveying water to operate on mills | miller |
| 24X | Aug. 26, 1791 | J. Rumsay | Improvement on captain Savary's steam engine | |
| 25X | Aug. 26, 1791 | J. Rumsay | Bellows | blacksmith |
| 26X | Aug. 26, 1791 | J. Rumsay | Generation of steam | |
| 27X | Aug. 26, 1791 | J. Rumsay | Application of steam to propel boats or vessels | |
| 28X | Aug. 26, 1791 | J. Fitch | Steam engine applied to navigation | |
| 29X | Aug. 26, 1791 | N. Read | Improved boiler of the steam engine | |
| 30X | Aug. 26, 1791 | N. Read | Improvement in distilling | |
| 31X | Aug. 26, 1791 | J. Stevens, Jr. | Boiler for generating steam | |
| 32X | Aug. 26, 1791 | J. Stevens, Jr. | Raising water by steam | |
| 33X | Aug. 26, 1791 | J. Stevens, Jr. | Application of steam to work bellows | |
| 34X | Aug. 26, 1791 | E. Cruse | Improvement on Savary's steam engine for raising water | |
| 35X | Nov. 24, 1791 | P. Zacharie | Machine for cleaning or deepening docks or harbors | |
| 36X | Dec. 30, 1791 | W. Pollard | Machine for Spinning Cotton | spinner |
| 37X | Jan. 02, 1792 | B. Folger | Cleansing whale oil | |
| 38X | Jan. 28, 1792 | O. Herbert | Spinning and Twisting Thread | spinner |
| 39X | Feb. 23, 1792 | J. Bailey | Steam Jack | |
| 40X | Feb. 24, 1792 | D. Hartley | Hardening and Tempering Steel | blacksmith |
| 41X | Mar. 07, 1792 | D. Ridgeway | Making Bricks | brick maker |
| 42X | Mar. 28, 1792 | S. Green | Canvas conductor to be used when houses are on fire | |
| 43X | May 09, 1792 | R. Leslie, T. Kirk | Weaving of wire | weaver |
| 44X | May 09, 1792 | T. Farrington | Bark and wood sawing | reciprocating saws |
| 46X | Oct. 20, 1792 | S.G. Dorr | Raising and shearing the nap of cloth by a wheel of knives | |
| 47X | Oct. 23, 1792 | S. Hodge, J. Dorr | Handmill for picking of mill stones | miller |
| 48X | Jan. 26, 1793 | C. Batterman, J. Caldwell | Tobacco Manufacturing Machine | |
| 49X | Jan. 26, 1793 | J. Pope | Improvement in wind mills | |
| 50X | Jan. 26, 1793 | C. Colles | Manufacturing bricks | brick maker |
| 51X | Jan. 29, 1793 | S. Morey | New method of turning a spit | |
| 52X | Jan. 30, 1793 | R. Leslie | Double Pendulum for Ships | clockmaker |
| 53X | Jan. 30, 1793 | R. Leslie | Clock Pendulum | clockmaker |
| 54X | Jan. 30, 1793 | R. Leslie | Double Ppendulum | clockmaker |
| 56X | Feb. 01, 1793 | A. Kingsley | Manufacturing of bricks | brick maker |
| 57X | Feb. 02, 1793 | R. Leslie | Construction and tone of bells | |
| 59X | Mar. 13, 1793 | J. Williams, Jr. | Moulds for claying sugar | patternmaker |
| 60X | Apr. 11, 1793 | J. Carnes, Jr. | Improvement in paper moulds | patternmaker |
| 61X | Apr. 29, 1793 | E. Ryan | Furnace for pot and pearl ashes | |
| 63X | Jun. 11, 1793 | R. Heterick | Stove of cast iron | |
| 64X | Jul. 05, 1793 | J.S. Sampson | Applying and regulating the sails of ships and boats | shipwright |
| 65X | Aug. 17, 1793 | S. Brower | Manufacture of bricks and pantiles | brick maker |
| 66X | Dec. 02, 1793 | A. Babcock | Machines for propelling boats, vessels and carriages | |
| 67X | Dec. 31, 1793 | J. Clarke (Clark) | Machine to work in a current of water or other fluid | |
| 68X | Feb. 07, 1794 | T. Perkins | Manufacturing nails | |
| 69X | Feb. 14, 1794 | J. Davenport | Weaving and beating duck sail | weaver |
| 70X | Mar. 04, 1794 | J. Simpson | Improvement in distilling spirituous liquors | |
| 71X | Mar. 14, 1794 | Z. Cox | Round Saw | handsaws |
| 72X | Mar. 14, 1794 | E. Whitney | Ginning cotton | miller |
| 73X | Mar. 23, 1794 | B. Taylor | Mode of preventing the progress of fire | |
| 74X | Mar. 23, 1794 | J.G. Peerson | Machine for Cutting Nails | |
| 75X | Mar. 31, 1794 | J. Biddis | Improvement in manufacturing paper | |
| 76X | Apr. 12, 1794 | R. Robotham | Manufacturing of Mortar for Flooring Houses, etc. | stonemason |
| 77X | Apr. 25, 1794 | J.J. Staples, Jr. | Carriages to be Propelled by Mechanic Powers | carriage maker |
| 78X | Apr. 28, 1794 | W. Hodgson | Threshing Machine | miller |
| 79X | May 19, 1794 | J. Drake | Improvement in Bellows | blacksmith |
| 80X | Jun. 02, 1794 | R. Robotham | Manufacturing of Candles | chandler |
| 81X | Jun. 16, 1794 | G. Parkinson | Manufacturing cordage | |
| 82X | Jul. 19, 1794 | J. Markley | Grinding Bark | wood grinding machines |
| 83X | Jul. 29, 1794 | E. Rigg | Water working pumps | |
| 84X | Sep. 02, 1794 | A. Anderson | Improvement in a steam still | |
| 85X | Sep. 13, 1794 | B. Wynkoop | New mode of propelling vessels | |
| 86X | Sep. 24, 1794 | J. Fennel | Mode of making salt | |
| 87X | Oct. 29, 1794 | J. Hatheway | Improvement in hydraulics | |
| 88X | Nov. 05, 1794 | J. Wardrop | Thrashing Machine | miller |
| 89X | Nov. 25, 1794 | J. Kincaid | Improvement in stills | |
| 90X | Dec. 20, 1794 | A. Kingsley | Brick Manufacturing | brick maker |
| 91X | Jan. 15, 1795 | S. Mullikin | Hemp and flax breaking | |
| 92X | Jan. 16, 1795 | J. Perkins | Machine for cutting nails | |
| 93X | Jan. 31, 1795 | S. Kellogg | Improvement in shearing woolen and other cloths | |
| 95X | Mar. 25, 1795 | S. Morey | Improvement in Applying Steam | |
| 96X | May 25, 1795 | J. Youle | Construction of a caboose | |
| 97X | May 25, 1795 | J. Pittman | Manufacturing of cordage | rope maker |
| 98X | May 25, 1795 | D. Keller | Propelling boats | |
| 99X | Jun. 19, 1795 | W.P. Sprague | Propelling boats and vessels with horses | |
| 100X | Jun. 19, 1795 | B. Wynkoop | Nautical Ventilators | shipwright |
| 101X | Jun. 30, 1795 | J. Taylor | Worm still of Tinned Sheet Copper | tinsmith |
| 102X | Jan. 09, 1796 | J. Dickerson | Sawing and Polishing of Stones | stonemason |
| 103X | Jan. 15, 1796 | J. Byington | Manufacturing Nails | |
| 104X | Feb. 13, 1796 | J. Roberts, Jr. | Cleaning clover and other seed | miller |
| 105X | Feb. 16, 1796 | J. Eaton | Manufacturing of Seal Skins | leatherworker |
| 106X | Feb. 19, 1796 | E. Perkins | Removing pains by metallic points | |
| 107X | Apr. 11, 1796 | S. Morey | Raising Water by Wind | |
| 108X | Apr. 15, 1796 | J. Davis | Leather tanning | leatherworker |
| 109X | Apr. 15, 1796 | B. Tyler | Machine for Cleaning Wheat, etc. | miller |
| 112X | May 04, 1796 | P. Zacharie | Machine for making nails and brads | |
| 114X | May 12, 1796 | R. Dawson | Improvement in bolting cloths | |
| 115X | May 12, 1796 | H. Hodgen | Cotton gin | |
| 116X | May 27, 1796 | J.S. McLean | Improvement in piano fortes | music instrument maker |
| 117X | May 28, 1796 | O. Evans | Improvment in Burr Mill Stones | miller |
| 118X | May 31, 1796 | E. Backus | Steam engine and boiler | |
| 119X | Jul. 01, 1796 | L. McKechnie | Stays for removing distortions in the spine | |
| 120X | Jul. 02, 1796 | J.F. Mangin | Sawing and Polishing Marble and other Stones | stonemason |
| 121X | Oct. 17, 1796 | R. Grant | Machine for Scouring Rice and Other Grain | miller |
| 122X | Nov. 16, 1796 | G. James | Improvement in making salt | |
| 123X | Nov. 16, 1796 | E. Ryan | Improvement in manufacturing pot ash | |
| 125X | Nov. 16, 1796 | P. Cliff | Manufacturing Cut Nails | |
| 126X | Nov. 16, 1796 | I. Garretson | Machine for Heading and Cutting Nails | |
| 127X | Nov. 16, 1796 | A. Kinsley | Printing Press | printer |
| 128X | Nov. 16, 1796 | J. Stansfield | Splitting Sheep Skins | leatherworker |
| 129X | Nov. 16, 1796 | M.I. Brunel | Ruling Books and Paper | printer |
| 130X | Nov. 16, 1796 | T. Bourke | Pumps | plumber |
| 131X | Nov. 17, 1796 | W. Frobisher | Manufacturing pot ash | |
| 132X | Nov. 17, 1796 | C. Rentgen | Forging Bolts and Round Iron | |
| 133X | Nov. 17, 1796 | A. Whitmore | Loom for Weaving Cloth | weaver |
| 134X | Nov. 19, 1796 | A. Whitmore | Preambulator for Measuring a Ship's Way | shipwright |
| 135X | Nov. 19, 1796 | A. Whittemore | Machine for cutting nails | |
| 136X | Nov. 19, 1796 | J. Bigelow | Manufacturing Nails | |
| 137X | Dec. 12, 1796 | G. Chandlee | Cutting and Heading Nails | |
| 138X | Dec. 23, 1796 | T. Pasamore | Machine for cooking and boiling, called a conjurer | |
| 139X | Dec. 23, 1796 | D. French | Manufacturing Cut Nails | |
| 140X | Dec. 23, 1796 | D. French | Manufacturing Wrought Nails | |
| 141X | Dec. 23, 1796 | J. Byington | Heading Nails | |
| 142X | Dec. 23, 1796 | J. Frost | Heading Nails | |
| 143X | Dec. 23, 1796 | J. Deller | Separating Scoured Rice | miller |
| 144X | Dec. 23, 1796 | R. Watkins | Ginning Cotton | miller |
| 145X | Dec. 23, 1796 | J. Murray | Ginning Cotton | miller |
| 146X | Jan. 06, 1797 | J. Nazro | Improvement in making soap | |
| 148X | Jan. 21, 1797 | C.W. Peale | Improvement in bridges | |
| 149X | Feb. 16, 1797 | J. Spence | Cutting and Heading Nails | |
| 150X | Feb. 16, 1797 | J.F. Mangin | Cutting and Polsihing Marble | stonemason |
| 151X | Feb. 20, 1797 | J. McCallmont | Stoves | |
| 152X | Feb. 20, 1797 | S. Mullikin | Scouring or Skinning Rice | miller |
| 153X | Feb. 24, 1797 | R. Stuart | Improvement in chimneys | household tools |
| 154X | Feb. 24, 1797 | J. Fowler | Improvement in bridges | |
| 155X | Feb. 24, 1797 | J. Kersey | Heading and Cutting Nails | |
| 157X | Mar. 11, 1797 | T. Hirsh | Stoves | |
| 158X | Mar. 11, 1797 | W. Booker | Machine for Thrashing Wheat, etc. | miller |
| 159X | Mar. 18, 1797 | S. Betts | Tide Water Wheel | |
| 160X | Mar. 28, 1797 | N. Briggs | Improvement in washing clothes | |
| 161X | Mar. 29, 1797 | C. Wheaton | Stoves | |
| 162X | Apr. 13, 1797 | J. Kersey | Fire engines | |
| 163X | Apr. 13, 1797 | C. Leach | Boring Pumps | drilling and boring |
| 165X | Apr. 28, 1797 | J. Starr | Propelling Boats and Vessels | shipwright |
| 166X | Apr. 29, 1797 | W. Faris | Propelling Carriages | carriage maker |
| 168X | May 29, 1797 | I. Garretson | Constructing and Rigging Vessels | shipwright |
| 169X | Jun. 03, 1797 | J. Stickney | Improvement in bridges | |
| 170X | Jun. 05, 1797 | A. Whittemore | Machine for the Manufacture of Sheet Cards | weaver |
| 171X | Jun. 08, 1797 | D. Grieve | Looms | weaver |
| 172X | Jun. 23, 1797 | W. Burt | Raising a nap on cloth | |
| 173X | Jun. 26, 1797 | B. Seymour | Rolling Iron | steel maker |
| 174X | Jun. 26, 1797 | B. Seymour | Staightening Hoops of Iron | blacksmith |
| 175X | Jun. 26, 1797 | B. Wynkoop | Pendulous bellows, for pumping ships | shipwright |
| 176X | Jun. 26, 1797 | J.S. Sampson | Making Candles | chandler |
| 177X | Jun. 26, 1797 | C. Newbold | Ploughs (cast iron plough) | |
| 178X | Jun. 28, 1797 | T. Bruff, Sr. | Improvement in extracting teeth | |
| 180X | Jul. 08, 1797 | B. Jarvis | Making Shingles and Boards | shingle machines |
| 181X | Jul. 11, 1797 | J. Hawkins | Brick Machine | brick maker |
| 182X | Aug. 12, 1797 | A. Kinsley | Improvement in cutting tobacco | |
| 183X | Aug. 12, 1797 | J. Nevill | Heading and cutting nails | |
| 184X | Aug. 18, 1797 | H. Dulhner | Saw Mill | sawmills |
| 185X | Aug. 24, 1797 | J.W. Curtiss | Mills | miller |
| 186X | Nov. 16, 1797 | C.W. Peale | Improvement in fire places | household tools |
| 187X | Nov. 16, 1797 | T. Stickney | Improvement in saddles | |
| 189X | Nov. 16, 1797 | R.R. Eliot | Grain Thresher | miller |
| 190X | Nov. 17, 1797 | E. Terry | Clocks, Time Keepers, and Watches | clockmaker |
| 191X | Nov. 20, 1797 | S. Parsons | Making Window Sashes | window making machines |
| 192X | Nov. 21, 1797 | J. Martin | Machines for propelling boats, etc. | |
| 193X | Dec. 10, 1797 | E. Ring | Spiral wheel for working in the tide water | |
| 194X | Dec. 10, 1797 | W. Payne | Soap stone stove | household tools |
| 195X | Dec. 17, 1797 | T. Palmer | Improvement in bridges | |
| 196X | Dec. 19, 1797 | L. Fling | Making Nails | |
| 197X | Jan. 08, 1798 | N. Read | Machine for cutting and heading nails | |
| 198X | Jan. 08, 1798 | T. Bruff, Sr. | Coffee grinding | miller |
| 199X | Jan. 24, 1798 | J. Dixey | Machine for printing paper, leather, etc. | printer |
| 200X | Feb. 22, 1798 | I. Tryon | Cutting and pointing comb teeth | comb making machines |
| 201X | Mar. 15, 1798 | C. Holden | Improvement in wind mills | |
| 202X | Mar. 21, 1798 | E. Ormsbee | Screw engine for throwing water | |
| 203X | Mar. 22, 1798 | S. Blydenburg | Candle Machine | chandler |
| 204X | Mar. 24, 1798 | R. McKean | Steam saw mill | reciprocating sawmills |
| 205X | Mar. 30, 1798 | A. Clark | Saw Mill | sawmills |
| 206X | Apr. 10, 1798 | J. Manning | Improvement in raising water from fountains | |
| 207X | Apr. 27, 1798 | J. Martin | Regulation of tide action on spiral wheel | |
| 208X | Apr. 27, 1798 | M.J. Brunel | Raising Water | |
| 209X | May 18, 1798 | I. Lazell | Machine for Removing Rocks, etc. | |
| 210X | May 31, 1798 | J. Smallman, N.J. Roosevelt | Double Steam Engine | |
| 211X | Jun. 02, 1798 | T.C. Martin | Machine for thrashing wheat etc. | miller |
| 212X | Jun. 02, 1798 | C. Stondinger | Machine for propelling vessels | |
| 214X | Jun. 07, 1798 | W. Brewster | Water wheel flume for large streams | |
| 215X | Jun. 07, 1798 | J. Hunt | Oblique pump | plumber |
| 216X | Jun. 11, 1798 | J. Love | Tallow lamp | household tools |
| 217X | Jul. 14, 1798 | W. Lane, J.W. Godfrey | Improvement in stoves | household tools |
| 218X | Dec. 14, 1798 | R. Peale | Method of preserving vessels from worms | |
| 220X | Dec. 14, 1798 | D. Wilkinson | Machine for cutting screws | |
| 221X | Dec. 14, 1798 | C. Austin | Improvement in manufacturing paper | |
| 222X | Dec. 14, 1798 | M. Reeve | Pipe and pump for conveying water | plumber |
| 223X | Dec. 14, 1798 | S. Colver | Machine for cleaning docks and harbors | |
| 224X | Dec. 14, 1798 | S. Colver | Machine for heaving down vessels, raising weights, etc. | |
| 225X | Jan. 03, 1799 | T. Thompson | Method of regulating wind mills | |
| 226X | Jan. 04, 1799 | S. Hart | Machine for making nails, etc. | |
| 227X | Jan. 10, 1799 | J. Huntley | Machine for raising water | |
| 228X | Jan. 17, 1799 | M.I. Brunel | Machine for writing with two pens | |
| 229X | Jan. 24, 1799 | J. Sears | Machine for manufacturing salt | |
| 230X | Jan. 24, 1799 | H. Abbott | Improvement in a coal stove | |
| 231X | Jan. 25, 1799 | E. Spooner | Machine for cutting corn, beans, etc. | |
| 232X | Jan. 25, 1799 | E. Spooner | Machine for planting corn, beans, etc. | |
| 233X | Feb. 14, 1799 | E. Reed | Horizontal water wheel | |
| 234X | Feb. 14, 1799 | B. Dearborn | Improvement in steelyards | |
| 235X | Feb. 14, 1799 | B. Duval | Preparation of steel for cutting glass | steel maker |
| 236X | Feb. 14, 1799 | J. Perkins | Making nails | |
| 237X | Feb. 14, 1799 | B. Tyler | Flax and hemp mill | miller |
| 238X | Feb. 26, 1799 | W. Hancock | Casting iron | steel maker |
| 239X | Mar. 02, 1799 | C. Whiting | Extracting oil from cotton seeds | |
| 240X | Mar. 16, 1799 | J. Shotwell | Sharpening axes | |
| 242X | Mar. 21, 1799 | J. Shackford | Improvement in propelling boats | |
| 243X | Mar. 27, 1799 | I. Sanford | Machine for dressing cloth | |
| 244X | Mar. 27, 1799 | S. Morey | Obtaining force from water by steam | |
| 245X | Apr. 12, 1799 | P. Pratt | Machine for making combs | comb making machines |
| 246X | Apr. 24, 1799 | S. Morey | Improvement on his water engine | |
| 247X | Apr. 30, 1799 | B. Dearborn | Double centered mill for wind or water | |
| 248X | May 08, 1799 | A.W. Duty | New Method to Cut Clay for Tile | |
| 249X | May 17, 1799 | W. Faris | Machine for raising water | |
| 250X | May 27, 1799 | C. Gould | Machine to keep ship's distance at sea (reckoning) | |
| 251X | Jun. 26, 1799 | M. Wigglesworth | Making Ropes | rope maker |
| 253X | Jun. 26, 1799 | E. Weld | Improvement in washing clothes | |
| 254X | Aug. 05, 1799 | J. Long | Napping Hats | milliner |
| 256X | Aug. 30, 1799 | S.E. Hamlin | Capstan fire engine | |
| 258X | Oct. 28, 1799 | A. Kinsley | Universal pump | plumber |
| 259X | Oct. 28, 1799 | R.R. Livingston | Manufacturing of paper | |
| 260X | Nov. 05, 1799 | D. Keller | Boat for descending rapid streams | |
| 261X | Nov. 29, 1799 | J. Stickney | Pumps for ships, mines, etc. | |
| 262X | Dec. 02, 1799 | T. Payne | Saw Mill | sawmills |
| 264X | Dec. 14, 1799 | A. Wilder | Runners and Bows for Sleighs and Sledges | wagon maker |
| 265X | Dec. 16, 1799 | H. Chase | Mills | miller |
| 266X | Dec. 24, 1799 | J. Pittman | Effeminate Ropery for Spinning Rope Yarn | rope maker |
| 267X | Jan. 16, 1800 | O. Evans | Improvement on stoves and grates | |
| 268X | Feb. 04, 1800 | S. Gorham | Machine for spinning rope, yarn and twine | rope maker |
| 269X | Feb. 04, 1800 | S. Constant | Composition to preserve wood, brick, etc. | carpenter |
| 270X | Feb. 04, 1800 | J.G. Gebhard | Extracting oil from palma christi | |
| 271X | Feb. 07, 1800 | B. Bolitho | Machine for pounding rice, gunpowder, etc. | miller |
| 272X | Feb. 07, 1800 | W. Shotwell | Metal Boxes for Wood or Iron to TurnI In | wheelwright |
| 273X | Feb. 12, 1800 | J.J. Hawkins | Improvement in piano fortes | music instrument maker |
| 274X | Feb. 12, 1800 | H. Killey, II | Method of covering salt vats from the weather | |
| 275X | Feb. 12, 1800 | P. Lyon | Engine for throwing water | |
| 276X | Feb. 12, 1800 | N. Ladd | Extracting Essence of Sumack, Fera, etc for Tanning | leatherworker |
| 277X | Feb. 20, 1800 | J. Cox | Raising or Lifting Hides in Tanning | leatherworker |
| 278X | Feb. 20, 1800 | B. Tyler | Grist Mill | miller |
| 280X | Mar. 15, 1800 | W. Harris | Lathe or loom for weaving | weaver |
| 281X | Apr. 07, 1800 | C. Hoyt, Jr. | Machine for manufacturing sumack | |
| 282X | Apr. 10, 1800 | W. Hottensteen | Coach Collars | carriage maker |
| 283X | Apr. 10, 1800 | P. Walker | Stop Cock | plumber |
| 284X | Apr. 10, 1800 | D. Howard | Manufacturing of Boots and Shoes | cobbler |
| 285X | May 06, 1800 | S. Stone | Elastic truss for ruptures | |
