Inventor · disambiguated record
Manfred Urban
Also filed as: URBAN MANFRED
58 granted patents·1,277 citations·filing 1978–2003
99Inventor score
Top patents by PatentIndex Score
58 records- 0198US5110931AProcess for the preparation of n,n'-dimethylperylene-3,4,9,10-tetracarboxylic diimide in high-hiding pigment formHOECHST AG·Filed 1989·Granted May 5, 1992·84 cites·11 claims
- 0297US5264034APigment preparations based on perylene compoundsHOECHST AG·Filed 1990·Granted Nov 23, 1993·101 cites·20 claims
- 0396US4253839AProcess for the fine distribution of pigments of the dioxazine seriesHOECHST AG·Filed 1978·Granted Mar 3, 1981·34 cites·15 claims
- 0495US4496731AProcess for the preparation of perylene-3,4,9,10-tetracarboxylic acid N,N'-dHOECHST AG·Filed 1983·Granted Jan 29, 1985·30 cites·10 claims
- 0594US5466807APerylene compounds containing sulfonic acid groups process for preparing them and their useHOECHST AG·Filed 1990·Granted Nov 14, 1995·56 cites·15 claims
- 0694US5248774AInner salts based on ammonium and sulfonate groups of perylene-3,4,9,10-tetracarboxylic and derivatives thereofHOECHST AG·Filed 1992·Granted Sep 28, 1993·48 cites·10 claims
- 0794US4431806AProcess for the preparation of pigments of the perylene-3,4,9,10-tetracarboxylic acid diimide series, and their useHOECHST AG·Filed 1981·Granted Feb 14, 1984·28 cites·7 claims
- 0893US5626662AFine division in the preparation of organic pigmentsHOECHST AG·Filed 1995·Granted May 6, 1997·47 cites·18 claims
- 0992US5264032APigment preparationsHOECHST AG·Filed 1992·Granted Nov 23, 1993·58 cites·20 claims
- 1092US4717605ARadiation curable adhesivesMERCK PATENT GMBH·Filed 1985·Granted Jan 5, 1988·82 cites·16 claims
- 1189US6312512B1Quinacridone mixed-crystal pigments of the gamma phaseCLARIANT GMBH·Filed 2000·Granted Nov 6, 2001·29 cites·20 claims
- 1289US5958129APigment formulations and processes for their preparationCLARIANT GMBH·Filed 1998·Granted Sep 28, 1999·44 cites·13 claims
- 1388US5800607AProcess for the preparation of liquid pigment preparationsHOECHST AG·Filed 1996·Granted Sep 1, 1998·34 cites·14 claims
- 1488US5296034AProcess for the production of copper phthalocyanine pigment preparations of the α phaseHOECHST AG·Filed 1993·Granted Mar 22, 1994·28 cites·23 claims
- 1588US4986852APigments and use thereofHOECHST AG·Filed 1988·Granted Jan 22, 1991·31 cites·5 claims
- 1687US5989333AMixed crystal pigments of the quinacridone seriesCLARIANT GMBH·Filed 1998·Granted Nov 23, 1999·29 cites·13 claims
- 1787US5296033AProcess for the production of pigment preparations based on phythalocyanine pigmentsHOECHST AG·Filed 1993·Granted Mar 22, 1994·25 cites·28 claims
- 1883US6174361B1Process for preparing N,N′-dimethylperylene-3,4,9,10-tetracarboxylic diimide in transparent pigment formCLARIANT GMBH·Filed 1999·Granted Jan 16, 2001·25 cites·12 claims
- 1983US5318627AProcess for the preparation of pigment preparations based on C.I. pigment violet 23HOECHST AG·Filed 1993·Granted Jun 7, 1994·38 cites·37 claims
- 2082US5275653APigment preparations based on dioxazine compoundsHOECHST AG·Filed 1992·Granted Jan 4, 1994·19 cites·10 claims
- 2181US6221150B1Perylene compounds and pigment preparationsCLARIANT GMBH·Filed 1999·Granted Apr 24, 2001·20 cites·17 claims
- 2281US5492563AFine division in the preparation of copper phthalocyanine pigmentsHOECHST AG·Filed 1995·Granted Feb 20, 1996·20 cites·16 claims
- 2380US5614014AProcess for the preparation of Quinacridone pigmentsHOECHST AG·Filed 1995·Granted Mar 25, 1997·19 cites·24 claims
- 2480US4705572AProcess for the preparation of pigments of the anthanthrone seriesHOECHST AG·Filed 1986·Granted Nov 10, 1987·14 cites·5 claims
- 2579US6241814B1Process for preparing quinacridone pigmentsCLARIANT GMBH·Filed 1999·Granted Jun 5, 2001·19 cites·17 claims
