Assignee
WILLIAMS RICHARD LEE
4 granted patents·99 citations·filing 1978–1989
Top patents by PatentIndex Score
4 records- 0188US4309128AMethod and apparatus for removing deflection from plastic pipesWILLIAMS RICHARD LEE·Filed 1980·Granted Jan 5, 1982·62 cites·16 claims
- 0277US4222687AApparatus for boring sewer pipe opening in manhole baseWILLIAMS RICHARD LEE·Filed 1978·Granted Sep 16, 1980·27 cites·7 claims
- 0334US4948351APressure sewer pumping system with check valve arrangementWILLIAMS RICHARD LEE·Filed 1989·Granted Aug 14, 1990·4 cites·12 claims
- 0434US4756644ARerounding apparatusWILLIAMS RICHARD LEE·Filed 1987·Granted Jul 12, 1988·6 cites·20 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →