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| Patents for Caleb Hopkins | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 132,763 | Nov. 05, 1872 | C. Hopkins | Improvement in Watchmakers' Lathes and Chucks | |
| 186,564 | Jan. 23, 1877 | C. Hopkins | Treadle | ||
 | 193,609 | Jul. 31, 1877 | C. Hopkins | Improvement in slide-rests for watch-makers' lathes | |
 | 196,228 | Oct. 16, 1877 | C. Hopkins | Improvement in watch-makers' lathes | |
 | 233,097 | Oct. 12, 1880 | C. Hopkins | Watchmakers Lathe Chuck | |
 | 301,466 | Jul. 01, 1884 | C.E. Van Norman, C. Hopkins | Lathe Chuck | |