Assignee
SUMNER JOE D
3 granted patents·64 citations·filing 1976–1982
Top patents by PatentIndex Score
3 records- 0173US4411410AApparatus for cutting openings in pipesSUMNER JOE D·Filed 1982·Granted Oct 25, 1983·27 cites·32 claims
- 0261US4026514APressure enhanced butterfly valveSUMNER JOE D·Filed 1976·Granted May 31, 1977·22 cites·19 claims
- 0349US4138090AButterfly valve with two-way pressure enhanced sealingSUMNER JOE D·Filed 1977·Granted Feb 6, 1979·15 cites·35 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →