| All Patents in class 91/164 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 4,317 | Dec. 20, 1845 | J. Ericsson | Compound Steam Engine | steam engines |
| 262,476 | Aug. 08, 1882 | E. Reynolds | Valve Gear for Compound Engines | steam engine valve gear |
| 359,707 | Mar. 22, 1887 | W. Brown | Valve for Steam Engines | steam engine valves |
| 381,747 | Apr. 24, 1888 | J. Young | Valve-gear | steam engine valve gear |
| 401,167 | Apr. 09, 1889 | C. Holly | Compound Steam Engine | steam engines |
| 402,622 | May 07, 1889 | J.E. McIntosh, J.A. Seymour | Steam Engine | steam engines |
| 521,278 | Jun. 12, 1894 | E.J. Woolf | Engine | steam engine valve gear |
| 531,285 | Dec. 18, 1894 | E.J. Woolf | Engine | steam engine valve gear |
| 641,103 | Jan. 09, 1900 | J. Hardill | Compound steam-engine | steam engines |
| 654,759 | Jul. 31, 1900 | J.B. O'Donnell | Duplex Steam Engine | steam engines |
| 754,620 | Mar. 15, 1904 | J.B. Stanwood | Valve-gearing for steam-engines | steam engine valve gear |
| 816,411 | Mar. 27, 1906 | W. Wills | Compound Steam Engine | steam engines |
| 892,017 | Jun. 30, 1908 | A.G. Stokes | Multiple Expansion Engine | steam engine pistons |
