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| Patents for N. S. Johnson | |||||
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| Number | Date | Patentee | Title | Type | |
| 133,224 | Nov. 19, 1872 | A.W. Webster, A.B. Hendryx | Improvement in the Machines for Compressing Metal Pointing Wire, &c. | ||
| 470,734 | Mar. 15, 1892 | F.D. Winkley | Oil-cup | industrial machine lubrication | |
| 492,451 | Feb. 28, 1893 | F.D. Winkley | Grinding apparatus | ||