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| Patents for David Sperry | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,730X | May 12, 1812 | D. Sperry | Boring hubs and felloes of wheels | drilling and boring | |
| 4,735X | Apr. 18, 1827 | D. Sperry | Boring and tenoning spokes for wheels | wheelwright | |
| 5,967X | May 19, 1830 | D. Sperry, S. Fisher | Thrashing machine | threshers and thrashers | |