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| Patents for David N. B. Coffin Jr. | |||||
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| Number | Date | Patentee | Title | Type | |
| 17,315 | May 19, 1857 | H.D. Stover, D.N. Coffin, Jr. | Dogging lumber in planing machines | wood planers | |
| 17,604 | Jun. 16, 1857 | D.N. Coffin, Jr. | Faucet | faucets | |
| 21,379 | Aug. 31, 1858 | H.D. Stover | Machine for cutting irregular forms | wood shapers | |
| 111,695 | Feb. 07, 1871 | L.S. Starrett | Improvement in car couplings | ||
| 134,516 | Jan. 07, 1873 | D.N. Coffin, Jr. | Steering Apparatus | shipwright | |