Assignee
ENVIREX
US·64 granted patents·1,590 citations·filing 1974–1996
Top patents by PatentIndex Score
64 records- 0188US5766484ADissolved gas floatation deviceENVIREX·Filed 1996·Granted Jun 16, 1998·77 cites·17 claims
- 0287US4863418ANon-metallic chain including wound composite chain links and molded pinsENVIREX·Filed 1989·Granted Sep 5, 1989·42 cites·10 claims
- 0387US4568457AStaged anaerobic reactorENVIREX·Filed 1983·Granted Feb 4, 1986·54 cites·14 claims
- 0486US4932927AHigh strength, non-metallic transmission chainENVIREX·Filed 1988·Granted Jun 12, 1990·51 cites·37 claims
- 0584US3953555ADiffuser connector for aeration headerENVIREX·Filed 1974·Granted Apr 27, 1976·51 cites·4 claims
- 0683US4961854AActivated sludge wastewater treatment processENVIREX·Filed 1988·Granted Oct 9, 1990·66 cites·14 claims
- 0783US4631974APolymeric split sprocket wheelENVIREX·Filed 1985·Granted Dec 30, 1986·34 cites·18 claims
- 0881US5215616AMethod for manufacturing a high strength, non-metallic transmission chainENVIREX·Filed 1992·Granted Jun 1, 1993·45 cites·3 claims
- 0981US4975197AOrbal wastewater treatment processENVIREX·Filed 1990·Granted Dec 4, 1990·60 cites·9 claims
- 1081US4038187AMicroscreen drumENVIREX·Filed 1976·Granted Jul 26, 1977·50 cites·8 claims
- 1180US4668387ADeep submergence rotating biological contactor apparatusENVIREX·Filed 1985·Granted May 26, 1987·57 cites·18 claims
- 1279US4950398ACantilevered flight attachment for non-metallic chainENVIREX·Filed 1989·Granted Aug 21, 1990·32 cites·10 claims
- 1379US4663042APolymeric sludge collector flightENVIREX·Filed 1985·Granted May 5, 1987·47 cites·16 claims
- 1478US5222920AChain including roller sealing arrangementENVIREX·Filed 1992·Granted Jun 29, 1993·33 cites·22 claims
- 1577US5326459AWastewater treatment apparatusENVIREX·Filed 1992·Granted Jul 5, 1994·65 cites·20 claims
- 1676US5326460APretensioned mesh insert and method for producing a pretensioned mesh insertENVIREX·Filed 1993·Granted Jul 5, 1994·45 cites·20 claims
- 1776US4582601APolymeric basket frame for a traveling water screenENVIREX·Filed 1984·Granted Apr 15, 1986·48 cites·10 claims
- 1876US4280913AWater purification processENVIREX·Filed 1980·Granted Jul 28, 1981·36 cites·26 claims
- 1975US5372712ABiomass growth control apparatus for fluid bed biological reactorENVIREX·Filed 1993·Granted Dec 13, 1994·33 cites·20 claims
- 2075US4902304ASeparate low pressure gas storage systemENVIREX·Filed 1988·Granted Feb 20, 1990·41 cites·10 claims
- 2172US5242583AWire screen clampENVIREX·Filed 1992·Granted Sep 7, 1993·31 cites·15 claims
- 2270US5501793ATraveling water screen including improved basketENVIREX·Filed 1994·Granted Mar 26, 1996·33 cites·35 claims
- 2369US5035681AReduced friction sprocket assembly for use in corrosive environmentsENVIREX·Filed 1990·Granted Jul 30, 1991·25 cites·42 claims
- 2468US5534140ABar screen having compound fine screen bar rackENVIREX·Filed 1994·Granted Jul 9, 1996·31 cites·27 claims
- 2568US5415766ATraveling water screen including boot sealENVIREX·Filed 1994·Granted May 16, 1995·33 cites·4 claims
