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| Patents for Albert F. Prentice | |||||
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| Number | Date | Patentee | Title | Type | |
| 127,132 | May 21, 1872 | E.J. Worcester, A.F. Prentice | Improvement in drilling-machines | drill presses | |
| 340,615 | Apr. 27, 1886 | A.F. Prentice | Drilling-machine | drill presses | |
| 418,382 | Dec. 31, 1889 | V.F. Prentice | Metal-turning lathe | metal lathes | |
| 438,014 | Oct. 07, 1890 | B.G. Luther | Drilling-machine | drill presses | |
| 572,445 | Dec. 01, 1896 | B.W. Prentice | Sectional expansion-tap | taps and dies | |
| 593,607 | Nov. 16, 1897 | A.F. Prentice | Engine Lathe | engine lathes | |