Inventor · disambiguated record
Hermann Henk
Also filed as: HENK HERMANN
38 granted patents·194 citations·filing 1978–2001
97Inventor score
Top patents by PatentIndex Score
38 records- 0194US4556707ATriazole-group-containing disazo reactive dyestuffBAYER AG·Filed 1984·Granted Dec 3, 1985·26 cites·2 claims
- 0278US4772687AMetal complex dyestuffs useful as solvent, direct, pigment or fiber-reactive dyesBAYER AG·Filed 1986·Granted Sep 20, 1988·13 cites·9 claims
- 0373US4988803AFiber reactive azo dyes containing a morpholinyl-, piperazinyl- or piperidnyl- substituted flurotriazinyl radicalBAYER AG·Filed 1990·Granted Jan 29, 1991·13 cites·7 claims
- 0471US6852135B2Water-soluble fiber-reactive colorants, method for the production thereof, and use their useDYSTAR TEXTILFARBEN GMBH & CO·Filed 2001·Granted Feb 8, 2005·7 cites·14 claims
- 0570US5274083APolyfunctional fibre-reactive dyestuffsBAYER AG·Filed 1991·Granted Dec 28, 1993·10 cites·11 claims
- 0668US4990615ATriphendioxazine and triphendithiazine direct dyestuffsBAYER AG·Filed 1989·Granted Feb 5, 1991·8 cites·5 claims
- 0766US4329282AFluoro-triazine-containing fibre-reactive disazo dyestuffsBAYER AG·Filed 1978·Granted May 11, 1982·6 cites·3 claims
- 0865US4514188AUse of disazo-copper complex dyestuffs for dyeing natural and synthetic materialsBAYER AG·Filed 1983·Granted Apr 30, 1985·11 cites·7 claims
- 0964US6060591AWater-soluble fiber-reactive dyes, processes for their preparation, and their useDYSTAR TEXTILFARBEN GMBH & CO·Filed 1997·Granted May 9, 2000·10 cites·16 claims
- 1062US5460631ABifunctional reactive dyestuff mixtureBAYER AG·Filed 1994·Granted Oct 24, 1995·7 cites·11 claims
- 1162US5270454AReactive dyestuffsBAYER AG·Filed 1991·Granted Dec 14, 1993·7 cites·10 claims
- 1260US5340928AReactive dyestuff containing triazinyl and halopyrimidine moietiesBAYER AG·Filed 1992·Granted Aug 23, 1994·6 cites·13 claims
- 1359US5391716AMonoazo 2-hydroxy-pyridone-containing reactive dyestuffsBAYER AG·Filed 1993·Granted Feb 21, 1995·6 cites·6 claims
- 1458US5097021AReactive dyestuffs where the reactive radical carries a cyclic nitrogen heterocycleBAYER AG·Filed 1991·Granted Mar 17, 1992·5 cites·4 claims
- 1558US4294580AReactive dyestuffs, their preparation and their use for dyeing materials containing OH or NBAYER AG·Filed 1979·Granted Oct 13, 1981·14 cites·9 claims
- 1656US4337195AAzo dyestuffsBAYER AG·Filed 1979·Granted Jun 29, 1982·5 cites·7 claims
- 1755US5502174AReactive dyestuffs based on a substituted barbituric acidBAYER AG·Filed 1994·Granted Mar 26, 1996·5 cites·9 claims
- 1855US4540776AReactive fluorotriazinylaminonaphthotriazolyphenylazopyridone or pyrimidone dyestuffsBAYER AG·Filed 1984·Granted Sep 10, 1985·4 cites·2 claims
- 1954US5414131AProcess for preparing [5-amino-2-(2-hydroxyethylamino)-phenyl](2-hydroxyethyl)sulphoneBAYER AG·Filed 1993·Granted May 9, 1995·4 cites·7 claims
- 2054US4460505ADyestuffs, processes for their preparation and their use for dyeing materials containing hydroxyl groups or nitrogenBAYER AG·Filed 1981·Granted Jul 17, 1984·4 cites·3 claims
- 2149US4563518AFibre-reactive fluorothriazine-group-containing azo dyestuffsBAYER AG·Filed 1980·Granted Jan 7, 1986·3 cites·5 claims
- 2248US5166325APolyazo reactive dyestuffs containing the 4-fluoro-5-chloropyrimidin-6-yl fiber reactive radical and the use thereof to dye or print hydroxyl-or amino-containing materialBAYER AG·Filed 1991·Granted Nov 24, 1992·3 cites·7 claims
- 2347US5093481AFiber reactive azo dyestuffsBAYER AG·Filed 1988·Granted Mar 3, 1992·3 cites·4 claims
- 2445US5095102A6-substituted sulphonyl-8-sulpho-2-naphthyl monoazo reactive dyestuffsBAYER AG·Filed 1990·Granted Mar 10, 1992·3 cites·2 claims
- 2544US5051507AProcess for the preparation of 4,5,6-trichloropyrimidineBAYER AG·Filed 1990·Granted Sep 24, 1991·2 cites·3 claims
- 2642US5091515AProcess for the preparation of substituted 2,4-diamino-6-fluoro-s-triazinesBAYER AG·Filed 1990·Granted Feb 25, 1992·2 cites·5 claims
- 2740US4670548ASulfo-group-containing trisazo dyestuffsBAYER AG·Filed 1980·Granted Jun 2, 1987·2 cites·1 claims
- 2839US4548761AProcess for the preparation of 1-aminobenzene-2-sulphonic acidsBAYER AG·Filed 1983·Granted Oct 22, 1985·1 cites·6 claims
- 2937US5241056AReactive monoazo dyestuffs which contain alkylbenzene and chlorofluoro pyrimidine substituentsBAYER AG·Filed 1992·Granted Aug 31, 1993·1 cites·6 claims
- 3035US4777247AHeavy metal-containing monoazo dyesBAYER AG·Filed 1987·Granted Oct 11, 1988·1 cites·8 claims
- 3132US5132410AAzo reactive dyestuffs containing a fluorotriazinyl groupBAYER AG·Filed 1990·Granted Jul 21, 1992·0 cites·4 claims
- 3231US4978747AColorants obtained by reacting a NH2 -containing dyestuff with a diisocyanate followed by reaction of this adduct with a diamineBAYER AG·Filed 1989·Granted Dec 18, 1990·0 cites·12 claims
- 3330US5256773ACopper complexes of 4-fluoro-5-chloropyrimidin-6-yl containing ractive mondazo dyesBAYER AG·Filed 1992·Granted Oct 26, 1993·0 cites·4 claims
- 3430US5220057AFormazan dyestuffsBAYER AG·Filed 1991·Granted Jun 15, 1993·0 cites·11 claims
- 3530US5176718AReactive dyestuff preparations containing pyridine derivativesBAYER AG·Filed 1991·Granted Jan 5, 1993·0 cites·11 claims
- 3629US5498700ANaphthylazonaphthol dyes which contain a 5-chloro-6-fluoropyrimidin-4-yl reactive groupBAYER AG·Filed 1994·Granted Mar 12, 1996·0 cites·6 claims
- 3728US6046311AWater-soluble fiber-reactive dyes, preparation thereof and use thereofDYSTAR TEXTILFARBEN GMBH & CO·Filed 1998·Granted Apr 4, 2000·0 cites·18 claims
- 3828US5278293AAzo dyestuffs and intermediate products for their preparationBAYER AG·Filed 1990·Granted Jan 11, 1994·2 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →