Inventor · disambiguated record
Michael J. Virnig
Also filed as: VIRNIG MICHAEL · VIRNIG MICHAEL J
71 granted patents·7 pending applications·1,186 citations·filing 1976–2017
99Inventor score
Top patents by PatentIndex Score
78 records- 0194US6177055B1Process for extracting and recovering copperHENKEL CORP·Filed 1999·Granted Jan 23, 2001·64 cites·31 claims
- 0294US4992200ARecovery of precious metalsHENKEL CORP·Filed 1988·Granted Feb 12, 1991·46 cites·6 claims
- 0394US4814007ARecovery of precious metalsHENKEL CORP·Filed 1986·Granted Mar 21, 1989·51 cites·6 claims
- 0493US6432167B1Processes for the recovery of copper from aqueous solutions containing nitrate ionsCOGNIS CORP·Filed 2001·Granted Aug 13, 2002·34 cites·18 claims
- 0593US5028259ARecovery of precious metalHENKEL RESEARCH CORP·Filed 1990·Granted Jul 2, 1991·53 cites·30 claims
- 0692US6596053B2Processes for the recovery of copper from aqueous solutions containing nitrate ionsCOGNIS CORP·Filed 2002·Granted Jul 22, 2003·30 cites·29 claims
- 0792US4895597ARecovery of precious metalsHENKEL CORP·Filed 1989·Granted Jan 23, 1990·47 cites·14 claims
- 0891US9074292B2Acid mist mitigation agents for electrolyte solutionsCOGNIS IP MAN GMBH·Filed 2012·Granted Jul 7, 2015·4 cites·9 claims
- 0991US6395062B2Process for recovery of metals from metal-containing oresCOGNIS CORP·Filed 2001·Granted May 28, 2002·43 cites·31 claims
- 1090US9714218B2Acid mist mitigation agents for electrolyte solutionsBASF SE·Filed 2015·Granted Jul 25, 2017·3 cites·4 claims
- 1190US8343326B2Acid mist mitigation agents for electrolyte solutionsBASF CORP·Filed 2008·Granted Jan 1, 2013·7 cites·5 claims
- 1290US5670035AMethod for recovering copperHENKEL CORP·Filed 1995·Granted Sep 23, 1997·47 cites·36 claims
- 1388US7993613B2More efficient ether modifiers for copper extractant formulationsCOGNIS IP MAN GMBH·Filed 2007·Granted Aug 9, 2011·7 cites·7 claims
- 1488US6599414B1Solvent extraction processes for metal recoveryCOGNIS CORP·Filed 2001·Granted Jul 29, 2003·25 cites·19 claims
- 1588US4940808AProcess for ozonization of unsaturated organic compoundsHENKEL KGAA·Filed 1988·Granted Jul 10, 1990·24 cites·21 claims
- 1687US8475748B2Metal solvent extraction reagents and use thereofVIRNIG MICHAEL·Filed 2012·Granted Jul 2, 2013·3 cites·24 claims
- 1785US5340380ARecovery of precious metalHENKEL CORP·Filed 1993·Granted Aug 23, 1994·28 cites·28 claims
- 1884US8529850B2Compositions and methods of using a ketoxime in a metal solventVIRNIG MICHAEL·Filed 2012·Granted Sep 10, 2013·2 cites·19 claims
- 1984US7585475B2Highly-conductive copper extractant formulationsCOGNIS IP MAN GMBH·Filed 2007·Granted Sep 8, 2009·7 cites·11 claims
- 2084US6197214B1Ammonium thiosulfate complex of gold or silver and an amineHENKEL CORP·Filed 1999·Granted Mar 6, 2001·32 cites·6 claims
- 2184US5939034AProcess for the recovery of precious metal values from aqueous ammoniacal thiosulfate leach solutionsHENKEL CORP·Filed 1997·Granted Aug 17, 1999·50 cites·22 claims
- 2284US5494649AProcess for removing heavy metals from paint chipsCOGNIS INC·Filed 1992·Granted Feb 27, 1996·35 cites·1 claims
- 2383US6231784B1Water insoluble composition of an aldoxime extractant and an equilibrium modifierHENKEL CORP·Filed 1998·Granted May 15, 2001·33 cites·30 claims
- 2482US6107523ABeta-diketones for the extraction of copper from aqueous ammoniacal solutionsHENKEL CORP·Filed 1997·Granted Aug 22, 2000·25 cites·28 claims
