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| Patents Granted on 1823-06-20 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,714X | Jun. 20, 1823 | J. Collins, E. Williams | Fire engine and water pump | fire engine pumps | |
| 3,715X | Jun. 20, 1823 | S. Blair | Making wagons | ||
| 3,716X | Jun. 20, 1823 | J.T. Sharrock | Manufacturing cotton | cotton gins | |
| 3,717X | Jun. 20, 1823 | R. Sealy | Destroying bed bugs | ||