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| Patents for Oliver Phelps | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,406X | Nov. 17, 1821 | O. Phelps | Elastic floor for propelling boats | nautical propulsion apparatus | |
| 3,407X | Nov. 17, 1821 | G. Moorehouse, O. Phelps | Plough | plows | |
| 4,821X | Jul. 16, 1827 | O. Phelps | Conveying earth or other substances from bottom of canals | ||