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| Patents for Otto L. Johnson | |||||
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| Number | Date | Patentee | Title | Type | |
| 57,120 | Aug. 14, 1866 | A. Goodyear | Improvement in machines for cutting barrel-hoops | hoop making machines | |
| 66,146 | Jun. 25, 1867 | A. Goodyear | Hub lathe | wheelwright | |
| 464,899 | Dec. 08, 1891 | G.B. Schaeffer | Pipe or Nut Wrench | quick adjust wrenches | |