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| Patents for Richard P. Bruff | |||||
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| Number | Date | Patentee | Title | Type | |
| RE5,624 | Oct. 21, 1873 | J. Swan | Machine for Upsetting Cook's Auger Bits | making drills and augers | |
| 170,089 | Nov. 16, 1875 | B.F. Joslyn | Wrench | screw adjust wrenches | |
| 177,521 | May 16, 1876 | B.F. Joslyn | Improved Carriage-Wrench | axle nut wrenches | |
| 180,348 | Jul. 25, 1876 | B.F. Joslyn | Wrench | screw adjust wrenches | |
| 187,388 | Feb. 13, 1877 | B.F. Joslyn | Improvement in wood-boring machines | portable timber borers | |