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| Patents for Willard E. Sibley | |||||
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| Number | Date | Patentee | Title | Type | |
| 45,351 | Dec. 06, 1864 | W.E. Sibley | Improvement in dovetailing-machines | dovetailing machines | |
| 53,236 | Mar. 13, 1866 | W.E. Sibley | Improvement in gearing for grinding or other rollers | ||
| 103,670 | May 31, 1870 | W.E. Sibley | Improvement in machine for cutting dovetails | dovetailing machines | |
| 291,235 | Jan. 01, 1884 | W.E. Sibley | Pencil-sharpener | ||