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| Patents for William S. Grosvenor | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 166,758 | Aug. 17, 1875 | C.M. Farrar | Rotary Balanced Valve | |
 | 172,557 | Jan. 25, 1876 | F. Collignon | Steam Boiler | |
| 183,025 | Oct. 10, 1876 | W.S. Grosvenor, J. Sangster | Marine Engine Governor | ||
 | 188,365 | Mar. 13, 1877 | E. Holmes, B. Holmes | Machine for Leveling and Trussing Barrels | |
 | 191,761 | Jun. 12, 1877 | E.K. Holley | Carriage Wrench | |
 | 212,381 | Feb. 18, 1879 | E. Holmes, B. Holmes | Keg-Trussing Machine | |