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| Patents for Collins Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 172,246 | Jan. 18, 1876 | L. Chapman | Metal Hammering-Machine | power hammers | |
| 183,797 | Oct. 31, 1876 | L. Chapman | Machines for Punching and Swaging Metal | metal punching machines | |
| 225,745 | Mar. 23, 1880 | L. Chapman | Dies For Forming Wrench-Heads | wrench jaw components | |
| 300,445 | Jun. 17, 1884 | L. Chapman | Manufacture of Wrench Forgings | wrench components | |
| 705,451 | Jul. 22, 1902 | E.H. Sears | Wrench Handle | wrench handle components | |