Inventor · disambiguated record
Manfred Hahnke
Also filed as: HAEHNKE MANFRED · HAHNKE MANFRED
30 granted patents·322 citations·filing 1974–1992
97Inventor score
Top patents by PatentIndex Score
30 records- 0194US4557732AProcess for spin-dyeing of acid-modified polymers of acrylonitrile by the wet-spinning procedure using quaternary ammonium or cyclammonium dyestuffs of low M value and high cation weight having two or three said ammonium or cyclammonium groupsHOECHST AG·Filed 1983·Granted Dec 10, 1985·59 cites·9 claims
- 0293US4046752AProcess for preparing an azo compound from a 2-aminothiazole diazo componentHOECHST AG·Filed 1975·Granted Sep 6, 1977·22 cites·3 claims
- 0388US4061464AProcess for the preparation of dyestuff compositionsHOECHST AG·Filed 1975·Granted Dec 6, 1977·14 cites·2 claims
- 0486US4705524AMixtures of water-soluble fiber-reactive dyes and use thereof for dyeing: dioxazine and disazo dyesHOECHST AG·Filed 1986·Granted Nov 10, 1987·23 cites·14 claims
- 0582US4445904AProcess for continuously dyeing in the gel state fiber material of acrylonitrile polymers spun from organic solvents with carbinol- or anhydro base of basic dyeHOECHST AG·Filed 1982·Granted May 1, 1984·14 cites·9 claims
- 0677US4344879AQuaternary and basic azamethine compounds and their use as colorantsHOECHST AG·Filed 1980·Granted Aug 17, 1982·12 cites·6 claims
- 0775US3996192ASpin-dyeing of acrylonitrile homopolymers and copolymersHOECHST AG·Filed 1975·Granted Dec 7, 1976·14 cites·14 claims
- 0873US4563191AProcess for dyeing, in the gel state, fiber material composed of wet spun acrylonitrile polymers using dyes with two basic groupsHOECHST AG·Filed 1984·Granted Jan 7, 1986·15 cites·19 claims
- 0971US5352246ADye composition containing a mixture of water-soluble fiber-reactive dyes and method of dyeing with said dye compositionHOECHST AG·Filed 1992·Granted Oct 4, 1994·14 cites·18 claims
- 1071US4872883AMixtures of monoazo dyestuffsBAYER AG·Filed 1988·Granted Oct 10, 1989·9 cites·20 claims
- 1170US4548613AYellow disperse dyestuff mixtures and dyeing processHOECHST CO AMERICAN·Filed 1984·Granted Oct 22, 1985·28 cites·18 claims
- 1266US4607071AProcess for spin-dyeing of acid-modified polymers of copolymers of acrylonitrile using rapid-fixing di-quaternary cationic dyesHOECHST AG·Filed 1985·Granted Aug 19, 1986·15 cites·16 claims
- 1363US5071443ABlue azo dyestuff mixture for strong blue color on hydrophobic fibersCASSELLA FARBWERKE MAINKUR AG·Filed 1990·Granted Dec 10, 1991·8 cites·14 claims
- 1460US4872882ADyeing formulations of mixtures of red disperse dyes for the washfast dyeing of polyester fibers or mixtures thereof with cellulose fibers: benzo-di-furanone and azo dyesHOECHST AG·Filed 1988·Granted Oct 10, 1989·6 cites·5 claims
- 1557US4985044AMulti-component mixtures of blue disperse azo dyes for the dyeing of synthetic fibersHOECHST AG·Filed 1989·Granted Jan 15, 1991·5 cites·20 claims
- 1657US4567252AWater-insoluble naphthol monoazo dyestuffCASSELLA FARBWERKE MAINKUR AG·Filed 1983·Granted Jan 28, 1986·5 cites·4 claims
- 1750US4689050AMixtures of blue disperse azo dyestuffs for dyeing synthetic fibersHOECHST AG·Filed 1985·Granted Aug 25, 1987·4 cites·17 claims
- 1850US4062877AProcess for the preparation of violet dyestuffs of the triphenylmethane seriesHOECHST AG·Filed 1976·Granted Dec 13, 1977·3 cites·5 claims
- 1950US4041054AProcess for the preparation of symmetric 4-halogen-4',4"-diarylamino-triphenylmethane compoundsHOECHST AG·Filed 1975·Granted Aug 9, 1977·3 cites·6 claims
- 2049US4020037AProcess for the spin-dyeing of polymers or copolymers of acrylonitrileHOECHST AG·Filed 1974·Granted Apr 26, 1977·5 cites·2 claims
- 2148US5167668AProcess for level exhaust of cellulose fibers with reactive dyes: addition of fixing alkali according to a parabolic time functionHOECHST AG·Filed 1990·Granted Dec 1, 1992·10 cites·6 claims
- 2241US4765797AStorable formulations of cationic dyes with oxidizing agent as stabilizerHOECHST AG·Filed 1987·Granted Aug 23, 1988·3 cites·11 claims
- 2338US4772292AMixture of yellow disperse dyestuffs containing pyridone disazo dyeCASSELLA FARBWERKE MAINKUR AG·Filed 1987·Granted Sep 20, 1988·7 cites·20 claims
- 2438US4582509AMixtures of monoazo dyestuffsCASSELLA FARBWERKE MAINKUR AG·Filed 1985·Granted Apr 15, 1986·7 cites·15 claims
- 2534US4985043AMixtures of monoazo dyes containing halogen and cyano substituentsCASSELLA FARBWERKE MAINKUR AG·Filed 1989·Granted Jan 15, 1991·5 cites·7 claims
- 2633US4620853ADyestuff mixtures, process for their preparation and process for dyeing and printing hydrophobic fiber materialsCASSELLA FARBWERKE MAINKUR AG·Filed 1985·Granted Nov 4, 1986·3 cites·8 claims
- 2732US5234465APad-dyeing of cellulose fibers with sulfur black dyes: mixture of dithionite and glucose reducing sugar as reducing agent in aqueous alkaline dye bathHOECHST AG·Filed 1992·Granted Aug 10, 1993·4 cites·15 claims
- 2832US3966405AN-Alkyl nitro phenyl diethylene triamine dyeing of acid modified synthetic fibersHOECHST AG·Filed 1975·Granted Jun 29, 1976·2 cites·8 claims
- 2931US4908042AProcess for coloring cellulose on polyester with water-insoluble red mono-azo dyesBUEHLER ULRICH·Filed 1988·Granted Mar 13, 1990·2 cites·1 claims
- 3029US4769449ARed mono-azo water-soluble dye containing cyano, amide and amino substituentsCASSELLA FARBWERKE MAINKUR AG·Filed 1987·Granted Sep 6, 1988·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →