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| Patents for Charles Sommer | |||||
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| Number | Date | Patentee | Title | Type | |
| 89,178 | Apr. 20, 1869 | C. Sommer | Improvement in sawmills | circular sawmills | |
| 349,323 | Sep. 21, 1886 | C. Sommer | Stave-dressing machine | barrel making machines | |
| 410,994 | Sep. 10, 1889 | C. Sommer | Stave-dressing machine | barrel making machines | |
| 501,697 | Jul. 18, 1893 | C. Sommer | Stave-bending machine | cooper | |
| 504,461 | Sep. 05, 1893 | C. Sommer | Machine for dressing bucked staves | barrel making machines | |