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| Patents for S. Hart Culver | |||||
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| Number | Date | Patentee | Title | Type | |
| 289,126 | Nov. 27, 1883 | G. Nichols | Expansion-Bit | adjustable drill bits | |
| 405,613 | Jun. 18, 1889 | N. Sperry | Package for Auger Bits | tool storage | |
| 486,239 | Nov. 15, 1892 | A.U. Smith | Machine for Shaping Auger-Heads | making drills and augers | |
| 520,502 | May 29, 1894 | J. Swan | Hollow auger | hollow bits | |
| 818,062 | Apr. 17, 1906 | S.H. Tucker | Expansible bit | adjustable drill bits | |