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| Patents for C. B. Cottrell | |||||
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| Number | Date | Patentee | Title | Type | |
| 21,720 | Oct. 05, 1858 | C.B. Cottrell | Improved machine for planing wood | wood planers | |
| 24,078 | May 17, 1859 | C.B. Cottrell | Improved feeding device for planing-machines | wood planers | |
| 51,522 | Dec. 12, 1865 | C.A. Stillman | Improvement in pumps | steam pumps | |