- 2679US5591258APreparation of linear, unsubstituted quinacridone pigments of the β-phaseHOECHST AG·Filed 1994·Granted Jan 7, 1997·14 cites·17 claims
- 2779US5071483AProcess for the preparation of pigment preparations of the anthanthrone seriesHOECHST AG·Filed 1989·Granted Dec 10, 1991·14 cites·11 claims
- 2878US5071482APigment preparationsHOECHST AG·Filed 1989·Granted Dec 10, 1991·13 cites·15 claims
- 2975US7056378B2Method for producing vattable organic pigmentsCLARIANT GMBH·Filed 2003·Granted Jun 6, 2006·8 cites·11 claims
- 3075US6521756B2Process for preparing perylene-3,4,9,10-tetracarboxylic diimide in transparent pigment formCLARIANT GMBH·Filed 2001·Granted Feb 18, 2003·8 cites·10 claims
- 3175US5755872AProcess for preparing quinacridone pigmentsHOECHST AG·Filed 1997·Granted May 26, 1998·16 cites·16 claims
- 3275US4797162AProcess for the preparation of perylene-3,4,9,10-tetracarboxylic acid N,N'-dHOECHST AG·Filed 1986·Granted Jan 10, 1989·11 cites·3 claims
- 3375US4588814AProcess for the preparation of 3,4,9,10-perylenetetracarboxylic acid diimideHOECHST AG·Filed 1984·Granted May 13, 1986·10 cites·1 claims
- 3473US5662739AUse of fatty acid taurides for the dispersion of polycyclic pigmentsHOECHST AG·Filed 1995·Granted Sep 2, 1997·14 cites·13 claims
- 3573US4655845AProcess for preparing organic pigments having excellent application propertiesHOECHST AG·Filed 1985·Granted Apr 7, 1987·10 cites·4 claims
- 3672US5123966AMixed crystal pigments based on halogenated perylenetetracarboximidesHOECHST AG·Filed 1990·Granted Jun 23, 1992·11 cites·17 claims
- 3770US6646126B2Process for preparing perylene-3,4,9,10-tetracarboxylic diimide in transparent pigment formCLARIANT GMBH·Filed 2002·Granted Nov 11, 2003·6 cites·7 claims
- 3869US6251553B1Use of mixed-crystal pigments of the quinacridone series in electrophotographic toners and developers, powder coatings and inkjet inksCLARIANT GMBH·Filed 1999·Granted Jun 26, 2001·27 cites·12 claims
- 3967US5755874AProcess for preparing linear unsubstituted β-phase quinacridone pigmentsHOECHST AG·Filed 1997·Granted May 26, 1998·10 cites·12 claims
- 4064US6413309B1Pigment preparations comprising two or more perylene compoundsCLARIANT GMBH·Filed 2000·Granted Jul 2, 2002·11 cites·20 claims
- 4164US5746820ASurface-treated quinacridone and dioxazine pigmentsHOECHST AG·Filed 1997·Granted May 5, 1998·9 cites·19 claims
- 4264US4683568AMethod of monitoring computer elements, particularly microprocessorsBOSCH GMBH ROBERT·Filed 1984·Granted Jul 28, 1987·26 cites·4 claims
- 4363US4704537APassive dosimeterKERNFORSCHUNGSZ KARLSRUHE·Filed 1985·Granted Nov 3, 1987·14 cites·3 claims
- 4462US5112404APigment formulations, processes for their preparation and their useHOECHST AG·Filed 1990·Granted May 12, 1992·22 cites·12 claims
- 4562US4578202ACutting oil for working nonferrous metals by cuttingMERCK PATENT GMBH·Filed 1983·Granted Mar 25, 1986·14 cites·18 claims
- 4657US4229583AProcess for preparing thio-indigo dyestuffsHOECHST AG·Filed 1978·Granted Oct 21, 1980·3 cites·6 claims
- 4754US5035747AMixed crystal pigments of the anthanthrone series, and preparation and use thereofHOECHST AG·Filed 1989·Granted Jul 30, 1991·9 cites·10 claims
- 4853US4798627ADampening agent for offset printingMERCK PATENT GMBH·Filed 1986·Granted Jan 17, 1989·13 cites·32 claims
- 4953US4650879AProcess for the preparation of perylene-3,4,9,10-tetracarboxylic dianhydrideHOECHST AG·Filed 1986·Granted Mar 17, 1987·4 cites·2 claims
- 5049US5932727AProcess for the preparation of dioxazine compoundsCLARIANT GMBH·Filed 1997·Granted Aug 3, 1999·4 cites·11 claims
Showing the top 50 of 58 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →