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| Patents for Ephraim Treadwell | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,780X | Apr. 26, 1817 | E. Treadwell | Improvement on stoves | stoves | |
| 2,994X | Aug. 27, 1818 | E. Treadwell | Constructing ovens in the American stoves | ovens | |
| 3,161X | Jan. 10, 1820 | E. Treadwell | Bread finisher | baker | |
| 4,436X | May 18, 1826 | E. Treadwell | Bread, Biscuit | cracker and biscuit machines | |
| NX-183,605,181 | May 18, 1836 | E. Treadwell | Crackers and Biscuit, Cutting | baker | |