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| Patents Granted on 1797-12-__ | |||||
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| Number | Date | Patentee | Title | Type | |
| 193X | Dec. 10, 1797 | E. Ring | Spiral Wheel for Working in the Tide Water | tide mills | |
| 194X | Dec. 10, 1797 | W. Payne | Soap stone stove | stoves | |
| 195X | Dec. 17, 1797 | T. Palmer | Improvement in bridges | bridges | |
| 196X | Dec. 19, 1797 | L. Fling | Making Nails | nail making machines | |