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| Patents for Willis J. Perkins | |||||
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| Number | Date | Patentee | Title | Type | |
| 463,234 | Nov. 17, 1891 | W.J. Perkins | Shingle-sawing machine | shingle machines | |
| 537,850 | Apr. 23, 1895 | W.J. Perkins | Machine for trimming wood, &c. | miter machines | |
| 543,818 | Jul. 30, 1895 | H.A. Weeks | Gas Engine | internal combustion engines | |
| 643,002 | Feb. 06, 1900 | C.H. Blomstrom, W.J. Perkins | Electric Igniter for Explosive Engines | ignition systems | |