Individual holder
MICHAEL RICHARD D
US·3 granted patents·93 citations·filing 1988–1990
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0189US5005520AAnimal litter deodorizing additiveMICHAEL RICHARD D·Filed 1989·Granted Apr 9, 1991·58 cites·6 claims
- 0254US4862830ASelf-cleaning cat pan deviceMICHAEL RICHARD D·Filed 1988·Granted Sep 5, 1989·18 cites·1 claims
- 0349US5100262AExpanding base deep foundation systemMICHAEL RICHARD D·Filed 1990·Granted Mar 31, 1992·17 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →