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| Patents for Detroit Emery Wheel Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 251,141 | Dec. 20, 1881 | F.M. Simmons | Machine for grinding pulleys | grinders | |
| 582,544 | May 11, 1897 | J.W. Oliver | Oilstone-box | ||
| CA-71,002 | Apr. 16, 1901 | G. Hart | Emery wheel chuck | grinding wheels | |
| CA-91,883 | Feb. 28, 1905 | G. Hart | Grinding wheel | grinding wheels | |
| CA-102,411 | Dec. 04, 1906 | G. Hart | Grinding wheel | grinding wheels | |