Individual holder
MEFFERD ROY J
5 granted patents·86 citations·filing 1976–1980
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
5 records- 0182US4387845AMethod and apparatus for holding and cooling a metal tube during weldingMEFFERD ROY J·Filed 1980·Granted Jun 14, 1983·37 cites·7 claims
- 0280US4384511AHydraulic cylinderMEFFERD ROY J·Filed 1980·Granted May 24, 1983·28 cites·2 claims
- 0361US4060259AImplement transporting deviceMEFFERD ROY J·Filed 1976·Granted Nov 29, 1977·19 cites·8 claims
- 0431USD264299SHand tool for loosening or tightening nuts in place of a spanner wrenchMEFFERD ROY J·Filed 1980·Granted May 11, 1982·1 cites·1 claims
- 0527US4299144AHand tool and method for using sameMEFFERD ROY J·Filed 1980·Granted Nov 10, 1981·1 cites·6 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →