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| Patents for Clark I. Hayes | |||||
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| Number | Date | Patentee | Title | Type | |
| 36,150 | Aug. 12, 1862 | M. Newman, C.I. Hayes | Improved machine for edging and slitting boards | circular ripsaws | |
| 48,875 | Jul. 18, 1865 | M. Newman | Improvement in sawing machines | reciprocating sawmills | |
| RE3,101 | Aug. 25, 1868 | C.I. Hayes, M. Newman | Improvement in circular-saw mills | circular ripsaws | |