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| Patents for James L. Ewin | |||||
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| Number | Date | Patentee | Title | Type | |
| 55,570 | Jun. 12, 1866 | J.H. Wonderly | Improved machine for sandpapering wood-work | disk sanders | |
| RE2,369 | Oct. 02, 1866 | P.H. Roots | Improvement in blowers | blowers | |
| 61,539 | Jan. 29, 1867 | O.T. Hayes | Improvement in Carpenters' Squares | squares | |
| 155,093 | Sep. 15, 1874 | J.L. Knowlton | Improvement in steam-boilers | stationary boilers | |