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| Patents Granted on 1827-07-31 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,839X | Jul. 31, 1827 | W. Thornton | Method of cooling fluids | ||
| 4,840X | Jul. 31, 1827 | J.H. Schreiner | Improvement called the chimney smoke and safety valve | household tools | |
| 4,841X | Jul. 31, 1827 | S. Brown | Mode of moving brick, stone, etc. | bricklayer | |
| 4,842X | Jul. 31, 1827 | I. Cheatham | Harrow and plough hoe | plows | |