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