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| Patents for Ralph Bulkley | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,319X | Mar. 29, 1821 | R. Bulkley | Machine for protecting firemen | ||
| 3,355X | Aug. 07, 1821 | R. Bulkley | Oblique water wheel | water wheels | |
| 3,374X | Aug. 28, 1821 | R. Bulkley | Dry docks | ||
| 3,389X | Oct. 08, 1821 | R. Bulkley | Right and left chain wheel | ||
| 3,843X | Apr. 08, 1824 | R. Bulkley | Safety steam engine boiler | stationary boilers | |
| 3,857X | Apr. 24, 1824 | R. Bulkley | Elbow wheel for propelling boats | nautical propulsion apparatus | |
| 3,860X | Apr. 30, 1824 | R. Bulkley | Steam engine | steam engines | |