| All Patents in class 123/25C |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 49,346 | Aug. 08, 1865 | P. Hugon | Gas Engine | gas and gasoline engines |
| 343,745 | Jun. 15, 1886 | S. Wilcox | Gas Engine | gas and gasoline engines |
| 542,846 | Jul. 16, 1895 | R. Diesel | Method and Apparatus for Converting Heat to Work | diesel engines |
| 548,772 | Oct. 29, 1895 | J.R. Bridges | Explosive Gas Engine | gas and gasoline engines |
| 570,263 | Oct. 27, 1896 | R.E. Olds | Combined Gas and Steam Engine | gas and gasoline engines |
| 575,720 | Jan. 26, 1897 | J. Ledent | Gas Engine | cooling apparatus |
| 597,860 | Jan. 25, 1898 | S. Rolfe | Explosion Engine | oil engines |
| 607,580 | Jul. 19, 1898 | L.J. Wing | Gas Engine | gas and gasoline engines |
| 704,995 | Jul. 15, 1902 | C.W. Weiss | Explosive Engine | oil engines |
| 864,877 | Sep. 03, 1907 | E.J. Woolf | Explosive Engine | internal combustion engines |
| 881,214 | Mar. 10, 1908 | E.J. Woolf | Explosive Compound Engine | internal combustion engines |
| 1,121,153 | Dec. 15, 1914 | E.J. Woolf | Explosive-Engine. | internal combustion engines |
| 1,165,028 | Dec. 21, 1915 | H.F. Shepherd | Water and Feed Pump for Hydrocarbon Engines | fuel pumps |
