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| Patents for John J. Hughes | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,468,179 | Sep. 23, 1969 | J.J. Hughes, R.K. Sedgwick | Recirculating ball worm drive | metalworking power transmission | |
| 4,135,848 | Jan. 23, 1979 | J.P. Bliss, J.W. Turner, T.F. Lis, J.J. Hughes | Toolholder Clamp for Machine Tools | metalworking machine tool holders | |
| 4,238,167 | Dec. 09, 1980 | J.J. Hughes, D.M. Brugger | Toolholder Adapter | metalworking machine tool holders | |