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| Patents Granted on 1828-12-31 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,320X | Dec. 31, 1828 | J. Woodhull | Zig zag screw in lieu of the crank | ||
| 5,321X | Dec. 31, 1828 | J.M. Davidson | Mode of locking wagons | ||
| 5,322X | Dec. 31, 1828 | J. Thorp (Thorpe) | Spinning Machine, Called Ring Groove Spinner | textile machines | |