Inventor · disambiguated record
Hartmut Springer
Also filed as: FEESS ERICH · SPRINGER HARTMUT
63 granted patents·294 citations·filing 1972–1993
98Inventor score
Top patents by PatentIndex Score
63 records- 0187US4952688AWater-soluble phthalocyanine compoundsHOECHST AG·Filed 1988·Granted Aug 28, 1990·20 cites·6 claims
- 0285US4237050AProcess for the preparation of water-soluble phthalocyanine dyestuffsHOECHST AG·Filed 1979·Granted Dec 2, 1980·12 cites·12 claims
- 0381US4033980APhthalocyanine dyestuffs and process for preparing themHOECHST AG·Filed 1972·Granted Jul 5, 1977·10 cites·3 claims
- 0480US4046754AWater-soluble naphyhyl-azo-pyrazolone fiber reactive dyestuffsHOECHST AG·Filed 1975·Granted Sep 6, 1977·10 cites·7 claims
- 0579US4898933AWater-soluble fiber-reactive aminotriazine and vinylsulfone containing azo dyestuffs having carboxy- or carbamoyl pyridinium groupsHOECHST AG·Filed 1989·Granted Feb 6, 1990·14 cites·4 claims
- 0674US5003053AWater-soluble monoazo compounds containing a p-aminophenylamino- and chloro- or fluoro-substituted triazinylamino group and a fiber-reactive group selected from the vinylsulfone series, suitable as dyestuffsHOECHST AG·Filed 1990·Granted Mar 26, 1991·13 cites·11 claims
- 0773US4786728AWater-soluble triphendioxazine compoundsHOECHST AG·Filed 1986·Granted Nov 22, 1988·10 cites·15 claims
- 0872US4350632AWater-soluble phthalocyanine compoundsHOECHST AG·Filed 1981·Granted Sep 21, 1982·9 cites·8 claims
- 0971US5227475AWater-soluble fiber-reactive dyestuffs containing a cyanamido-substituted triazinylamino-grouping, and a process for dyeing with the use of these dyesHOECHST AG·Filed 1990·Granted Jul 13, 1993·12 cites·17 claims
- 1070US4139527AFiber reactive monoazo dyestuffs containing a --SO2 --CH2 --CH2 --O--PO3 H2 groupHOECHST AG·Filed 1973·Granted Feb 13, 1979·6 cites·9 claims
- 1168US4693726AProcess for dyeing or printing cellulose fibers or cellulose blend fibers with pyridinium-triazine reactive dye, axable without alkaliHOECHST AG·Filed 1986·Granted Sep 15, 1987·15 cites·18 claims
- 1265US4806127AWater-soluble disazo compounds, containing triazinyl pyridinium group processes for their preparation and their use for dyeing celluloseHOECHST AG·Filed 1987·Granted Feb 21, 1989·8 cites·13 claims
- 1364US5349057AWater soluble azo dyes containing a cyanoamino-triazinyl-amino group and a fiber-reactive of the sulfone seriesHOECHST AG·Filed 1990·Granted Sep 20, 1994·8 cites·16 claims
- 1463US4762916AWater-soluble dis-, tris- and tetra-azo compounds containing fiber-reactive chloro-and fluro-triazinyl groups and vinylsulfone groups or derivatives thereof, suitable as dyestuffsHOECHST AG·Filed 1986·Granted Aug 9, 1988·7 cites·17 claims
- 1562US5093483AWater-soluble azo compounds having a 6-carboxy-2-naphthal as coupling components, suitable as dyestuffsHOECHST AG·Filed 1990·Granted Mar 3, 1992·7 cites·10 claims
- 1661US4745187AProcess for the preparation of water-soluble phthalocyanine dyestuffsHOECHST AG·Filed 1987·Granted May 17, 1988·6 cites·12 claims
- 1760US4861344AReactive water-soluble azo dyes containing carboxy- or carbamoyl-pydridinium groups for dyeing textilesHOECHST AG·Filed 1987·Granted Aug 29, 1989·6 cites·8 claims
- 1860US4740592AWater-soluble azo compounds containing fiber-reactive groups and having a sulfo-naphthal coupling component with a triazinylamino substituent suitable as dyestuffsHOECHST AG·Filed 1986·Granted Apr 26, 1988·5 cites·6 claims
- 1960US4045428AWater-soluble reactive naphthylazonaphthyl dyestuffsHOECHST AG·Filed 1975·Granted Aug 30, 1977·5 cites·4 claims
- 2059US5047515AWater-soluble containing a fiber-reactive triazine radical and 6-carboxy-2-naphthol as coupling component, suitable as dyesHOECHST AG·Filed 1990·Granted Sep 10, 1991·6 cites·7 claims
- 2159US4906736ACopper complex formazan compounds containing a phenylaminotriazinylamino group with a fiber-reactive group of the vinylsulfone series and an alkyl amino substituent in the phenyl moiety suitable as fiber-reactive dyestuffsHOECHST AG·Filed 1988·Granted Mar 6, 1990·6 cites·20 claims
- 2258US4898944APrecursors for the preparation of water-soluble triphendioxazine dyestuffsHOECHST AG·Filed 1988·Granted Feb 6, 1990·5 cites·10 claims
- 2356US4118186AProcess for the fixation of organic dyestuffs on materials having a fibrous structureHOECHST AG·Filed 1977·Granted Oct 3, 1978·4 cites·5 claims
- 2455US4785098AWater-soluble triphendioxazine compoundsHOECHST AG·Filed 1985·Granted Nov 15, 1988·5 cites·20 claims
- 2554US5015731ACopper complex formazan compounds containing a cyanamido-S-triazinylamino radical and a fiber-reactive group of the vinylsulfone series, suitable as dyesHOECHST AG·Filed 1990·Granted May 14, 1991·5 cites·10 claims
- 2652US5302708AWater-soluble phthalocyanine dyesHOECHST AG·Filed 1992·Granted Apr 12, 1994·5 cites·9 claims
- 2751US4873320AWater-soluble monoazo and disazo dyes containing a fiber-reactive 2-chloro-4-(nitrophenylamino-alkylamino)-s-triazin-6-ylamino grouping with a fiber-reactive group of the vinylsulfone series as a substituent in the nitrophenyl moietyHOECHST AG·Filed 1987·Granted Oct 10, 1989·4 cites·16 claims
- 2851US4394129AProcess for the finishing of fibrous materials: sulfonyl- or carbonyl-cyanamides of dyestuffsHOECHST AG·Filed 1981·Granted Jul 19, 1983·6 cites·1 claims
- 2950US5268458AAzo compounds, having a 1-sulfo-6-carboxy-2-naphthyl group as the diazo component and a halogen-substituted heterocyclic fiber-reactive groupHOECHST AG·Filed 1990·Granted Dec 7, 1993·4 cites·8 claims
- 3049US4785099AWater-soluble triphendioxazine compoundsHOECHST AG·Filed 1986·Granted Nov 15, 1988·4 cites·6 claims
- 3149US4782150AWater-soluble triphendioxazine compoundsHOECHST AG·Filed 1987·Granted Nov 1, 1988·4 cites·18 claims
- 3249US4775746AWater-soluble monoazo compounds containing a fiber-reactive group of the vinylsulfone series and having a sulfonaphthol coupling component with a phenylaminotriazinylamino substituent, suitable as dyestuffsHOECHST AG·Filed 1986·Granted Oct 4, 1988·3 cites·3 claims
- 3349US4757136AWater-soluble Azo compounds containing fiber-reactive groups and having a sulfo-naphthol coupling component with a triazinylamino substituent suitable as dyestuffsHOECHST AG·Filed 1986·Granted Jul 12, 1988·3 cites·3 claims
- 3447US5166338AWater-soluble fiber-reactive dyes and preparation and use thereofHOECHST AG·Filed 1991·Granted Nov 24, 1992·3 cites·7 claims
