Inventor · disambiguated record
Helmut Witteler
Also filed as: WITTELER HELMUT · WITTELER HELMUT B
50 granted patents·42 pending applications·1,508 citations·filing 1995–2022
98Inventor score
Top patents by PatentIndex Score
92 records- 0199US6359070B1Polyesters including isosorbide as a comonomer blended with other thermoplastic polymersDU PONT·Filed 2000·Granted Mar 19, 2002·130 cites·11 claims
- 0298US6063464AIsosorbide containing polyesters and methods for making sameHNA HOLDINGS INC·Filed 1998·Granted May 16, 2000·227 cites·36 claims
- 0398US5959066APolyesters including isosorbide as a comonomer and methods for making sameHNA HOLDINGS INC·Filed 1998·Granted Sep 28, 1999·183 cites·45 claims
- 0497US6025061ASheets formed from polyesters including isosorbideHNA HOLDINGS INC·Filed 1998·Granted Feb 15, 2000·217 cites·40 claims
- 0596US6126992AOptical articles comprising isosorbide polyesters and method for making sameDU PONT·Filed 1998·Granted Oct 3, 2000·133 cites·22 claims
- 0696US6063495APolyester fiber and methods for making sameHNA HOLDINGS INC·Filed 1998·Granted May 16, 2000·122 cites·36 claims
- 0795US8697834B2Polyalkylenepolyamines by homogeneously catalyzed alcohol aminationSCHAUB THOMAS·Filed 2011·Granted Apr 15, 2014·14 cites·17 claims
- 0894US6140422APolyesters including isosorbide as a comonomer blended with other thermoplastic polymersDU PONT·Filed 1998·Granted Oct 31, 2000·70 cites·12 claims
- 0993US6197147B1Process for continuous production of membrane-electrode compositesHOECHST RES & TECH GMBH & CO·Filed 1996·Granted Mar 6, 2001·146 cites·28 claims
- 1092US6541032B1Use of finely divided dye-containing polymers PD as color-imparting constituent in cosmetic compositionsBASF AG·Filed 2000·Granted Apr 1, 2003·44 cites·8 claims
- 1190US11077417B2Microcapsule comprising a polyester-urethane shell and a hydrophobic core materialBASF SE·Filed 2016·Granted Aug 3, 2021·2 cites·20 claims
- 1290US10695734B2Microcapsule comprising a polyester-urethane shell and a hydrophilic core materialBASF SE·Filed 2016·Granted Jun 30, 2020·2 cites·20 claims
- 1388US10323215B2Solid polymer composition obtained by polymerization of an acid group containing monomer in the presence of a polyether compoundBASF SE·Filed 2014·Granted Jun 18, 2019·4 cites·47 claims
- 1484US10344249B2Gel-like polymer composition obtained by polymerizing a monomer containing acid groups in the presence of a polyether compoundBASF SE·Filed 2014·Granted Jul 9, 2019·2 cites·24 claims
- 1583US7638469B2Methods of increasing permeability in carbonatic rock formations with alkanesulfonic acidsBASF SE·Filed 2006·Granted Dec 29, 2009·11 cites·20 claims
- 1683US5906716AMetallized cation exchange membraneHOECHST AG·Filed 1995·Granted May 25, 1999·50 cites·32 claims
- 1781US8986467B2Method for passivating metallic surfaces with aqueous compositions comprising surfactantsVANDERMEULEN GUIDO·Filed 2011·Granted Mar 24, 2015·3 cites·15 claims
- 1880US8048838B2MGDA-based powder mixture or granulate mixtureBASF AG·Filed 2005·Granted Nov 1, 2011·5 cites·5 claims
- 1978US10647945B2Use of a gel-like polymer composition which can be obtained by polymerizing an acid group-containing monomer in the presence of a polyether compound in formulations for automatic dishwashingBASF SE·Filed 2014·Granted May 12, 2020·1 cites·36 claims
- 2078US9228148B2Method for producing molded bodies from sheet steel galvanized on one or both sidesHüFFER STEPHAN·Filed 2009·Granted Jan 5, 2016·8 cites·10 claims
- 2177US7655279B2Carboxylate-containing polymers for metal surface treatmentBASF AG·Filed 2004·Granted Feb 2, 2010·14 cites·14 claims
- 2276US8901066B2Branched polyesters with sulfonate groupsHABERECHT MONIKA·Filed 2012·Granted Dec 2, 2014·2 cites·10 claims
- 2375US10655088B2Solid polymer composition obtained by polymerization of an acid group-containing monomer in the presence of a polyether compoundBASF SE·Filed 2019·Granted May 19, 2020·0 cites·20 claims
