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| Patents for E. J. Worcester | |||||
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| Number | Date | Patentee | Title | Type | |
| 99,803 | Feb. 15, 1870 | E.J. Worcester | Improved drilling-machine | drill presses | |
| 110,530 | Dec. 27, 1870 | E.J. Worcester | Improvement in boring-machines | drilling and boring | |
| 197,711 | Nov. 27, 1877 | E.J. Worcester | Improvement in machines for grinding lawn-motor cutter | grinders | |
| 274,243 | Mar. 20, 1883 | E.J. Worcester | Drilling-machine | drill presses | |