| All Patents in class 123/68 |
Patents 1 -
15
of 65
      |
| Number | Date | Patentee | Title | Type |
| 44,572 | Oct. 04, 1864 | S.L. Wiegand | Gas Engine | gas and gasoline engines |
| 118,028 | Aug. 15, 1871 | C.P. Leavitt | Improvement in Gas Engines | gas and gasoline engines |
| 125,166 | Apr. 02, 1872 | G.B. Brayton | Improvement in Gas Engines | gas and gasoline engines |
| 151,468 | Jun. 02, 1874 | G.B. Brayton | Gas Engines | gas and gasoline engines |
| 222,660 | Dec. 16, 1879 | F. Bürger | Gas-Engine | gas and gasoline engines |
| 225,778 | Mar. 23, 1880 | W. Hees, W. Wittig | Gas-Engine | gas and gasoline engines |
| 230,470 | Jul. 27, 1880 | D. Clerk | Gas Motor Engine | gas and gasoline engines |
| 233,804 | Oct. 26, 1880 | A.K. Rider | Gas Engine | gas and gasoline engines |
| 241,707 | May 17, 1881 | N.A. Otto | Gas Motor Engine | gas and gasoline engines |
| 243,795 | Jul. 05, 1881 | J. Robson | Gas Engine | gas and gasoline engines |
| 259,736 | Jun. 20, 1882 | H. Wiedling | Gas Engine | gas and gasoline engines |
| 264,126 | Sep. 12, 1882 | C.G. Beechey | Gas Engine | gas and gasoline engines |
| 269,146 | Dec. 12, 1882 | H. Wiedling | Gas Engine | gas and gasoline engines |
| 269,163 | Dec. 12, 1882 | K. Teichmann | Gas Engine | gas and gasoline engines |
| 272,130 | Feb. 13, 1883 | C.C. Lallement, E. Etève | Gas Engine | gas and gasoline engines |