| 286X | May 06, 1800 | J. Biddis | Engine for reducing silk, cotton, worsted, cloth, and to their original state to be manufactured | |
| 287X | May 08, 1800 | S. Jocelin | Time Keeper | clockmaker |
| 288X | May 14, 1800 | J. Brown | Construction of Ships and Vessels | shipwright |
| 289X | May 15, 1800 | G. Hadfield | Machine for making bricks and tiles | brick maker |
| 291X | May 19, 1800 | T.O. Harrison | Machine for Splitting Hides and Skins | leatherworker |
| 292X | May 19, 1800 | R. Smith | Mould board | molders |
| 293X | May 24, 1800 | W. Shotwell | Cogs for pullies | |
| 294X | Jun. 28, 1800 | P. Lorillard | Machine for cutting tobacco | |
| 295X | Jul. 10, 1800 | J. Deneale, Jr. | Kiln for drying grain | |
| 297X | Aug. 22, 1800 | H. Butler | Cooking Machine | |
| 298X | Aug. 23, 1800 | F. Young | Machine for cutting and heading nails | |
| 299X | Aug. 23, 1800 | J. Kilborn | Bark Mill | bark processing machines |
| 300X | Aug. 25, 1800 | G.N. Philips, D. Cooly, Jr. | Improvement in chimneys | |
| 301X | Sep. 17, 1800 | E. Weld | Clothes Washer | |
| 302X | Oct. 24, 1800 | R. Mansfield | Brick Machine | brick maker |
| 303X | Oct. 24, 1800 | A. Brookfield | Raising water for mills | |
| 304X | Oct. 24, 1800 | J.J. Hawkins | Improvement in musical instruments | |
| 305X | Oct. 24, 1800 | J. Grout, Jr. | Telegraph | |
| 306X | Nov. 17, 1800 | S. Murray | Steam Engine | |
| 308X | Jan. 17, 1801 | J. Canon | Machine for breaking flax | spinner |
| 310X | Jan. 22, 1801 | E. Whiting | Cotton gin | miller |
| 311X | Jan. 26, 1801 | H. Guest | Sheathing vessels | shipwright |
| 313X | Jan. 26, 1801 | A. Anderson | Condensor for heating wash in distilling | |
| 314X | Jan. 29, 1801 | J. Sharples | Giving motion to wheels within cylinders | |
| 315X | Feb. 12, 1801 | W. Henderson | Improvement in the construction of stoves | |
| 316X | Feb. 12, 1801 | B. Henfrey, T. Bedwell | Evaporating Machine | |
| 317X | Feb. 20, 1801 | M. Garber | Machine for making and heading nails | |
| 318X | Feb. 20, 1801 | B. Landon | Hydraulic machine for raising water | |
| 319X | Feb. 20, 1801 | D. Grieve | Improvement in boats to ascend rivers | |
| 320X | Mar. 02, 1801 | B. Henfrey | Mode of increasing evaporation for the purpose of distilling | |
| 321X | Mar. 16, 1801 | R. Weems | Boring machine for posts | drilling and boring |
| 322X | Mar. 16, 1801 | W. Stillman | Cutting veneers | veneer machines |
| 323X | Mar. 24, 1801 | J. Strong | Hydraulic Engine | |
| 324X | Mar. 24, 1801 | I. Hatch | Mode of making and discharging chain and cleaver shot | gunsmith |
| 325X | May 01, 1801 | N. Kent | Nails cut from iron hoops and rendered touch | |
| 326X | May 01, 1801 | D. Ellicot | Screw and reel stove grain drying machine | miller |
| 327X | Jun. 09, 1801 | S. Thayer | Impellent pump | plumber |
| 328X | Jun. 09, 1801 | J. Reed | Nails milled out of heated rods | |
| 329X | Jun. 12, 1801 | S. Downing | Extract of Bark for Dyeing | bark processing machines |
| 330X | Jun. 13, 1801 | J. Eveleth | Forcing pump | plumber |
| 331X | Jul. 16, 1801 | C.W. Peale | Portable vapor bath | |
| 332X | Jul. 16, 1801 | H. Guest | Mode of Infusing Oil into Leather | leatherworker |
| 333X | Jul. 17, 1801 | J. Ladd | Beaming Machine | |
| 334X | Jul. 23, 1801 | C. Green | Mill for Grinding Painters' Colors etc. | miller |
| 335X | Aug. 20, 1801 | C. Hoxie | Machine for grain separated from straw | miller |
| 337X | Aug. 25, 1801 | W. Palmer | Machine for raising water | |
| 338X | Sep. 02, 1801 | G.F. Saltonstall | Metallic Gin Rollers for Cleaning Cotton | miller |
| 340X | Sep. 15, 1801 | J. Sharples | Mechanical powers for the use of wind mills | |
| 343X | Sep. 21, 1801 | S. Wallis | Moveable and suspended seal and beam | |
| 344X | Oct. 10, 1801 | R. Robotham | Air pump ventilator for ships, mines, etc. | |
| 345X | Oct. 10, 1801 | R. Robotham | Machine for Ruling Paper, etc. | printer |
| 346X | Oct. 13, 1801 | J. Poole | Syphonic steam machine | |
| 347X | Oct. 28, 1801 | M. Krafft | Construction of stills | |
| 348X | Nov. 05, 1801 | W. Leslie | Machine for heading and cutting nails | |
| 349X | Dec. 16, 1801 | J.A. Morton | Wind Mill | |
| 350X | Dec. 22, 1801 | G. Clymer | Ship's Pump | shipwright |
| 353X | Jan. 20, 1802 | R. Hathaway | Improvement in a wind mill | |
| 354X | Feb. 08, 1802 | S. Willard | Time Piece | clockmaker |
| 355X | Feb. 20, 1802 | I. Baker | Machine for churning | |
