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| Patents for Charles H. Roberts | |||||
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| Number | Date | Patentee | Title | Type | |
| 216,893 | Jun. 24, 1879 | C.H. Roberts | Improvement in saw-mill dogs | sawmill dogs | |
| 372,806 | Nov. 08, 1887 | C. Kehr | Machine for turning irregular forms | pattern lathes | |
| 509,557 | Nov. 28, 1893 | C.H. Roberts | Bandsaw mill | band sawmills | |
| 567,282 | Sep. 08, 1896 | C.H. Roberts | Bandsaw mill | band sawmills | |