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| Patents for John Heavin | |||||
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| Picture | Number | Date | Patentee | Title | |
| 683X | Apr. 17, 1806 | J. Heavin | Propelling boats up rivers by cranks and setting poles | ||
| 684X | Apr. 17, 1806 | J. Heavin | Machine for cutting straw | ||
| 1,303X | May 08, 1810 | J. Heavin | Shelling corn | ||
| 1,684X | Mar. 16, 1812 | J. Heavin | Machine for dressing shingles | ||
| 1,816X | Oct. 16, 1812 | J. Heavin | Looms | ||
| 1,977X | Aug. 03, 1813 | J. Heavin | Machine for making ropes and twine | ||
| 2,065X | Feb. 18, 1814 | J. Heavin | Looms | ||
| 2,833X | Aug. 27, 1817 | J. Heavin | Steam engine | ||