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| Patents for Charles Ketchum | |||||
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| Number | Date | Patentee | Title | Type | |
| 40,052 | Sep. 22, 1863 | C.J. Legg | Corn Sheller | corn shellers | |
| 40,437 | Oct. 27, 1863 | M. Tuell | Spoke Shave | spokeshaves | |
| 46,245 | Feb. 07, 1865 | C. Ketchum | Corn Sheller | corn shellers | |
| 82,289 | Sep. 22, 1868 | B.F. Burgess | Improvement in saws | saw teeth | |
| 102,885 | May 10, 1870 | M. Tuells | Improvement in Implement for Measuring Boards | lumber rules | |
| 105,210 | Jul. 12, 1870 | E. Horton | Clapboard Gauge | clapboard markers | |