Individual holder
EWAN FREDERICK R
US·3 granted patents·293 citations·filing 1989–1992
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0189US5294470ATamper indicating containers and sealsEWAN FREDERICK R·Filed 1992·Granted Mar 15, 1994·107 cites·10 claims
- 0289US4998666ATamper indicating containers and sealsEWAN FREDERICK R·Filed 1989·Granted Mar 12, 1991·97 cites·10 claims
- 0386US5060848ATamper indicating containers and sealsEWAN FREDERICK R·Filed 1990·Granted Oct 29, 1991·89 cites·10 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →