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| Patents for Quimby S. Backus | |||||
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| Number | Date | Patentee | Title | Type | |
| 132,790 | Nov. 05, 1872 | Q.S. Backus | Improvement in bit-stocks | brace chucks | |
| 132,791 | Nov. 05, 1872 | Q.S. Backus | Improvement in bit-braces | brace handles | |
| 225,682 | Mar. 23, 1880 | S.A. Bostwick | Combined drill and bit-stock | hand drills | |