Assignee
LEWISAN PRODUCTS INC
US·7 granted patents·153 citations·filing 1986–1991
Top patents by PatentIndex Score
7 records- 0181US4763374APowered drain cleanerLEWISAN PRODUCTS INC·Filed 1987·Granted Aug 16, 1988·48 cites·20 claims
- 0273US4793017AVibrating drain-cleaning implementLEWISAN PRODUCTS INC·Filed 1987·Granted Dec 27, 1988·36 cites·21 claims
- 0373US4706321ADrain-cleaning implementLEWISAN PRODUCTS INC·Filed 1986·Granted Nov 17, 1987·26 cites·18 claims
- 0459US5173984ASelf-drying powered drain augerLEWISAN PRODUCTS INC·Filed 1991·Granted Dec 29, 1992·26 cites·10 claims
- 0552USD311076SPowered drain cleanerLEWISAN PRODUCTS INC·Filed 1987·Granted Oct 2, 1990·6 cites·1 claims
- 0640US4791828ACrank handle apparatusLEWISAN PRODUCTS INC·Filed 1988·Granted Dec 20, 1988·7 cites·19 claims
- 0716US4914776ATube-cleaning apparatusLEWISAN PRODUCTS INC·Filed 1989·Granted Apr 10, 1990·4 cites·23 claims
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