| All Patents in class 123/41R |
Patents 1 -
15
of 40
      |
| Number | Date | Patentee | Title | Type |
| 3,597 | May 25, 1844 | S. Perry | Manner of Constructing an Inflammable Gas or Vapor Engine | gas and gasoline engines |
| 4,800 | Oct. 07, 1846 | S. Perry | Gas Engine | gas and gasoline engines |
| 317,892 | May 12, 1885 | D.S. Troy | Gas Engine | gas and gasoline engines |
| 324,244 | Aug. 11, 1885 | H.P. Feister | Gas Engine for Railway Cars | gas and gasoline engines |
| 337,000 | Mar. 02, 1886 | J.P. Holland | Hydrocarbon Engine | gas and gasoline engines |
| 353,402 | Nov. 30, 1886 | J.H. Clark | Reversible Gas Engine | gas and gasoline engines |
| 532,865 | Jan. 22, 1895 | A.W. Brown | Vapor Engine | |
| 539,710 | May 21, 1895 | C. Sintz | Gas Engine | internal combustion engines |
| 544,586 | Aug. 13, 1895 | F.S. Mead | Gas or Oil Engine | gas and gasoline engines |
| 548,922 | Oct. 29, 1895 | J.J. Norman | Gas and Oil Engine | gas and gasoline engines |
| 570,649 | Nov. 03, 1896 | R.J. Rolfson | Gas Engine | gas and gasoline engines |
| 581,385 | Apr. 27, 1897 | E.P. Woillard | Gas or Vapor Engine | cylinders |
| 586,409 | Jul. 13, 1897 | E.P. Woillard | Gas or Vapor Engine | gas and gasoline engines |
| 600,147 | Mar. 08, 1898 | L. Halvorson | Explosive Engine | gas and gasoline engines |
| 607,903 | Jul. 26, 1898 | W.J. Wright | Gas Engine | gas and gasoline engines |
