Inventor · disambiguated record
Rainer Kupfer
Also filed as: KUPFER RAINER
21 granted patents·13 pending applications·198 citations·filing 1989–2020
94Inventor score
Top patents by PatentIndex Score
34 records- 0190US6326514B1Process for the preparation of ether carboxylic acids with low residual alcohol contentCLARIANT GMBH·Filed 2000·Granted Dec 4, 2001·32 cites·5 claims
- 0285US10131861B2Corrosion-inhibiting compositionsCLARIANT INT LTD·Filed 2015·Granted Nov 20, 2018·4 cites·14 claims
- 0385US7208118B2Process for the solvent-free preparation of ethercarboxylic acids having a low residual salt contentCLARIANT PRODUKTE DEUTSCHLAND·Filed 2005·Granted Apr 24, 2007·6 cites·10 claims
- 0482US6391962B2Copolymers and their use as drift control agentsCLARIANT GMBH·Filed 2001·Granted May 21, 2002·14 cites·1 claims
- 0582US5421993AProcess of inhibiting corrosion, demulsifying and/or depressing the pour point of crude oilHOECHST AG·Filed 1993·Granted Jun 6, 1995·41 cites·16 claims
- 0676US11753541B2Dispersing agentCLARIANT INT LTD·Filed 2020·Granted Sep 12, 2023·1 cites·21 claims
- 0775US7214276B2Ether carboxylic acids based on alkoxylated styrylphenolsCLARIANT PRODUKTE DEUTSCHLAND·Filed 2004·Granted May 8, 2007·7 cites·8 claims
- 0875US5171877AUrethanes made from aliphatic fluoro alcohols, isocyanates and carboxylic acids, a process for their preparation and their useHOECHST AG·Filed 1990·Granted Dec 15, 1992·22 cites·2 claims
- 0962US5534604ACopolymers based on ethylenically unsaturated dicarboxylic anhydrides, long-chain olefins and fluoroolefinsHOECHST AG·Filed 1995·Granted Jul 9, 1996·22 cites·4 claims
- 1059US7008561B2Ether carboxylic acids based on alkoxylated mercaptobenzothiazoles and use of the same as corrosion inhibitorsCLARIANT GMBH·Filed 2002·Granted Mar 7, 2006·5 cites·9 claims
- 1158US6313076B1Use of polymers as antimisting additives in water-based cooling lubricantsCLARIANT GMBH·Filed 2000·Granted Nov 6, 2001·4 cites·7 claims
- 1256US11220603B2Stabilizers for silicate paintsCLARIANT INT LTD·Filed 2017·Granted Jan 11, 2022·0 cites·28 claims
- 1353US8759264B2Water-based hydraulic fluids comprising dithio-di(aryl carbolic acids)KUPFER RAINER·Filed 2009·Granted Jun 24, 2014·0 cites·21 claims
- 1451US6462000B1Use of polymers as antimisting additives in water-based cooling lubricantsCLARIANT GMBH·Filed 2000·Granted Oct 8, 2002·1 cites·11 claims
- 1551US6414075B1Use of polymers as antimisting additives in water-based cooling lubricantsCLARIANT GMBH·Filed 2000·Granted Jul 2, 2002·1 cites·7 claims
- 1647US2023331911A1Water-Based Pigment Preparations, Production And Use Of SameCLARIANT INT LTD·Filed 2020·Application pending·0 cites
- 1746US5114616AEsterified glycidyl ether addition products and their useHOECHST AG·Filed 1990·Granted May 19, 1992·9 cites·5 claims
- 1846US5039450AProcess for the separation of crude oil emulsions of the water-in-oil typeHOECHST AG·Filed 1989·Granted Aug 13, 1991·12 cites·4 claims
- 1946US2011144385A1Method For The Production Of Aryl Polyglycol Carboxylic Acids By Means Of A Direct Oxidation ProcessCLARIANT FINANCE BVI LTD·Filed 2009·Application pending·0 cites
- 2046US2022275236A1Aqueous pigment preparations and their use in tinting systems and for dyeing coating agentsCLARIANT INT LTD·Filed 2020·Application pending·0 cites
- 2144US5385674AProcess for separation of petroleum emulsions of the water-in-oil typeHOECHST AG·Filed 1993·Granted Jan 31, 1995·9 cites·10 claims
- 2244US2002095021A1Water-soluble polyalkylene glycol oils having a high viscosity index and low aerosol toxicityFiled 2002·Application pending·0 cites
- 2342US2013217579A1Pesticide Preparations Containing N-Substituted 2-Pyrrolidone-4-Carboxylic Acid EstersWACKER ANDREAS·Filed 2011·Application pending·0 cites
- 2442US2003194388A1Process for the preparation of ether carboxylic acids with a low setting pointCLARIANT GMBH·Filed 2003·Application pending·0 cites
- 2541US2001031855A1Water-soluble polyalkylene glycol oils having a high viscosity index and low aerosol toxicityCLARIANT GMBH·Filed 2001·Application pending·0 cites
- 2640US10920080B2N-Alkyl glucamine-based universal pigment dispersionsCLARIANT INT LTD·Filed 2016·Granted Feb 16, 2021·0 cites·27 claims
- 2738US9068137B2Water-mixed metal working fluids containing ether pyrrolidone carboxylic acidsKUPFER RAINER·Filed 2010·Granted Jun 30, 2015·0 cites·12 claims
- 2838US5210323AProcess for the preparation of alkoxylates having a narrow distribution of homologs using antimony pentahalide complexes as the catalystHOECHST AKTIENGESE ILSCHAFT·Filed 1992·Granted May 11, 1993·8 cites·7 claims
- 2937US2018215879A1N,N-Dialkyl glucamine for stabilising polymer dispersionsCLARIANT INT LTD·Filed 2016·Application pending·0 cites
- 3037US2017101606A1Use Of N-Methyl-N-Acylglucamine As Corrosion InhibitorCLARIANT INT LTD·Filed 2015·Application pending·0 cites
- 3136US2013217892A1Use Of N-Substituted 2-Pyrrolidone-4-Carboxylic Acid Esters And SolventsWACKER ANDREAS·Filed 2011·Application pending·0 cites
- 3235US2012088698A1Water in oil emulsion, method for the production thereofKAYSER CHRISTOPH·Filed 2010·Application pending·0 cites
- 3334US2012088705A1Polyalkylene glycol-based ether pyrrolidone carboxylic acids, and concentrates for the production of synthetic cooling lubricants containing the sameKUPFER RAINER·Filed 2010·Application pending·0 cites
- 3428US2017226349A1Low-voc amines as a surface-active component in dispersionsCLARIANT INT LTD·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →