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| Patents for A. Ebert O'Brien | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,004,792 | Oct. 03, 1911 | W.L. Bessolo | Pipe Wrench | pipe wrenches | |
| 1,008,939 | Nov. 14, 1911 | W.L. Bessolo | Pipe Wrench | chain and strap wrenches | |
| 1,259,045 | Mar. 12, 1918 | A.L. Proske, T.H. Proske | Drill Sharpener | ||
| 1,267,862 | May 28, 1918 | H. Haefliger | Combined Microscope and Object Holder | ||