Inventor · disambiguated record
William C. Perchak
Also filed as: PERCHAK WILLIAM C
5 granted patents·287 citations·filing 1984–1988
85Inventor score
Files withPLASTOFILM IND INC5
Top patents by PatentIndex Score
5 records- 0193US4819829AClosure for pourable materials containerPLASTOFILM IND INC·Filed 1988·Granted Apr 11, 1989·131 cites·20 claims
- 0292US4519500ADisplay/storage package and file thereforPLASTOFILM IND INC·Filed 1984·Granted May 28, 1985·49 cites·13 claims
- 0385US4784268AStand-up or hanging display blister and packagePLASTOFILM IND INC·Filed 1987·Granted Nov 15, 1988·74 cites·11 claims
- 0463USD286111SCombined display and storage case for pens and the likePLASTOFILM IND INC·Filed 1984·Granted Oct 14, 1986·9 cites·1 claims
- 0558US4505404AContainer with integral closurePLASTOFILM IND INC·Filed 1984·Granted Mar 19, 1985·24 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →