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| Patents for Charles J. Humphrey | |||||
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| Number | Date | Patentee | Title | Type | |
| 132,258 | Oct. 15, 1872 | J.C. Dietrich | Rip-saw handle | handsaws | |
| 135,408 | Feb. 04, 1873 | W. Clemson | Improvement in Buck-Saw Frames | frame saws | |
| 150,289 | Apr. 28, 1874 | W. Clemson | Improvement in apparatus for tempering saws | making sawblades | |