- 2668US4563282AWastewater treatment plant and methodENVIREX·Filed 1984·Granted Jan 7, 1986·27 cites·14 claims
- 2768US4555340AExcess overflow orifice tubesENVIREX·Filed 1983·Granted Nov 26, 1985·28 cites·6 claims
- 2868US4549962ARotating biological contactorENVIREX·Filed 1984·Granted Oct 29, 1985·25 cites·7 claims
- 2963US4359385AFilter press plate transfer mechanismENVIREX·Filed 1981·Granted Nov 16, 1982·21 cites·7 claims
- 3063US4009106AClarifier with overflow scum removalENVIREX·Filed 1975·Granted Feb 22, 1977·17 cites·10 claims
- 3158US4038185AScum control system for peripheral feed channel of sedimentation tankENVIREX·Filed 1976·Granted Jul 26, 1977·23 cites·8 claims
- 3257US4604206AStaged anaerobic reactorENVIREX·Filed 1985·Granted Aug 5, 1986·22 cites·10 claims
- 3354US5425874ARotating contactor including cross flow media for the biological treatment of waste waterENVIREX·Filed 1994·Granted Jun 20, 1995·20 cites·15 claims
- 3453US5584996AApparatus and method for distributing liquid containing evolvable glass into a fluidized bed of a reactorENVIREX·Filed 1992·Granted Dec 17, 1996·24 cites·6 claims
- 3553US5489378ADifferential relief mechanism for a traveling water screenENVIREX·Filed 1993·Granted Feb 6, 1996·24 cites·9 claims
- 3650US5976365ABiomass growth control apparatus for fluid bed biological reactorENVIREX·Filed 1994·Granted Nov 2, 1999·14 cites·10 claims
- 3750US3989627ARemovable gas diffuser and apparatus thereforENVIREX·Filed 1975·Granted Nov 2, 1976·11 cites·10 claims
- 3847US5552052AMethod of reducing iron fouling in groundwater treatment systemsENVIREX·Filed 1994·Granted Sep 3, 1996·16 cites·7 claims
- 3946US5419832AGuide lock for a traveling water screenENVIREX·Filed 1993·Granted May 30, 1995·14 cites·12 claims
- 4045US4721570ARBC with solids contact zoneENVIREX·Filed 1987·Granted Jan 26, 1988·21 cites·6 claims
- 4144US4305821ADoctor blade lifter over belt seamENVIREX·Filed 1980·Granted Dec 15, 1981·10 cites·5 claims
- 4243US5249597ADigestor tank having a pressure relief valveENVIREX·Filed 1992·Granted Oct 5, 1993·11 cites·21 claims
- 4343US4294700ASubmerged large diameter sealENVIREX·Filed 1979·Granted Oct 13, 1981·8 cites·4 claims
- 4442US5481789AMethod for removing a gear or bearing in circular clarifiers and thickenersENVIREX·Filed 1994·Granted Jan 9, 1996·11 cites·3 claims
- 4541US4663038ASide channel clarifierENVIREX·Filed 1986·Granted May 5, 1987·10 cites·29 claims
- 4641US4620927APolymeric microscreen support wheel and assemblyENVIREX·Filed 1985·Granted Nov 4, 1986·10 cites·12 claims
- 4740US5766491ABackflow prevention system for media bed reactorENVIREX·Filed 1996·Granted Jun 16, 1998·8 cites·3 claims
- 4839US4372895ADisc for aeration of sewageENVIREX·Filed 1980·Granted Feb 8, 1983·11 cites·6 claims
- 4937US5250178ABuoyant ceiling wiper for stacked tank clarifierENVIREX·Filed 1992·Granted Oct 5, 1993·11 cites·20 claims
- 5037US4629559AVertical looped reactor tank with delayed air release featureENVIREX·Filed 1985·Granted Dec 16, 1986·6 cites·18 claims
Showing the top 50 of 64 patent records by PatentIndex Score.
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