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| Patents for Henry Chapin | |||||
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| Number | Date | Patentee | Title | Type | |
| 11,208 | Jul. 04, 1854 | A.G. Coes | Improvement in Screw-Wrenches | nut wrenches | |
| 14,704 | Apr. 15, 1856 | B. James | Awl-Haft | tool handles | |
| 18,318 | Oct. 06, 1857 | E.H. Bellows | Brick-press | manufacturing bricks and tiles | |
| 20,010 | Apr. 20, 1858 | D.H. Whittemore | Bit holder | brace chucks | |