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| Patents for William D. Brown | |||||
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| Number | Date | Patentee | Title | Type | |
| 154,832 | Sep. 08, 1874 | W.D. Brown | Improvement in Instruments For Ringing Hogs | hog ring | |
| 206,419 | Jul. 30, 1878 | W.D. Brown | Instrument For Ringing Swine | hog ring | |
| 400,057 | Mar. 26, 1889 | G.N. Clemson | Hack-saw | hacksaws | |
| 417,404 | Dec. 17, 1889 | G.N. Clemson | Saw | hacksaws | |
| 417,425 | Dec. 17, 1889 | J.R. Hoffman | Band-saw pulley | bandsaw wheels | |