Assignee
ENVIROTECH PUMPSYSTEMS INC
US·30 granted patents·6 pending applications·428 citations·filing 1993–2018
Top patents by PatentIndex Score
36 records- 0188US7455251B2Pump impeller and chopper plate for a centrifugal pumpENVIROTECH PUMPSYSTEMS INC·Filed 2006·Granted Nov 25, 2008·15 cites·12 claims
- 0288US7234657B2Pump impeller and chopper plate for a centrifugal pumpENVIROTECH PUMPSYSTEMS INC·Filed 2006·Granted Jun 26, 2007·15 cites·10 claims
- 0387US7784489B2Check valve for a self-priming pumpENVIROTECH PUMPSYSTEMS INC·Filed 2006·Granted Aug 31, 2010·20 cites·7 claims
- 0485US9719516B2Pressure reducing rotor assembly for a pumpENVIROTECH PUMPSYSTEMS INC·Filed 2015·Granted Aug 1, 2017·6 cites·18 claims
- 0581US7584916B2Cutting ring element for a centrifugal chopper pumpENVIROTECH PUMPSYSTEMS INC·Filed 2005·Granted Sep 8, 2009·10 cites·7 claims
- 0681US5941536AElastomer seal for adjustable side liners of pumpsENVIROTECH PUMPSYSTEMS INC·Filed 1998·Granted Aug 24, 1999·48 cites·14 claims
- 0779US7118327B2Impeller and cutting elements for centrifugal chopper pumpsENVIROTECH PUMPSYSTEMS INC·Filed 2004·Granted Oct 10, 2006·27 cites·23 claims
- 0878US7080797B2Pump impeller and chopper plate for a centrifugal pumpENVIROTECH PUMPSYSTEMS INC·Filed 2004·Granted Jul 25, 2006·19 cites·16 claims
- 0977US6391170B1Anode box for electrometallurgical processesENVIROTECH PUMPSYSTEMS INC·Filed 2000·Granted May 21, 2002·16 cites·9 claims
- 1077US5472148AGrinding mill, lining and associated method of manufactureENVIROTECH PUMPSYSTEMS INC·Filed 1993·Granted Dec 5, 1995·44 cites·5 claims
- 1176US5513954AMultilayer pump linerENVIROTECH PUMPSYSTEMS INC·Filed 1994·Granted May 7, 1996·43 cites·20 claims
- 1273US7168915B2Apparatus for axial adjustment of chopper pump clearancesENVIROTECH PUMPSYSTEMS INC·Filed 2004·Granted Jan 30, 2007·21 cites·15 claims
- 1373US7114925B2Impeller vane configuration for a centrifugal pumpENVIROTECH PUMPSYSTEMS INC·Filed 2004·Granted Oct 3, 2006·19 cites·6 claims
- 1467US6817845B2Centrifugal pump with switched reluctance motor driveENVIROTECH PUMPSYSTEMS INC·Filed 2002·Granted Nov 16, 2004·20 cites·20 claims
- 1562US10151314B2Gear-driven flow-through pitot tube pumpENVIROTECH PUMPSYSTEMS INC·Filed 2014·Granted Dec 11, 2018·2 cites·18 claims
- 1662US6505743B1Unitarily-formed grit classifier tank and bearingENVIROTECH PUMPSYSTEMS INC·Filed 2000·Granted Jan 14, 2003·9 cites·45 claims
- 1762US6231730B1Cathode frameENVIROTECH PUMPSYSTEMS INC·Filed 1999·Granted May 15, 2001·21 cites·19 claims
- 1856US7121794B2Component assembly for reconfiguring a centrifugal pumpENVIROTECH PUMPSYSTEMS INC·Filed 2004·Granted Oct 17, 2006·9 cites·7 claims
- 1956US6431828B1Non-planar rotor cover for a centrifugal pumpENVIROTECH PUMPSYSTEMS INC·Filed 2000·Granted Aug 13, 2002·11 cites·26 claims
- 2054US10280925B2Pressure reducing rotor assembly for a pumpENVIROTECH PUMPSYSTEMS INC·Filed 2017·Granted May 7, 2019·0 cites·17 claims
- 2152US5975840APitot tube pump having axial-stabilizing constructionENVIROTECH PUMPSYSTEMS INC·Filed 1997·Granted Nov 2, 1999·23 cites·15 claims
- 2249US6921245B2Coaxial seal for a pumpENVIROTECH PUMPSYSTEMS INC·Filed 2003·Granted Jul 26, 2005·6 cites·18 claims
- 2348US6986644B2Hard material impeller and methods and apparatus for constructionENVIROTECH PUMPSYSTEMS INC·Filed 2003·Granted Jan 17, 2006·4 cites·38 claims
- 2447US10082411B2Pitot tube stabilizer arrangement for centrifugal pumpsENVIROTECH PUMPSYSTEMS INC·Filed 2016·Granted Sep 25, 2018·0 cites·20 claims
- 2546US2010313972A1Check Valve For A Self-Priming PumpENVIROTECH PUMPSYSTEMS INC·Filed 2010·Application pending·0 cites
- 2646US2006198731A1Wear ring for a centrifugal pitot tube pumpENVIROTECH PUMPSYSTEMS INC·Filed 2006·Application pending·0 cites
- 2745US2007071619A1Fill port for a self-priming centrifugal pump, with safety deviceENVIROTECH PUMPSYSTEMS INC·Filed 2006·Application pending·0 cites
- 2844US2005110193A1Composition for making polymeric liningsENVIROTECH PUMPSYSTEMS INC·Filed 2004·Application pending·0 cites
- 2943US7988408B2Two-piece bearing housing for a centrifugal pumpENVIROTECH PUMPSYSTEMS INC·Filed 2008·Granted Aug 2, 2011·0 cites·2 claims
- 3041US6709227B2Pitot tube insertENVIROTECH PUMPSYSTEMS INC·Filed 2002·Granted Mar 23, 2004·2 cites·11 claims
- 3141US2007036643A1Tool-free adjustable clean out assembly for a pumpENVIROTECH PUMPSYSTEMS INC·Filed 2006·Application pending·0 cites
- 3239US10604927B2Prerotation basin for pumping fluids from a wet wellENVIROTECH PUMPSYSTEMS INC·Filed 2018·Granted Mar 31, 2020·0 cites·24 claims
- 3338US5997243APitot tube inlet insertENVIROTECH PUMPSYSTEMS INC·Filed 1998·Granted Dec 7, 1999·8 cites·18 claims
- 3438US5885627AMold for forming elastomeric flange linings for pipesENVIROTECH PUMPSYSTEMS INC·Filed 1996·Granted Mar 23, 1999·6 cites·4 claims
- 3535US2007036660A1Low-profile impeller boltENVIROTECH PUMPSYSTEMS INC·Filed 2006·Application pending·0 cites
- 3625US5871304APrecast prerotation basin systemENVIROTECH PUMPSYSTEMS INC·Filed 1997·Granted Feb 16, 1999·4 cites·16 claims
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