| Patents for James Watt |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
| | GB-176,900,913 | Jan. 05, 1769 | J. Watt | A Method of Lessening the Consumption of Steam in Steam Engines |
| | GB-178,001,244 | Feb. 14, 1780 | J. Watt | Method of copying letters |
| | GB-178,101,306 | Oct. 25, 1781 | J. Watt | Converting Reciprocating Motion of Steam or Fire Engines to Provide a Rotating Motion |
 | GB-178,201,321 | Mar. 12, 1782 | J. Watt | Improvements on Steam or Fire Engines for Raising Water and Other Mechanical Purposes |
| | GB-178,401,432 | Apr. 28, 1784 | J. Watt | Improvements on Steam or Fire Engines-Three Bar Motion and Steam Carriage |
| | GB-178,501,485 | Jun. 14, 1785 | J. Watt | Improved furnaces or fireplaces |
| | 227,460 | May 11, 1880 | J. Watt | Steam-Hammers |
 | 510,753 | Dec. 12, 1893 | A.R. Woodyatt | Lawn-mower |
