Individual holder
DUNN RICHARD P
US·3 granted patents·112 citations·filing 1978–1990
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0186US4174548APlumber's appliance for clearing drainsDUNN RICHARD P·Filed 1978·Granted Nov 20, 1979·52 cites·4 claims
- 0283US5040817ATrailer hitch assemblyDUNN RICHARD P·Filed 1990·Granted Aug 20, 1991·52 cites·7 claims
- 0347US4983960APorch or entry switch providing emergency signalsDUNN RICHARD P·Filed 1989·Granted Jan 8, 1991·8 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →