Inventor · disambiguated record
James E. Etzel
Also filed as: ETZEL JAMES E
9 granted patents·282 citations·filing 1976–1995
90Inventor score
Files withPURDUE RESEARCH FOUNDATION5WATER REFINING CO2HERITAGE ENVIRONMENTAL SERV1HERITAGE ENVIRONMENTAL SERVCIE1
Top patents by PatentIndex Score
9 records- 0188US4207397AMethod for recovering and treating brine from water softener regenerationWATER REFINING CO·Filed 1978·Granted Jun 10, 1980·44 cites·4 claims
- 0283US5591346AWater treatment processHERITAGE ENVIRONMENTAL SERV·Filed 1995·Granted Jan 7, 1997·57 cites·4 claims
- 0383US4343706AMethod of removing heavy metals from industrial waste streamsPURDUE RESEARCH FOUNDATION·Filed 1980·Granted Aug 10, 1982·61 cites·6 claims
- 0479US4314905AColumnar fine mesh magnetized ion exchange resin systemPURDUE RESEARCH FOUNDATION·Filed 1980·Granted Feb 9, 1982·34 cites·14 claims
- 0578US4210530ATreatment of metal plating wastes with an unexpanded vermiculite cation exchange columnPURDUE RESEARCH FOUNDATION·Filed 1979·Granted Jul 1, 1980·32 cites·11 claims
- 0676US4288430ADisinfectant chlorinated cyanurate containing compositions and method of usePURDUE RESEARCH FOUNDATION·Filed 1979·Granted Sep 8, 1981·10 cites·2 claims
- 0767US5453201AWater treatment processHERITAGE ENVIRONMENTAL SERVCIE·Filed 1994·Granted Sep 26, 1995·28 cites·6 claims
- 0857US4100065AMethod for removing of multivalent heavy metals from metal plating waste effluentsPURDUE RESEARCH FOUNDATION·Filed 1976·Granted Jul 11, 1978·14 cites·9 claims
- 0927US4387021ASystem for handling exhausted vermiculite cation exchange materialsWATER REFINING CO·Filed 1981·Granted Jun 7, 1983·2 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →