| All Patents in class 123/531 |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 153,952 | Aug. 11, 1874 | L.P. Hawes | Gas Carbureting Machines | carburetors |
| 225,778 | Mar. 23, 1880 | W. Hees, W. Wittig | Gas-Engine | gas and gasoline engines |
| 302,045 | Jul. 15, 1884 | J. Spiel | Gas Engine | gas and gasoline engines |
| 399,348 | Mar. 12, 1889 | G.M. Richards | Hydrocarbon Engine | internal combustion engines |
| 408,460 | Aug. 06, 1889 | E. Captaine | Atomizer for Petroleum Engines | carburetors |
| 504,723 | Sep. 12, 1893 | A. Gray | Hydrocarbon Engine | |
| 542,410 | Jul. 09, 1895 | S. Griffin | Liquid Hydrocarbon Motor | internal combustion engines |
| 553,460 | Jan. 21, 1896 | W.W. Grant | Gas or Vapor Engine | |
| 569,564 | Oct. 13, 1896 | F.C. Olin | Gas Engine | internal combustion engines |
| 574,535 | Jan. 05, 1897 | C.L. Grohmann | Gas Engine | gas and gasoline engines |
| 583,982 | Jun. 08, 1897 | W.F. Davis | Gasolene and Gas Engine | |
| 933,325 | Sep. 07, 1909 | N. McCarty | Fuel Feeder for Internal Combustion Engines | fuel pumps |
| 1,117,738 | Nov. 17, 1914 | A. Winton | Internal Combustion Engine | oil engines |
| 1,334,376 | Mar. 23, 1920 | R.M. Hvid | Oil Burning Engine | oil engines |
