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| Patents for Herbert J. Leighton | |||||
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| Number | Date | Patentee | Title | Type | |
| 325,096 | Aug. 25, 1885 | J. Coffin, H.J. Leighton | Graduated Scale | rule graduations | |
| 490,121 | Jan. 17, 1893 | H.J. Leighton | Protractor Bevel | bevels | |
| 1,840,237 | Jan. 05, 1932 | H.J. Leighton | Work Holder for Straightening Machines | grinding machines | |