Individual holder
KOPP HAROLD W
US·5 granted patents·90 citations·filing 1982–1990
Individually held — no corporate assignee on record.
Technology mixA63B4
Top patents by PatentIndex Score
5 records- 0156US4537397AFootball kicking teeKOPP HAROLD W·Filed 1982·Granted Aug 27, 1985·27 cites·5 claims
- 0253US4516769ARebound sports training apparatusKOPP HAROLD W·Filed 1984·Granted May 14, 1985·24 cites·9 claims
- 0349USD299154SFootball practice placekick holderKOPP HAROLD W·Filed 1987·Granted Dec 27, 1988·6 cites·1 claims
- 0443US4907801ARebound baseball training apparatusKOPP HAROLD W·Filed 1988·Granted Mar 13, 1990·18 cites·7 claims
- 0539US5031910AMethod and apparatus for ball catch trainingKOPP HAROLD W·Filed 1990·Granted Jul 16, 1991·15 cites·10 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →