| All Patents in class 123/1R |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 88,767 | Apr. 13, 1869 | J.B. Atwater | Motive Power | hot air engines |
| 408,483 | Aug. 06, 1889 | H. Hoelljes | Method of Operating Gas Engines | gas and gasoline engines |
| 417,759 | Dec. 24, 1889 | W. Von Oechelhaeuser | Gas Engine | gas and gasoline engines |
| 542,846 | Jul. 16, 1895 | R. Diesel | Method and Apparatus for Converting Heat to Work | diesel engines |
| 599,235 | Feb. 15, 1898 | P.L. Hider | Explosive Engine | gas and gasoline engines |
| 633,878 | Sep. 26, 1899 | R. Mewes | Combustion Motor | internal combustion engines |
| 642,176 | Jan. 30, 1900 | E. Thomson | Internal Combustion Engine | gas and gasoline engines |
| 651,741 | Jun. 12, 1900 | J.C. Anderson | Explosive Liquid-Air Engine | internal combustion engines |
| 651,742 | Jun. 12, 1900 | J.C. Anderson | Method of Moving Pistons of Explosive-Engines | internal combustion engines |
| 658,367 | Sep. 25, 1900 | E. Apperson, E. Haynes | Explosive Engine | gas and gasoline engines |
| 658,993 | Oct. 02, 1900 | E.A. Mitchell | Internal-Combustion Engine | internal combustion engines |
| 662,040 | Nov. 20, 1900 | T.J. Sturtevant, T.L. Sturtevant | Explosion Engine | internal combustion engines |
| 673,160 | Apr. 30, 1901 | R. Diesel | Method of Igniting and Regulating Combustion for Internal Combustion Engines | diesel engines |
| 2,561,598 | Jul. 24, 1951 | C.H. Schowalter | Meton of Gas Engine Operation | gas and gasoline engines |
