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| Patents for William J. Johnson | |||||
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| Number | Date | Patentee | Title | Type | |
| 95,483 | Oct. 05, 1869 | G. Tainter, W.J. Johnson | Improvement in boring-tool | hand drills | |
| RE6,649 | Sep. 21, 1875 | W.J. Johnson | Pump | pumps | |
| 342,361 | May 25, 1886 | E.D. Johnson | Saw-mill dog | sawmill dogs | |
| 518,106 | Apr. 10, 1894 | W.J. Johnson | Tool-Handle | tool handles | |