Inventor · disambiguated record
Rolf Wehrmann
Also filed as: WEHRMANN ROLF
106 granted patents·38 pending applications·1,842 citations·filing 1989–2021
99Inventor score
Files withBAYER AG49COVESTRO DEUTSCHLAND AG35BAYER MATERIALSCIENCE AG14WEHRMANN ROLF8HEUER HELMUT WERNER6
Top patents by PatentIndex Score
144 records- 0196US7332560B2Thermoplastic molding compositions having reduced water absorptionBAYER MATERIALSCIENCE AG·Filed 2005·Granted Feb 19, 2008·23 cites·17 claims
- 0295US7358326B2Multifunctional 3,4-alkylenedioxythiophene derivatives and electrically conductive polymers containing themSTARCK H C GMBH·Filed 2004·Granted Apr 15, 2008·51 cites·10 claims
- 0395US5194393AOptical biosensor and method of useBAYER AG·Filed 1990·Granted Mar 16, 1993·208 cites·12 claims
- 0494US8399547B2Polymer composition with heat-absorbing properties and high stabilityMEYER ALEXANDER·Filed 2010·Granted Mar 19, 2013·11 cites·16 claims
- 0593US8158745B2Polycarbonates having rearrangement structures, cyclic and linear oligomers and also flow behaviorWEHRMANN ROLF·Filed 2009·Granted Apr 17, 2012·14 cites·10 claims
- 0692US9969879B2Copolycarbonate compositions with branch structures and linear oligomers and improved rheological propertiesCOVESTRO DEUTSCHLAND AG·Filed 2015·Granted May 15, 2018·4 cites·15 claims
- 0792US7425358B2Copolycarbonates having improved flowabilityBAYER MATERIALSCIENCE AG·Filed 2005·Granted Sep 16, 2008·14 cites·1 claims
- 0889US10676613B2Poycarbonate compositions containing isosorbide diestersCOVESTRO DEUTSCHLAND AG·Filed 2017·Granted Jun 9, 2020·2 cites·9 claims
- 0989US5766515AConductive coatingsBAYER AG·Filed 1997·Granted Jun 16, 1998·209 cites·11 claims
- 1088US5917279AIntermediate layer in electroluminescent arrangements containing finely divided inorganic particlesBAYER AG·Filed 1996·Granted Jun 29, 1999·106 cites·10 claims
- 1185US11279812B2Graphite-containing polycarbonate compositions containing a new type of flow promoterCOVESTRO DEUTSCHLAND AG·Filed 2018·Granted Mar 22, 2022·1 cites·10 claims
- 1285US8470934B2Polycarbonate compositions having improved surface hardnessHEUER HELMUT-WERNER·Filed 2011·Granted Jun 25, 2013·4 cites·12 claims
- 1385US7345133B2Branched polycarbonatesBAYER MATERIALSCIENCE AG·Filed 2005·Granted Mar 18, 2008·6 cites·4 claims
- 1484US5650456ACoumarin derivatives, a method of preparing them and their use as intermediatesBAYER AG·Filed 1996·Granted Jul 22, 1997·30 cites·12 claims
- 1583US7183419B23,4-dioxythiophene derivativesSTARCK H C GMBH CO KG·Filed 2004·Granted Feb 27, 2007·12 cites·9 claims
- 1683US6248457B1Copolymers based on vinyl units and use thereof in electroluminescent devicesBAYER AG·Filed 1996·Granted Jun 19, 2001·20 cites·10 claims
- 1782US6586556B2Use of copolycarbonatesBAYER AG·Filed 2001·Granted Jul 1, 2003·17 cites·13 claims
- 1881US10472516B2Improving the flowability of thermoconductive polycarbonate compositionsCOVESTRO DEUTSCHLAND AG·Filed 2016·Granted Nov 12, 2019·1 cites·14 claims
- 1980US6083635AConductive coatingsBAYER AG·Filed 1998·Granted Jul 4, 2000·125 cites·20 claims
- 2079US9676716B2Polycarbonate having improved thermal and mechanical properties and reduced coefficients of thermal expansionHEUER HELMUT-WERNER·Filed 2010·Granted Jun 13, 2017·6 cites·12 claims
- 2178US10119009B2Flowability of polycarbonate compositionsCOVESTRO DEUTSCHLAND AG·Filed 2015·Granted Nov 6, 2018·1 cites·9 claims
- 2277US6157479AElectrochromic assembly based on poly(3,4-ethylenedioxythiophene) derivatives and a UV-stabilized gel electrolyteBAYER AG·Filed 1999·Granted Dec 5, 2000·41 cites·16 claims
- 2376US9139730B2(Co)polycarbonates with improved optical propertiesWEHRMANN ROLF·Filed 2010·Granted Sep 22, 2015·2 cites·9 claims
- 2476US5308736ADye-donor element for use according to thermal dye sublimation transferAGFA GEVAERT NV·Filed 1992·Granted May 3, 1994·19 cites·10 claims
- 2575US10974498B2Additive fabrication process with a structural material comprising an IR absorberCOVESTRO DEUTSCHLAND AG·Filed 2017·Granted Apr 13, 2021·1 cites·8 claims
- 2675US8487025B2Branched melt polycarbonate with low content of defective structuresKONRAD STEPHAN·Filed 2011·Granted Jul 16, 2013·2 cites·13 claims
- 2775US6376105B1Electroluminescent arrangementsBAYER AG·Filed 1997·Granted Apr 23, 2002·108 cites·8 claims
- 2874US6584714B1Fluorescent, structured shaped bodiesBAYER AG·Filed 1999·Granted Jul 1, 2003·38 cites·12 claims
- 2973US6403239B2(Co)polymers based on vinyl units and use thereof in electroluminescent devicesBAYER AG·Filed 2001·Granted Jun 11, 2002·14 cites·4 claims
- 3072US11993061B2Multilayer composite material containing special polycarbonate compositions as a matrix materialCOVESTRO DEUTSCHLAND AG·Filed 2021·Granted May 28, 2024·0 cites·11 claims
- 3172US9651712B2Polymer composition with heat-absorbing propertiesBAYER IP GMBH·Filed 2012·Granted May 16, 2017·1 cites·12 claims
- 3272US7923475B2Electroluminescent arrangementsSTARCK H C GMBH·Filed 2002·Granted Apr 12, 2011·12 cites·4 claims
- 3372US6534200B1Electroluminescent systems with polynulcear metal complexesBAYER AG·Filed 1999·Granted Mar 18, 2003·13 cites·22 claims
- 3472US6368731B2Electroluminescent assemblies using boron chelates of 8-aminoquinoline derivativesBAYER AG·Filed 1999·Granted Apr 9, 2002·16 cites·12 claims
- 3571US6452711B1Electro chromic assembly based on poly (3,4-ethylenedioxythiophene derivatives in the electrochromic layer and the ion-storage layerBAYER AG·Filed 1999·Granted Sep 17, 2002·38 cites·13 claims
- 3670US8163822B2Polycarbonate composition with improved melt-flowabilityKONRAD STEPHAN·Filed 2010·Granted Apr 24, 2012·1 cites·16 claims
- 3770US7691477B2Polyformals as a coextrusion protective layer on polycarbonateBAYER MATERIALSCIENCE AG·Filed 2005·Granted Apr 6, 2010·1 cites·13 claims
- 3869US6507428B1Arrangement based on poly-(3,4-dioxythiophene) derivatives which are electrochromically switched with protonsBAYER AG·Filed 1999·Granted Jan 14, 2003·24 cites·8 claims
- 3969US6376107B1Electroluminescent arrangement using doped blend systemsBAYER AG·Filed 1999·Granted Apr 23, 2002·24 cites·17 claims
- 4068US6316130B1Electroluminescent assemblies using azomethine-metal complexesBAYER AG·Filed 1999·Granted Nov 13, 2001·36 cites·12 claims
- 4167US6646101B2Use of copolycarbonatesBAYER AG·Filed 2002·Granted Nov 11, 2003·6 cites·5 claims
- 4267US6403741B1UV-stabilized electrochromic assembly based on poly(3,4-ethylenedioxythiophene) derivativesBAYER AG·Filed 1999·Granted Jun 11, 2002·35 cites·14 claims
- 4367US6327070B1Electrochromic assembly based on poly(3,4-ethylenedioxythiophene) derivatives in combination with a lithium niobate counterelectrodeBAYER AG·Filed 1999·Granted Dec 4, 2001·33 cites·15 claims
- 4466US6503643B1Electro-luminescent arrangements with thiophene carboxylate metal complexesBAYER AG·Filed 1999·Granted Jan 7, 2003·18 cites·13 claims
- 4566US6391481B1Auxiliary layers for electroluminescent assembliesBAYER AG·Filed 1999·Granted May 21, 2002·76 cites·7 claims
- 4665US2024026074A1Polycarbonate Compositions Containing Titanium Dioxide and Glass Flakes Comprising a Titanium Dioxide CoatingCOVESTRO DEUTSCHLAND AG·Filed 2021·Application pending·0 cites
- 4764US7968671B2Alkylphenol-terminated copolycarbonates, processes for preparing the same, molding compositions containing the same, and articles prepared therefromBAYER MATERIALSCIENCE AG·Filed 2009·Granted Jun 28, 2011·3 cites·15 claims
- 4864US6894142B2Highly branched (co)polycarbonates having improved flowabilityBAYER MATERIALSCIENCE AG·Filed 2004·Granted May 17, 2005·5 cites·6 claims
- 4964US2023416526A1Polycarbonate Compositions Containing Titanium Dioxide and Epoxy Group-Containing TriacylglycerolCOVESTRO DEUTSCHLAND AG·Filed 2021·Application pending·0 cites
- 5064US2014357767A1Polycarbonate compositions with improved melt stabilityWEHRMANN ROLF·Filed 2014·Application pending·0 cites
Showing the top 50 of 144 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →