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| Patents for John B. Bartholomew | |||||
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| Number | Date | Patentee | Title | Type | |
| 677,332 | Jul. 02, 1901 | J.B. Bartholomew | Traction Engine | steam traction engines | |
| 887,303 | May 12, 1908 | J.B. Bartholomew | Traction Engine | steam traction engines | |
| 1,116,785 | Nov. 10, 1914 | J.B. Bartholomew | Traction Engine | steam traction engines | |