| All Patents in class 123/66 |
Patents 1 -
15
of 18
      |
| Number | Date | Patentee | Title | Type |
| 37,299 | Jan. 06, 1863 | H. Messer | Air Engine | hot air engines |
| 241,707 | May 17, 1881 | N.A. Otto | Gas Motor Engine | gas and gasoline engines |
| 270,203 | Jan. 09, 1883 | J. Charter | Gas Engine | gas and gasoline engines |
| 276,749 | May 01, 1883 | C.W. Baldwin | Gas Engine | gas and gasoline engines |
| 278,600 | May 29, 1883 | J. Robson | Gas Engine | gas and gasoline engines |
| 286,030 | Oct. 02, 1883 | S. Marcus | Gas Engine | gas and gasoline engines |
| 292,894 | Feb. 05, 1884 | J. Charter | Gas Engine | gas and gasoline engines |
| 315,808 | Apr. 14, 1885 | T. McDonough | Gas Engine | gas and gasoline engines |
| 406,807 | Jul. 09, 1889 | A.R. Middleton, C. White | Gas Engine | gas and gasoline engines |
| 419,805 | Jan. 21, 1890 | C.W. Weiss | Thermo Dynamic Motor | external combustion engines |
| 491,403 | Feb. 07, 1893 | J.S. Biggar | Gas Engine | gas and gasoline engines |
| 553,352 | Jan. 21, 1896 | S.M. Miller | Gas Engine | gas and gasoline engines |
| 563,548 | Jul. 07, 1896 | A.W. Bodell | Gas or Oil Engine | gas and gasoline engines |
| 569,694 | Oct. 20, 1896 | M.W. Weir | Gas Engine | gas and gasoline engines |
| 628,125 | Jul. 04, 1899 | W.S. Sharpneck | Gas Engine | gas and gasoline engines |