| 356X | Feb. 23, 1802 | T.B. Whitlock | Boxes for Carriages | wheelwright |
| 357X | Feb. 23, 1802 | R. Claiborne | Improvement in paddles for propelling boats | |
| 359X | Mar. 17, 1802 | J. Warrell | Machine for cutting and grinding bark | bark processing machines |
| 361X | Mar. 27, 1802 | J.W. Holly (Holley) | Improvement in a grist mill | miller |
| 362X | Apr. 01, 1802 | M. Coates | Turning the log in saw mills | reciprocating sawmills |
| 363X | Apr. 01, 1802 | E. Whiting | Block making gang lathe | pattern lathes |
| 364X | Apr. 07, 1802 | S. DeMontmollin, W. Bell | Cotton Gin | |
| 365X | Apr. 10, 1802 | J. Pierce | Machine for churning | |
| 367X | Apr. 19, 1802 | S. Downing | Extracting essence of bark for dying | bark processing machines |
| 368X | Apr. 22, 1802 | A. Spicer | Machine for cleaning clover seeds | miller |
| 369X | Apr. 28, 1802 | L. Richardson, H. Richardson, Jr., H. Richardson | Saw Mill | sawmills |
| 370X | May 04, 1802 | H. Abbott | Rolling Iron Round, etc. | |
| 371X | May 04, 1802 | H. Abbott | Casting Close Stoves | patternmaker |
| 374X | May 12, 1802 | L. Du Pre | Scientific steelyards | steel maker |
| 375X | May 12, 1802 | B. Ellicott | Machine for manufacturing salt | |
| 376X | May 12, 1802 | A. Law | New Plan for Printing Music | printer |
| 377X | May 14, 1802 | N. Young | Machine for cutting fur for the use of hatters | milliner |
| 378X | Jul. 06, 1802 | E. West | Machine for cutting nails | |
| 379X | Jul. 06, 1802 | E. West | Machine for heading and cutting nails | |
| 380X | Jul. 06, 1802 | E. West | Gun Lock | gunsmith |
| 381X | Jul. 06, 1802 | E. West | Steam Boat | shipwright |
| 382X | Jul. 09, 1802 | J. Perkins | Pump | plumber |
| 383X | Jul. 09, 1802 | S. Stillwell | Machine for cleaning wheat | miller |
| 384X | Jul. 13, 1802 | J. Greenleaf | Machine for cleaning out docks | |
| 385X | Jul. 15, 1802 | J. Reed | Method of Rolling Out Iron for Nails | |
| 386X | Jul. 17, 1802 | E. Miller | Machine for making brick | brick maker |
| 387X | Jul. 19, 1802 | E. Miller | Machine for thrashing and cleaning wheat | miller |
| 388X | Jul. 19, 1802 | M. Miller | Machine for cleaning clover seeds | miller |
| 389X | Jul. 22, 1802 | J. Pope | Machine for thrashing grain | miller |
| 391X | Aug. 02, 1802 | N.H. Forbes | Machine for making nails | |
| 392X | Aug. 17, 1802 | J. Templeton | Trigonometrical quadrant | |
| 396X | Sep. 03, 1802 | M.C. Groves | Astronomical Quadrant | |
| 397X | Sep. 04, 1802 | B.S. Walcott | Machine for heading nails | |
| 399X | Sep. 13, 1802 | J. Richardson | Evaporating furnace | |
| 400X | Sep. 24, 1802 | J. Idler | Cotton Press | |
| 401X | Oct. 09, 1802 | S. Briggs, Jr. | Steam Engine | |
| 402X | Oct. 14, 1802 | J.B. Aveilhe | Machine for raising water (perpetual motion) | |
| 403X | Nov. 29, 1802 | A.W. Chickering | Splitting Skins | leatherworker |
| 405X | Dec. 03, 1802 | J. Gardiner | Improvement in erecting dry docks | |
| 406X | Dec. 13, 1802 | W. Caruthers | Machine for making nails | |
| 407X | Dec. 14, 1802 | J. Cowan | Construction of mill wheels | miller |
| 408X | Dec. 15, 1802 | J. Staples | Improvement in stills | |
| 412X | Dec. 22, 1802 | J. Nichols, E. Chapman, D. Pettibone | Manner of Welding Cast Iron to Steel | blacksmith |
| 413X | Dec. 23, 1802 | A.D. Marentille | Insubmersible boat | |
| 415X | Dec. 31, 1802 | W. Palmer | Machine for sawing stone and marble | stonemason |
| 416X | Jan. 01, 1803 | S. Rouse | Caboose of a vessel for distilling fresh from salt water | |
| 417X | Jan. 04, 1803 | G.F. Saltonstall | Saw mill for cleaning cotton | miller |
| 418X | Jan. 07, 1803 | C. Hoxie | Machine for hulling rice | miller |
| 419X | Jan. 27, 1803 | T. Moore | Refrigerator for domestic uses | |
| 420X | Feb. 01, 1803 | J. Moffat | Boiler for accelerating the evaporation of liquids | |
| 422X | Feb. 01, 1803 | B. Cooley | Machine for raising water | |
| 425X | Feb. 14, 1803 | M. Coates | Machine for paring applies | |
| 426X | Feb. 14, 1803 | A. Stowel | Auger Gage | auger bits |
| 427X | Feb. 14, 1803 | O. Bartlett, G. Bartlett, O. Bartlett | Machine for making hot wrought nails | |
| 428X | Mar. 07, 1803 | J. DeMontmollin, W. Bell | Roller cotton gin | miller |
| 430X | Mar. 07, 1803 | S. Bent | Wheel to turn under water | |
| 431X | Mar. 16, 1803 | J.B. Aveilhe | Horizontal wind mill | |
| 432X | Mar. 18, 1803 | A.D. Marentille | Wreck raft | |
