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| Patents for Francis B. Crocker | |||||
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| Picture | Number | Date | Patentee | Title | |
| 271,175 | Jan. 23, 1883 | S.S. Wheeler, C.G. Curtis, F.B. Crocker | Electric Motor | ||
| 354,538 | Dec. 21, 1886 | F.B. Crocker, C.G. Curtis | Dynamo Electric Machine or Motor | ||
 | 451,894 | May 05, 1891 | W.F. Collins | Electric motor or dynamo-electric machine | |
| 494,978 | Apr. 04, 1893 | S.S. Wheeler, F.B. Crocker | Electric Motor | ||