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| Patents for William Dunn | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,699X | Apr. 01, 1812 | W. Dunn | Preparing magnesia | ||
| 1,908X | Apr. 08, 1813 | W. Dunn | Mode of preparing magnesia | ||
| 61,042 | Jan. 08, 1867 | J.L. Beers | Improvement in sawmills | sawmill feed works | |
| 161,600 | Apr. 06, 1875 | O.P. Doray | Improvement in machines for making rope molding | rope and spiral cutting machines | |