| All Patents in class 123/146 |
Patents 1 -
15
of 53
      |
| Number | Date | Patentee | Title | Type |
| 4,800 | Oct. 07, 1846 | S. Perry | 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 |
| 270,202 | Jan. 09, 1883 | J. Charter | Gas Engine | gas and gasoline engines |
| 297,329 | Apr. 22, 1884 | S.L. Wiegand | Gas Engine | gas and gasoline engines |
| 346,687 | Aug. 03, 1886 | H. Robinson | Gas Motor Engine | gas and gasoline engines |
| 362,187 | May 03, 1887 | J.C. Beckfeld, A. Schmid | Gas Engine | gas and gasoline engines |
| 386,929 | Jul. 31, 1888 | N.A. Otto | Igniting Apparatus for Gas Engines | internal combustion engine governors |
| 401,204 | Apr. 09, 1889 | B. Parker, L.C. Parker | Igniting Apparatus for Gas Engines | ignition systems |
| 402,549 | Apr. 30, 1889 | S. Wilcox | Gas or Oil Engine | gas and gasoline engines |
| 403,367 | May 14, 1889 | B. Parker, L.C. Parker | Gas or Gasoline Engine | |
| 405,795 | Jun. 25, 1889 | B. Parker, L.C. Parker | Gas or Hydrocarbon Vapor Engine | |
| 406,263 | Jul. 02, 1889 | L.T. Cornell | Gas Engine | gas and gasoline engines |
| 406,807 | Jul. 09, 1889 | A.R. Middleton, C. White | Gas Engine | gas and gasoline engines |
| 412,228 | Oct. 08, 1889 | F. Küppermann, A. Altmann | Petroleum Motor | internal combustion engines |
