| All Patents in class 123/255 |
Patents 1 -
15
of 34
      |
| Number | Date | Patentee | Title | Type |
| 325,377 | Sep. 01, 1885 | C.W. Baldwin | Gas Engine | gas and gasoline engines |
| 399,348 | Mar. 12, 1889 | G.M. Richards | Hydrocarbon Engine | internal combustion engines |
| 399,569 | Mar. 12, 1889 | M.V. Schiltz | Petroleum Engine | gas and gasoline engines |
| 407,234 | Jul. 16, 1889 | N.A. Otto | Motor Engine Worked by Combustion of Spray of Petroleum | carburetors |
| 412,228 | Oct. 08, 1889 | F. Küppermann, A. Altmann | Petroleum Motor | internal combustion engines |
| 425,116 | Apr. 08, 1890 | A.T. Griggs, J.R. Valentine | Gas Engine | gas and gasoline engines |
| 448,369 | Mar. 17, 1891 | D.S. Regan | Vapor Engine | gas and gasoline engines |
| 532,219 | Jan. 08, 1895 | A. Spiel, C. Spiel | Hydrocarbon Engine | |
| 535,837 | Mar. 19, 1895 | W. Lorenz | Combined Vaporizer and Igniter for Oil Motors | oil engines |
| 535,914 | Mar. 19, 1895 | J. Kosakoff, V. List | Petroleum or Oil Engine | oil engines |
| 550,185 | Nov. 19, 1895 | J. Kosakoff, V. List | Petroleum or Oil Engine | oil engines |
| 563,670 | Jul. 07, 1896 | F.S. Mead | Gas, Oil or Vapor Engine | gas and gasoline engines |
| 564,769 | Jul. 28, 1896 | H. Swain | Gas or Oil Engine | gas and gasoline engines |
| 565,033 | Aug. 04, 1896 | J. Robison | Gas and Oil Engine | gas and gasoline engines |
| 572,209 | Dec. 01, 1896 | E.E. Ludl | Explosive Engine | |
