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| Patents for James N. Skinner | |||||
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| Number | Date | Patentee | Title | Type | |
| 216,766 | Jun. 24, 1879 | J.N. Skinner | Improvement in lathe-chucks | metal lathe chucks | |
| 221,746 | Nov. 18, 1879 | J.N. Skinner | Lathe Chuck | metal lathe chucks | |
| 250,400 | Dec. 06, 1881 | J.N. Skinner | Lathe Chuck | metal lathe chucks | |
| 255,039 | Mar. 14, 1882 | J.N. Skinner | Lathe-chuck | metal lathe chucks | |
| 269,889 | Jan. 02, 1883 | J.N. Skinner | Lathe Chuck | metal lathe chucks | |
| 303,331 | Aug. 12, 1884 | J.N. Skinner | Lathe Chuck | metal lathe chucks | |
| 356,616 | Jan. 25, 1887 | C.L. Butler | Drill-chuck | drill chucks | |
| 381,857 | Apr. 24, 1888 | J.N. Skinner | Drill Chuck | drill press chucks | |
| 454,074 | Jun. 16, 1891 | J.N. Skinner | Drill-chuck | drill press chucks | |
| 460,601 | Oct. 06, 1891 | J.N. Skinner | Lathe-Chuck | metal lathe chucks | |
| 463,373 | Nov. 17, 1891 | J.N. Skinner | Lathe-Chuck Jaw | metal lathe chucks | |
| 463,392 | Nov. 17, 1891 | J.N. Skinner | Lathe-chuck | metal lathe chucks | |
| 508,533 | Nov. 14, 1893 | J.N. Skinner | Face-plate jaw | metal lathe chucks | |