- 2582US4626582AAcryloxymethyl substituted fatty compoundsHENKEL CORP·Filed 1985·Granted Dec 2, 1986·17 cites·24 claims
- 2681US8440857B2Sulfonate- or sulfate-capped anti-misting agentsVIRNIG MICHAEL·Filed 2007·Granted May 14, 2013·4 cites·12 claims
- 2781US6702872B1Processes for the recovery of copper from aqueous solutions containing nitrate ionsCOGNIS CORP·Filed 1999·Granted Mar 9, 2004·28 cites·24 claims
- 2879US6833479B2Antimisting agentsCOGNIS CORP·Filed 2003·Granted Dec 21, 2004·15 cites·51 claims
- 2978US8460623B2Methods of metal extraction using oximesVIRNIG MICHAEL·Filed 2012·Granted Jun 11, 2013·1 cites·12 claims
- 3076US8852549B2Method for maintaining the ratio of the oxime to equilibrium modifier concentration in solvent extraction circuitsVIRNIG MICHAEL·Filed 2012·Granted Oct 7, 2014·2 cites·20 claims
- 3175US6632410B2Solvent extraction processCOGNIS CORP·Filed 2001·Granted Oct 14, 2003·10 cites·8 claims
- 3275US5908605ACopper recovery processHENKEL CORP·Filed 1996·Granted Jun 1, 1999·24 cites·12 claims
- 3375US5660806AProcess for removing lead from sandblasting wastes containing paint chipsHENKEL CORP·Filed 1995·Granted Aug 26, 1997·20 cites·7 claims
- 3475US5158603AProcess of extracting anions with quaternary aminesHENKEL RESEARCH CORP·Filed 1990·Granted Oct 27, 1992·34 cites·44 claims
- 3574US5976218AProcess for the recovery of nickelHENKEL CORP·Filed 1997·Granted Nov 2, 1999·32 cites·19 claims
- 3674US4638096AProcess of preparing hydroxyarylaldehydes and catalyst thereforHENKEL CORP·Filed 1982·Granted Jan 20, 1987·10 cites·32 claims
- 3773US5575918AMethod for recovery of polymersHENKEL CORP·Filed 1995·Granted Nov 19, 1996·45 cites·26 claims
- 3872US4936999AProcess for recovery of amino acids from aqueous mixturesHENKEL CORP·Filed 1988·Granted Jun 26, 1990·9 cites·15 claims
- 3971US6261526B1Nickel recovery process and compositions for use thereinHENKEL CORP·Filed 1999·Granted Jul 17, 2001·21 cites·25 claims
- 4069US5198021ARecovery of precious metalHENKEL CORP·Filed 1992·Granted Mar 30, 1993·14 cites·32 claims
- 4169US5032323AProcess for isomerizing epoxides to ketonesHENKEL RESEARCH CORP·Filed 1990·Granted Jul 16, 1991·10 cites·18 claims
- 4269US4904640A2-alkylidene-3,3,5(3,5,5)-trimethyl cyclopentanonesHENKEL KGAA·Filed 1988·Granted Feb 27, 1990·9 cites·12 claims
- 4368US7025899B2Concentrated solutions of oxime metal extractants and method of formulating extractant compositions therefromCOGNIS CORP·Filed 2001·Granted Apr 11, 2006·7 cites·9 claims
- 4468US2017283373A1Acid Mist Mitigation Agents for Electrolyte SolutionsBASF SE·Filed 2017·Application pending·0 cites
- 4566US5885327AProcess for the recovery of goldHENKEL CORP·Filed 1996·Granted Mar 23, 1999·15 cites·8 claims
- 4666US5785935AProcess for removing mercury from soilFiled 1994·Granted Jul 28, 1998·17 cites·9 claims
- 4766US5744107AProcess for removing heavy metals from soilHENKEL CORP·Filed 1994·Granted Apr 28, 1998·15 cites·22 claims
- 4865US8986633B2Compositions and methods of using a ketoxime in a metal solvent extraction reagentCOGNIS IP MAN GMBH·Filed 2013·Granted Mar 24, 2015·0 cites·5 claims
- 4965US8945490B2Methods of metal extraction using oximesCOGNIS IP MAN GMBH·Filed 2013·Granted Feb 3, 2015·0 cites·17 claims
- 5065US5993757AReoximation of metal extraction circuit organicsHENKEL CORP·Filed 1998·Granted Nov 30, 1999·15 cites·39 claims
Showing the top 50 of 78 patent records by PatentIndex Score.
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