- 2475US8420174B2Polymer composition for corrosion protectionGOETHLICH ALEXANDER·Filed 2006·Granted Apr 16, 2013·5 cites·27 claims
- 2574US7905964B2Method for the passivation of metal surfaces with compositions comprising polymers with acid groups and waxesBASF SE·Filed 2006·Granted Mar 15, 2011·3 cites·13 claims
- 2674US7122618B2Quaternary polyamidoamines, the production thereof, corresponding agents and the use thereofFRAUNHOFER GES FORSCHUNG·Filed 2002·Granted Oct 17, 2006·5 cites·26 claims
- 2771US11111464B2Method of manufacturing an automatic dishwashing detergent productRECKITT BENCKISER FINISH BV·Filed 2020·Granted Sep 7, 2021·0 cites·17 claims
- 2869US7390847B2Polymer derivatives for the treatment of metalsBASF SE·Filed 2002·Granted Jun 24, 2008·9 cites·8 claims
- 2968US9487845B2Process for the acid digestion of metal-containing compoundsHEIDENFELDER THOMAS·Filed 2011·Granted Nov 8, 2016·1 cites·16 claims
- 3067US9481742B2Continuous process for the manufacture of highly-branched polymersBASF SE·Filed 2014·Granted Nov 1, 2016·1 cites·17 claims
- 3167US8927669B2Copolymers, method for producing them and their use for treating surfacesPFEIFFER THOMAS·Filed 2007·Granted Jan 6, 2015·2 cites·19 claims
- 3266US6096856APolymer electrolytes and process for their productionHOECHST RES & TECH GMBH & CO·Filed 1996·Granted Aug 1, 2000·31 cites·21 claims
- 3365US6733680B2Use of particulate polymers as filter aids for aqueous liquidsBASF AG·Filed 2001·Granted May 11, 2004·6 cites·26 claims
- 3465US2024018304A1Biodegradable polymersBASF SE·Filed 2021·Application pending·0 cites
- 3564US8568522B2Method of passivating metallic surfaces by means of copolymers having phosphoric acid and/or phosphonic acid groupsKLIPPEL FRANK·Filed 2007·Granted Oct 29, 2013·2 cites·15 claims
- 3664US7749337B2Method for the passivation of metal surfaces with polymers containing acid groupsBASF SE·Filed 2006·Granted Jul 6, 2010·4 cites·20 claims
- 3763US2007176149A1Carboxylate-containing polymers for metal surface treatmentBASF AG CO PENDENCY·Filed 2007·Application pending·0 cites
- 3863US2025236815A1Compositions comprising polymers, polymers, and their useBASF SE·Filed 2022·Application pending·0 cites
- 3961US10689604B2Method of manufacturing an automatic dishwashing detergent productRECKITT BENCKISER FINISH BV·Filed 2015·Granted Jun 23, 2020·0 cites·20 claims
- 4061US7879158B2Nitrogenous polymers for metal surface treatmentBASF SE·Filed 2004·Granted Feb 1, 2011·5 cites·7 claims
- 4161US6214891B1Process for producing a cation-exchanging polymer electrolyte membrane (PEM)HOECHST RES & TECH GMBH & CO·Filed 1997·Granted Apr 10, 2001·16 cites·8 claims
- 4259US12024691B2Fabric care composition comprising hydrophobically modified polyalkyleneimine as dye fixative polymerBASF SE·Filed 2019·Granted Jul 2, 2024·0 cites·18 claims
- 4359US2021289773A1Poly-lysine derivative and its use in solid-based compositionsBASF SE·Filed 2018·Application pending·0 cites
- 4459US2020346147A1Use of polymers as filtering aids and/or stabilizersBASF SE·Filed 2020·Application pending·0 cites
- 4557US8394208B2Carboxylate-containing polymers for metal surface treatmentDIETSCHE FRANK·Filed 2010·Granted Mar 12, 2013·0 cites·14 claims
- 4657US2025002705A1Compositions comprising polymers, polymers, and their useBASF SE·Filed 2022·Application pending·0 cites
- 4756US8372216B2Continuous method for treating the surface of metal stripsBASF SE·Filed 2009·Granted Feb 12, 2013·0 cites·20 claims
- 4856US2010143632A1Coating composition comprising polyethylenimine and poly(meth)acrylic acidBASF SE·Filed 2009·Application pending·0 cites
- 4955US2009078087A1Process for the acid digestion of metal-containing compoundsBASF AG PATENTS TRADEMARKS AND·Filed 2007·Application pending·0 cites
- 5055US2014141269A1Mixtures for coating metal surfaces comprising organic corrosion inhibitorsBASF SE·Filed 2013·Application pending·0 cites
Showing the top 50 of 92 patent records by PatentIndex Score.
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