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| Patents for Woolf Valve Gear Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 407,806 | Jul. 30, 1889 | J. Peebles, E.J. Woolf | Valve Gear for Engines | steam engine valve gear | |
| 444,563 | Jan. 13, 1891 | E.J. Woolf | Valve-Gear for Engines | steam engine valve gear | |
| 455,872 | Jul. 14, 1891 | J. Peebles, E.J. Woolf | Valve Gear for Engines | steam engine valve gear | |
| 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 | |
| 627,219 | Jun. 20, 1899 | E.J. Woolf | Air and Gas Engine | gas and gasoline engines | |
| 627,220 | Jun. 20, 1899 | E.J. Woolf | Air and Gas Engine | gas and gasoline engines | |