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| Patents for William Pratt | |||||
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| Number | Date | Patentee | Title | Type | |
| 79,684 | Jul. 07, 1868 | W. Pratt | Tool-holder for engine-lathes and planing-machines | ||
| 158,998 | Jan. 19, 1875 | B.F. Sturtevant | Improvement in mechanisms for compressing points on pegs | shoe and boot making machines | |
| 159,860 | Feb. 16, 1875 | B.F. Sturtevant | Ribbon Peg Wood | shoemaking | |