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| Patents for Wilhelm Oesterlein | |||||
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| Number | Date | Patentee | Title | Type | |
| 228,552 | Jun. 08, 1880 | W. Oesterlein | Friction-clutch | industrial machine clutches | |
| 235,558 | Dec. 14, 1880 | W. Oesterlein | Friction-clutch | industrial machine clutches | |
| 378,803 | Feb. 28, 1888 | W. Oesterlein | Friction-clutch | industrial machine clutches | |
| 515,091 | Feb. 20, 1894 | W. Oesterlein | Clutch | industrial machine clutches | |
| 554,719 | Feb. 18, 1896 | W. Oesterlein | Conduit electric railway | electric railroads | |