| 433X | Mar. 18, 1803 | A.D. Marentille | Sea sitting chair | |
| 434X | Mar. 18, 1803 | J. Staples, Jr. | Power obtained by the rising and falling of the tide to give motion to all kinds of machinery | |
| 436X | Mar. 21, 1803 | J. Cottle | Machine for Cleaning Clover Seed | miller |
| 437X | Mar. 21, 1803 | D.F. Launy | Improvement in time pieces | clockmaker |
| 440X | Mar. 28, 1803 | E. Marquam | Improved house fan | |
| 442X | Apr. 04, 1803 | J. Richardson | Improvement in his evaporating furnace | |
| 443X | Apr. 06, 1803 | W. How | Improvement in a cooler or condensor of vapor | |
| 444X | Apr. 11, 1803 | J. Stevens | Improvement in producing steam | |
| 445X | Apr. 22, 1803 | D. Brewer | Ruling Machine | |
| 446X | Apr. 27, 1803 | B. Platt | Improvement in heating and boiling water | |
| 447X | Apr. 27, 1803 | E. Beebe | Mode of Constructing Vessels with Crooked Keels | shipwright |
| 448X | May 04, 1803 | M. Barney | Machine for Deepening Channels | |
| 449X | May 13, 1803 | W. Hopkins | Ship building | shipwright |
| 450X | May 14, 1803 | G.F. Saltonstall | Rolling machine for cleaning cotton | miller |
| 452X | May 17, 1803 | J.T. Hawkins, R. French | Cutting grain and grass | |
| 453X | May 17, 1803 | J.J. Hawkins | Pentegraph and parallel ruler | parallel rules |
| 455X | May 19, 1803 | J. Clark | Machine for pumping | plumber |
| 456X | May 25, 1803 | J.W. Godfrey | Working bellows for a furnace or forge | blacksmith |
| 458X | Jun. 04, 1803 | J. Biddis, L.J. Kilborn | Improvement in the method of distilling or making alcohol | |
| 460X | Jun. 10, 1803 | D. Morse | Machine for Making Hinges | |
| 462X | Jun. 15, 1803 | R. Giles, R. Graves, S. Morey | Steam Engine | |
| 464X | Jun. 23, 1803 | J. Warring, W. Keeler | Rocking churn | |
| 465X | Jun. 25, 1803 | L. Stanley | Machine for shearing woolen and other cloths | |
| 466X | Jun. 28, 1803 | B. Standring | Machine for breaking and carding wool | spinner |
| 467X | Jun. 28, 1803 | N. Young | Machine for Pulling Hair Off Skins | |
| 468X | Jun. 28, 1803 | W. Ashbridge | Improvement in the construction of iron cabooses | |
| 469X | Jun. 30, 1803 | R. Heterick | Improvement called the Columbia fireplace | |
| 472X | Jul. 20, 1803 | E. Evans, J. Clark | Machine for packing goods | |
| 475X | Jul. 25, 1803 | D. French | Machine for splitting and shaving shingles | shingle machines |
| 476X | Jul. 27, 1803 | G. Keyser | Powder Mill | |
| 477X | Jul. 28, 1803 | T. Kirk | Machine for separating clover from the pod | miller |
| 478X | Aug. 04, 1803 | L. Granty (Geanty) | Improvement in the construction of stills | |
| 479X | Aug. 24, 1803 | J.B. Aveilhe | Machine for boring holes in rocks under water | |
| 480X | Aug. 25, 1803 | G. Youle | Improvement in a water cock | |
| 482X | Sep. 13, 1803 | H. Betts | Wheel Press | |
| 485X | Oct. 18, 1803 | L. Ruggles | Wrought Nail Machine | |
| 486X | Oct. 19, 1803 | J.T. Turner | Thresher | miller |
| 488X | Oct. 25, 1803 | P. Pilsbury | Corn Sheller | miller |
| 489X | Oct. 28, 1803 | W. Thornton | Improvement in boilers, also working stills with the same | |
| 490X | Oct. 31, 1803 | S. Goodwin | Horizontal draft wind mill | |
| 493X | Nov. 15, 1803 | E. Alden | Pump | plumber |
| 494X | Nov. 16, 1803 | A. Mittor | Spinning Wheel | spinner |
| 495X | Nov. 19, 1803 | A.E. Paine | Wind Mill | |
| 497X | Nov. 24, 1803 | W. Bell | Cotton Gin | miller |
| 498X | Nov. 25, 1803 | W. Bell | Improvement in propelling boats for inland navigation | |
| 499X | Nov. 25, 1803 | W. Bell | Wind Mill | |
| 500X | Nov. 30, 1803 | J. Fairbanks | Cylindric ruler for ruling paper | rules |
| 501X | Dec. 03, 1803 | J. Cist | Improvement in grinding painters' colors, printers' ink, etc. | printer |
| 502X | Dec. 06, 1803 | J. Eve | Cotton Gin | miller |
| 503X | Dec. 06, 1803 | P. Earl | Twilling Machine for Pricking Leather for Cards | leatherworker |
| 504X | Dec. 06, 1803 | S. Stewart | Fire Engine | |
| 505X | Dec. 07, 1803 | M. Otiss, M. Rogers | Nail Machine | |
| 507X | Dec. 16, 1803 | E. Richardson | Improvement in still heads and condensors | |
| 508X | Dec. 16, 1803 | J. Elgar | Nail Machine | |
| 509X | Dec. 21, 1803 | D. Buckman | Thresher | miller |
| 510X | Dec. 26, 1803 | J. Beverly | Hydro mechanical press | |
| 513X | Jan. 05, 1804 | P.W. Miller, N. Miller | Brick Machine | brick maker |
| 514X | Jan. 19, 1804 | L. Beatty | Improvement in stills or boilers | |