- 3546US4845202AWater-soluble disazo compounds containing 3-carboxy or 3-carbamoylpyridium-s-triazinyl groups and fiber-reactive groups of the vinyl sulfone series suitable as dyestuffsHOECHST AG·Filed 1987·Granted Jul 4, 1989·3 cites·16 claims
- 3645US4185012AWater-soluble, fibre-reactive copper complex disazo dyestuffsHOECHST AG·Filed 1976·Granted Jan 22, 1980·2 cites·6 claims
- 3744US4851527AWater-soluble triphendioxazine compoundsHOECHST AG·Filed 1986·Granted Jul 25, 1989·3 cites·16 claims
- 3843US5043435AFiber-reactive benzotriazolyl-phenyl diazonium compounds suitable as diazo compounds for the preparation of azo dyes, and process for preparing themHOECHST AG·Filed 1990·Granted Aug 27, 1991·2 cites·4 claims
- 3942US4774333AWater-soluble triphendioxazine compounds and sulfonyl-containing precursors thereof, processes for the preparation thereof and use of the triphendioxazines as dyesHOECHST AG·Filed 1987·Granted Sep 27, 1988·2 cites·14 claims
- 4040US5290922ADisazo compounds containing a cyanoamidotriazinyl radical as a bridging member (middle component) and fiber-reactive groups of the vinylsulfone series, suitable as dyestuffsHOECHST AG·Filed 1991·Granted Mar 1, 1994·3 cites·12 claims
- 4139US4397649AWater-soluble phthalocyanine sulfonyl cyanamide compounds, process for their manufacture and their use as dyestuffsHOECHST AG·Filed 1981·Granted Aug 9, 1983·6 cites·3 claims
- 4238US5010180AWater-soluble azo compounds having a N-(phenethyl)-amido-carbonyl-methoxyphenyl radical, substituted by a fiber-reactive group of the vinylsulfone series, suitable as fiber-reactive dyestuffsHOECHST AG·Filed 1990·Granted Apr 23, 1991·2 cites·12 claims
- 4338US4851542AN1 -substituted 1H-benzytriazole hydroxyethyl sulfone compounds, a process for their preparation and their use for the preparation of dyestuddsHOECHST AG·Filed 1987·Granted Jul 25, 1989·1 cites·10 claims
- 4437US4885385ASulfonyl containing compounds suitable as precurors for water-soluble fiber-reactive triphendioxazine compoundsHOECHST AG·Filed 1988·Granted Dec 5, 1989·1 cites·11 claims
- 4537US4816574AWater-soluble triphendioxazine compoundsHOECHST AG·Filed 1987·Granted Mar 28, 1989·1 cites·19 claims
- 4637US4808193AProcess for dyeing hydroxy-containing fiber material with water-soluble dis-azo reactive dye compoundHOECHST AG·Filed 1988·Granted Feb 28, 1989·3 cites·21 claims
- 4737US3966704ANaphthylazo naphthyl copper complex dyestuffsHOECHST AG·Filed 1973·Granted Jun 29, 1976·1 cites·1 claims
- 4836US4946947AWater-soluble azo compounds containing a benzotiazol-1-yl phenyl moiety as a diazo component which carry a fiber-reactive group of the vinylsulfone seriesSPRINGER HARTMUT·Filed 1989·Granted Aug 7, 1990·2 cites·10 claims
- 4935US5290923AMonoazo reactive dye which contains a dicyanoaminotriazinyl group and a group of the vinylsulfone seriesHOECHST AG·Filed 1991·Granted Mar 1, 1994·2 cites·10 claims
- 5035US5102993AWater-soluble disazo compounds, having a fiber-reactive group of the vinylsulfone series, suitable as dyestuffsHOECHST AG·Filed 1990·Granted Apr 7, 1992·1 cites·18 claims
Showing the top 50 of 63 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →