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| Patents Granted on 1830-02-04 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,816X | Feb. 04, 1830 | E. Brown, A. Cross | Grinding flax seed, paint, etc. | paint grinding mills | |
| 5,817X | Feb. 04, 1830 | J.M. Patton | Steam navigation | steam engines | |
| NX-183,002,041 | Feb. 04, 1830 | J.M. Patton | Steam Navigation | steamboats | |