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| Patents for J. E. Knox | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 141,460 | Aug. 05, 1873 | H.O. Reed | Improvement in screw-cutting machines | |
 | 142,813 | Sep. 16, 1873 | H.O. Reed | Tilting-table saw | |
 | CA-6,868 | Dec. 12, 1876 | H.G. Ashton | Perfectionnements aux Soupapes de Sûreté | |
 | CA-6,874 | Dec. 12, 1876 | H.G. Ashton | Perfectionnements Aux Locomotives de Railroutes | |
| 197,072 | Nov. 13, 1877 | J.E. Maynadier, H.G. Ashton | Improvement in Safety-Valves | ||