| All Patents in class 123/197.1 |
Patents 16 -
28
of 28
      |
| Number | Date | Patentee | Title | Type |
| 558,943 | Apr. 28, 1896 | L.S. Gardner | Vapor Motor | |
| 575,720 | Jan. 26, 1897 | J. Ledent | Gas Engine | cooling apparatus |
| 579,554 | Mar. 23, 1897 | E.W. Blum | Gas Motor | internal combustion engines |
| 617,388 | Jan. 10, 1899 | W.F. Bauroth, E. Bauroth | Gas Engine | gas and gasoline engines |
| 623,361 | Apr. 18, 1899 | J.H. Frew | Oscillating Gas or Steam Engine | gas and gasoline engines |
| 623,713 | Apr. 25, 1899 | F. Hayot | Motor Engine | gas and gasoline engines |
| 637,450 | Nov. 21, 1899 | J.B. Doolittle | Gasolene Engine | gas and gasoline engines |
| 642,761 | Feb. 06, 1900 | M.H. Smith | Reciprocating Engine | steam engines |
| 655,186 | Aug. 07, 1900 | H.A. Bertheau | Rear-Compression Explosive-Engine | internal combustion engines |
| 680,985 | Aug. 20, 1901 | W.S. Sharpneck | Multiple Piston Explosive Engine | internal combustion engines |
| 681,162 | Aug. 20, 1901 | A.C. Wolfe | Gas or Other Explosive Engine | gas and gasoline engines |
| 1,576,549 | Mar. 16, 1926 | O.L. Riegels | Engine-starting device | motor vehicles |
| 2,444,103 | Jun. 29, 1948 | J.G. Kuhn | Sleeve Valve Internal-Combustion Engine | internal combustion engine valves |
