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| Patents for Guy C. Humphries | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,525 | May 16, 1846 | A.W. Gray | Wrought-nail machinery | nail making machines | |
| 4,983 | Feb. 27, 1847 | J. Powell, N. Barlow, E. Holden | Machine for planing, tonguing and grooving | wood planers | |
| 5,334 | Oct. 16, 1847 | A. Caldwell | Improvement in cutter-heads for planing-machines | cutters | |
| 5,578 | May 16, 1848 | B. Edwards | Corn Sheller | corn shellers | |