Individual holder
RIEFFEL DONALD W
US·2 granted patents·75 citations·filing 1988–1989
Individually held — no corporate assignee on record.
Technology mixA43B2
Top patents by PatentIndex Score
2 records- 0151US4914837ASandal with contained granular material to provide a pad for a person's footRIEFFEL DONALD W·Filed 1989·Granted Apr 10, 1990·40 cites·10 claims
- 0249US4821431ASandal with contained granular material to provide a pad for a person's footRIEFFEL DONALD W·Filed 1988·Granted Apr 18, 1989·35 cites·14 claims
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