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| Patents for Jonathan Yerkes | |||||
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| Number | Date | Patentee | Title | Type | |
| 62,105 | Feb. 12, 1867 | J. Yerkes | Improvement in Making Hammers | hammers | |
| 142,070 | Aug. 19, 1873 | J. Yerkes | Improvement in the Manufacture of Hammers | hammers | |
| 150,385 | Apr. 28, 1874 | J. Yerkes | Improvement in wedges for tool-handles | hammers | |
| 183,096 | Oct. 10, 1876 | J. Yerkes | Improvement in the Manufacture of Adz-Eye Hammers | hammers | |
| 235,326 | Dec. 07, 1880 | J. Yerkes | Manufacture of Hammers and Hatchets | hammers | |