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| Patents for E. K. Root | |||||
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| Number | Date | Patentee | Title | Type | |
| 9,941 | Aug. 16, 1853 | E.K. Root | Drop Hammer | drop hammers | |
| 12,002 | Nov. 28, 1854 | E.K. Root | Improved machine for boring the chambers in the cylinders of fire-arms | drilling and boring | |
| 12,285 | Jan. 23, 1855 | E.K. Root | Rifling Machine | rifling machines | |
| 12,874 | May 15, 1855 | E.K. Root | Slide Lathe | engine lathes | |
| 58,958 | Oct. 16, 1866 | E.K. Root | Improvement in machines for dressing willow for baskets | specialty woodworking machines | |