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| Patents for Edwin S. Clarkson | |||||
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| Number | Date | Patentee | Title | Type | |
| 427,743 | May 13, 1890 | R.L. Warner, H.B. Smith, W.M. Chamberlain | Improvements in Hub-Wrenches | axle nut wrenches that lock nut to wheel hub | |
| 446,074 | Feb. 10, 1891 | C.H. Myers | Attachment for Metal Planers | metal planer accessories | |
| D34,017 | Jan. 29, 1901 | F.O. Farwell | Design for a Casing for Inclinometers | levels | |
| 808,245 | Dec. 26, 1905 | J. Lund | Wood-Boring Implement | auger bits | |
| 937,962 | Oct. 26, 1909 | H.B. Ross | Cutter-head for grooving-machines | cutterheads | |