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| Patents for John R. Mason | |||||
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| Number | Date | Patentee | Title | Type | |
| 166,538 | Aug. 10, 1875 | J.R. Mason | Chucks and Centerers | metal lathe chucks | |
| 172,086 | Jan. 11, 1876 | J.W. Byther | Improvement in stave-jointing machines | barrel making machines | |
| 178,850 | Jun. 20, 1876 | G.W. Herring | Improvement in machines for sawing staves and laths | cooper | |
| 216,344 | Jun. 10, 1879 | B.F. Penney | Improvement in shingle-sawing machines | shingle machines | |
| 425,371 | Apr. 08, 1890 | A.J. Curtis | Pipe Wrench | pipe wrenches | |