| 516X | Jan. 25, 1804 | T. Benger | Prep. of quercitron (black oak bark) for export or home use | bark processing machines |
| 517X | Jan. 30, 1804 | W. Wigton | Improvement in the construction of stills and the process of distilling spirits | |
| 518X | Feb. 14, 1804 | O. Evans | Grinding Mill | miller |
| 519X | Feb. 14, 1804 | O. Evans | Steam Engine | |
| 520X | Feb. 17, 1804 | J. Staples, Jr. | Wind & Water Wheel | |
| 522X | Feb. 21, 1804 | T. Barnett | Thresher | miller |
| 523X | Feb. 21, 1804 | T. Pierce | Smut Mill | miller |
| 525X | Feb. 27, 1804 | W.B. Dyer | Spinning Wheel | spinner |
| 526X | Feb. 27, 1804 | J. Worrell | Clover Huller | miller |
| 527X | Feb. 29, 1804 | D.S. Dean | Cloth washing machine | |
| 528X | Mar. 05, 1804 | D.M. Miller | Pump | plumber |
| 532X | Mar. 16, 1804 | M. Smith | Machine for watering cattle | |
| 534X | Mar. 19, 1804 | A. Frost | Machine for preparing tow for paper | printer |
| 535X | Mar. 19, 1804 | B. Tyler | Wry fly applied to mills | |
| 536X | Mar. 23, 1804 | J. Williams | Inclined plane, statical wheel | |
| 537X | Mar. 24, 1804 | G.W. Robinson | Button Machine | |
| 538X | Mar. 24, 1804 | A. Hunn | Machine for the improvement of navigation | shipwright |
| 539X | Mar. 31, 1804 | J. Naylor | Improved still and boiler | |
| 540X | Mar. 31, 1804 | P. Daniel | Mode of making shot | gunsmith |
| 541X | Apr. 12, 1804 | O. Robert | Machine for Breaking and Cleaning Flax and Hemp | spinner |
| 542X | Apr. 14, 1804 | E. Parsons, C. Whiting | Mode of working sheet tin | tinsmith |
| 544X | Apr. 17, 1804 | M. Garber | Nail Machine | |
| 545X | Apr. 17, 1804 | J.J. Girand | Double steam bath still | |
| 546X | Apr. 24, 1804 | P. Gottry | Machine for Cleaning Flax Seed | |
| 547X | Apr. 30, 1804 | M. Withers | Clover Huller | miller |
| 548X | Apr. 30, 1804 | E. Evans, M. Coates | Machine for cutting straw and hay | |
| 549X | May 01, 1804 | T. Langstroth | Paper Mill | |
| 550X | May 01, 1804 | J. Stickney | Pump | plumber |
| 551X | May 03, 1804 | S. Houston | Thresher | miller |
| 552X | May 08, 1804 | L. Stevens | Churn | |
| 553X | May 08, 1804 | L. Stevens | Corn Sheller | miller |
| 554X | May 10, 1804 | J.D. Staniford, Jr., A.D. Allen | Improvement of the lantern | |
| 555X | May 10, 1804 | A.D. Allen | Varnish for writing tablets | |
| 556X | May 10, 1804 | A.D. Allen | Plane for Making Bonnets | splint planes |
| 557X | May 12, 1804 | E. Crafts, Jr. | Furnace for making pot and pearl ashes with the manner of using and the materials of which the same is composed | |
| 558X | May 16, 1804 | E. Weld | Machine for making salt | |
| 559X | May 17, 1804 | M. McJames, M. Simon | Cotton Cleaner | miller |
| 560X | Jun. 08, 1804 | M. French, M. Allison | Nail Machine | |
| 562X | Jun. 30, 1804 | W. Tunstall | Machines for clearing grain from straw | |
| 563X | Jul. 07, 1804 | B. Folger | Raising of water | plumber |
| 564X | Jul. 12, 1804 | L. Osborn | Fulling Mill | miller |
| 565X | Jul. 12, 1804 | J. Deaver | Plow | |
| 566X | Jul. 12, 1804 | C. Hoxie | Auger | auger bits |
| 568X | Aug. 10, 1804 | C. Veltenair | Metallic Grinder or Hone | grinders |
| 569X | Aug. 21, 1804 | N. Boureau | Nail Machine | |
| 570X | Aug. 28, 1804 | W. Harrington | Water Elevator | |
| 571X | Aug. 29, 1804 | H. Betts | Windlass | |
| 572X | Sep. 05, 1804 | E. Kelsey, J. Roberts, A.D. Allen | Machine for Cutting Chips for Chip Hats | milliner |
| 573X | Sep. 14, 1804 | E. Kent | Crushing Plaster Mill | miller |
| 575X | Sep. 20, 1804 | R. Weems | Wind Mill | |
| 576X | Sep. 29, 1804 | J. Bolton, Jr. | Wagons or carriage to be worked by hand | |
| 578X | Oct. 04, 1804 | A. Taylor | Pump | plumber |
| 581X | Oct. 29, 1804 | B. Dearborn | Improvement in candlesticks | chandler |
| 582X | Nov. 01, 1804 | L. Folger | Machine for breaking dough | |
| 583X | Nov. 01, 1804 | T.M. Corby, D. McMullen | Machine for cooling and filtering water etc. | |
| 586X | Nov. 20, 1804 | J. Deneale, Jr. | Thrashing machine | miller |
| 587X | Nov. 23, 1804 | E.I. Du Pont De Nemours | Machine for Granulating Gun Powder | gunsmith |
| 588X | Nov. 27, 1804 | J. White | Oil Press | |
| 590X | Dec. 22, 1804 | F.W. Geysenhayner | Nail Machine | |
| 591X | Dec. 26, 1804 | J.W. Stanton | Wind Mill | |
| 594X | Dec. 31, 1804 | N. Fobes (Forbes) | Machine for Boring Gun Barrels | gunsmith |
| 597X | May 01, 1805 | I. Kimball | Nail Machine | |
| 598X | May 02, 1805 | J. Copes | Grist Mill | miller |
