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| Patents for J. M. Covington | |||||
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| Number | Date | Patentee | Title | Type | |
| 59,882 | Nov. 20, 1866 | T.J. Wells | Improved peat machine | ||
| 76,798 | Apr. 14, 1868 | C.B. Morse | Improvement in spinning-frame | ||
| 80,376 | Jul. 28, 1868 | C.B. White | Improvement in Gib and Self Oiler | ||
| 85,991 | Jan. 19, 1869 | R.A. Briggs | Improvements in combined rule and protractor | ||