Inventor · disambiguated record
Alan R. Levin
Also filed as: LEVIN ALAN · LEVIN ALAN R
19 granted patents·3 pending applications·851 citations·filing 1977–2021
96Inventor score
Files withH TECH INC6HAYWARD IND INC6CABOT SAFETY INTERMEDIATE CORP3ACF IND INC2RENAUD BENOIT JOSEPH2
Top patents by PatentIndex Score
22 records- 0198US7931447B2Drain safety and pump control deviceHAYWARD IND INC·Filed 2006·Granted Apr 26, 2011·101 cites·30 claims
- 0298US6536435B1Respirator headpiece and release mechanismCABOT SAFETY INTERMEDIATE CORP·Filed 2000·Granted Mar 25, 2003·283 cites·35 claims
- 0395US6497232B2Respirator headpiece and release mechanismCABOT SAFETY INTERMEDIATE CORP·Filed 2001·Granted Dec 24, 2002·86 cites·21 claims
- 0493US5624559ABag filter and retainer thereforH TECH INC·Filed 1995·Granted Apr 29, 1997·123 cites·34 claims
- 0591US5551467ABall valve with controlled flow variationH TECH INC·Filed 1995·Granted Sep 3, 1996·70 cites·14 claims
- 0690US9108126B2Unitary filter tank and an underdrain for filtering a body of waterRENAUD BENOIT JOSEPH·Filed 2012·Granted Aug 18, 2015·10 cites·16 claims
- 0790US7297265B1Backwash strainer having a cyclonic flow mechanismEATON CORP·Filed 2006·Granted Nov 20, 2007·37 cites·19 claims
- 0888US8936721B2Unitary filter tank and an underdrain for filtering a body of waterRENAUD BENOIT JOSEPH·Filed 2011·Granted Jan 20, 2015·9 cites·11 claims
- 0984US9046247B2Low-profile niche for underwater pool/spa lightsHAYWARD IND INC·Filed 2012·Granted Jun 2, 2015·7 cites·24 claims
- 1083US4151855ABall valve assembly tools and method of using sameACF IND INC·Filed 1977·Granted May 1, 1979·35 cites·11 claims
- 1174USD473937SRespiratorCABOT SAFETY INTERMEDIATE CORP·Filed 2001·Granted Apr 29, 2003·19 cites·1 claims
- 1268US10941920B2Low-profile niche for underwater pool/spa lightsHAYWARD IND INC·Filed 2015·Granted Mar 9, 2021·1 cites·31 claims
- 1366US11378257B2Low-profile niche for underwater pool/spa lightsHAYWARD IND INC·Filed 2021·Granted Jul 5, 2022·0 cites·23 claims
- 1463US5671769ASwing check valve and method for repairing sameH TECH INC·Filed 1995·Granted Sep 30, 1997·23 cites·23 claims
- 1557USD373176SCombined valve indicator and handleH TECH INC·Filed 1995·Granted Aug 27, 1996·10 cites·1 claims
- 1657US2016001489A1Unitary Filter Tank And An Underdrain For Filtering A Body Of WaterHAYWARD IND INC·Filed 2015·Application pending·0 cites
- 1756US5609185AValve indicator and handle assemblyH TECH INC·Filed 1995·Granted Mar 11, 1997·18 cites·27 claims
- 1854US2009038696A1Drain Safety and Pump Control Device with VerificationLEVIN ALAN R·Filed 2008·Application pending·0 cites
- 1951US11940052B2Flow control valve for suction cleanersHAYWARD IND INC·Filed 2019·Granted Mar 26, 2024·0 cites·25 claims
- 2051US4279404AGuide arrangement for expanding gate valvesACF IND INC·Filed 1979·Granted Jul 21, 1981·12 cites·7 claims
- 2149USD377825SBag filter vesselH TECH INC·Filed 1995·Granted Feb 4, 1997·7 cites·1 claims
- 2243US2010219185A1Sealing System For Pressure VesselsGRIFFIN RONALD H·Filed 2009·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →