Assignee
PERFECTION SPRINKLER CO
US·8 granted patents·291 citations·filing 1987–2001
Top patents by PatentIndex Score
8 records- 0190US6231764B1Septic tank pump arrangement including a self-cleaning rotary strainerPERFECTION SPRINKLER CO·Filed 2000·Granted May 15, 2001·62 cites·19 claims
- 0286US4822486ARotary self-cleaning strainerPERFECTION SPRINKLER CO·Filed 1987·Granted Apr 18, 1989·62 cites·20 claims
- 0378US5108592ARotary self-cleaning strainer simultaneously cleaned and rotated by nozzle structurePERFECTION SPRINKLER CO·Filed 1990·Granted Apr 28, 1992·50 cites·10 claims
- 0472US5215656ARotary self-cleaning strainerPERFECTION SPRINKLER CO·Filed 1991·Granted Jun 1, 1993·39 cites·22 claims
- 0571US6508933B2Self-cleaning shallow water strainerPERFECTION SPRINKLER CO·Filed 2001·Granted Jan 21, 2003·19 cites·16 claims
- 0669US6773606B2System for straining septic tank effluent before discharge to a drain fieldPERFECTION SPRINKLER CO·Filed 2001·Granted Aug 10, 2004·16 cites·15 claims
- 0765US5356532AUse of a multi-apertured plastic pipe in the drive and structure of a rotary self-cleaning strainerPERFECTION SPRINKLER CO·Filed 1993·Granted Oct 18, 1994·30 cites·20 claims
- 0843US5993652ASelf-cleaning strainer having rotating strainer frame assembly journaled on central core by sets of wheelsPERFECTION SPRINKLER CO·Filed 1998·Granted Nov 30, 1999·13 cites·20 claims
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