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| Patents for William Henry Barwick | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-909 | Apr. 04, 1871 | W.H. Barwick | Barwick Improved Wrench | pliers type wrenches | |
| 115,678 | Jun. 06, 1871 | W.H. Barwick | Improvement in Pipe-Wrenches | pipe tongs | |
| 124,659 | Mar. 19, 1872 | W.T. Farre, W.H. Barwick | Improvement in devices for cutting off pipes | pipe cutters | |