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| Patents for Francis M. Roots | |||||
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| Number | Date | Patentee | Title | Type | |
| 56,614 | Jul. 24, 1866 | P.H. Roots, F.M. Roots | Improvement in cross-heads for blowers | blowers | |
| 108,941 | Nov. 01, 1870 | F.M. Roots, P.H. Roots | Portable Forge | portable forges | |
| 349,360 | Sep. 21, 1886 | F.M. Roots | Portable Forge | portable forges | |