Inventor · disambiguated record
Fritz Meininger
Also filed as: MEININGER FRITZ
39 granted patents·472 citations·filing 1972–1988
98Inventor score
Top patents by PatentIndex Score
39 records- 0195US4036825AMonoazo reactive dyestuffsHOECHST AG·Filed 1976·Granted Jul 19, 1977·27 cites·8 claims
- 0294US4649193AWater-soluble dyestuffs containing fibre-reactive groups of the vinylsulfone series and the fluoro-s-triazinyl-amino seriesHOECHST AG·Filed 1983·Granted Mar 10, 1987·46 cites·4 claims
- 0394US4485041AWater-soluble metal free or copper triazino-bis-[hydroxy-naphthylamino]-disazo dyestuffs containing fiber reactive groups, and a process for dyeing or printing cellulose fibersHOECHST AG·Filed 1981·Granted Nov 27, 1984·33 cites·13 claims
- 0494US4066638AWater-soluble fiber reactive phenyl-azo-naphthyl dyestuffs containing two sulfo groups in the phenyl moietyHOECHST AG·Filed 1974·Granted Jan 3, 1978·24 cites·6 claims
- 0593US4134887APhenyl-azo-phenyl dyestuffsHOECHST AG·Filed 1977·Granted Jan 16, 1979·24 cites·2 claims
- 0691US4323497AWater-soluble disazo dyestuffsHOECHST AG·Filed 1978·Granted Apr 6, 1982·22 cites·16 claims
- 0789US4622390AWater-soluble disazo compounds containing an amino naphthol-disulfonic acid moiety as a coupling component and fibre-reactive groupsHOECHST AG·Filed 1985·Granted Nov 11, 1986·30 cites·13 claims
- 0886US4242258AWater-soluble dyestuffs, processes for their manufacture, their use as fiber-reactive dyestuffs for dyeing and printing fiber materials and the fiber materials dyed with these dyestuffsHOECHST AG·Filed 1979·Granted Dec 30, 1980·14 cites·2 claims
- 0985US4725675AWater-soluble phenyl-azo-naphthyl compounds, suitable as dyestuffs, containing a chloro-triazinylamino group and a fiber-reactive group of the vinylsulfone typeHOECHST AG·Filed 1983·Granted Feb 16, 1988·16 cites·5 claims
- 1085US4492654AWater-soluble azo compounds, a process for their preparation and their use as dyesHOECHST AG·Filed 1983·Granted Jan 8, 1985·18 cites·10 claims
- 1181US4074967ADyestuff preparations for dyeing and printing natural and synthetic polyamide fibre materialsHOECHST AG·Filed 1974·Granted Feb 21, 1978·20 cites·1 claims
- 1281US4033980APhthalocyanine dyestuffs and process for preparing themHOECHST AG·Filed 1972·Granted Jul 5, 1977·10 cites·3 claims
- 1380US4430259AWater-soluble disazo compounds suitable as fiber-reactive dyestuffsHOECHST AG·Filed 1981·Granted Feb 7, 1984·13 cites·6 claims
- 1480US4378312AWater-soluble azo dyestuffsHOECHST AG·Filed 1980·Granted Mar 29, 1983·14 cites·16 claims
- 1580US4088441ADyestuff composition for the dyeing or printing of cellulose fiber materialsHOECHST AG·Filed 1976·Granted May 9, 1978·11 cites·6 claims
- 1680US4046754AWater-soluble naphyhyl-azo-pyrazolone fiber reactive dyestuffsHOECHST AG·Filed 1975·Granted Sep 6, 1977·10 cites·7 claims
- 1778US4730038AWater-soluble disazo compounds of 1-amino-8-naphthal-3,6- or 4,6-disulfonic acid as bivalent coupling component, containing fiber-reactive groups suitable as dyestuffsHOECHST AG·Filed 1985·Granted Mar 8, 1988·14 cites·9 claims
- 1877US4515598AProcess for dyeing and printing fiber materials containing hydroxy and/or carbonamide groups with reactive dye containing both vinyl sulphonyl and fluoro-triazinyl groupsHOECHST AG·Filed 1983·Granted May 7, 1985·21 cites·3 claims
- 1976US3939140AProcess for the preparation of a dyestuff consisting substantially of only unsymmetrical 1:2-chromium complex azo dyestuffsHOECHST AG·Filed 1974·Granted Feb 17, 1976·9 cites·15 claims
- 2071US4939243AWater-soluble copper complex disazo compounds containg a chloro triazinylamino group and a group of the vinylsulfone series as fiber-reactive groups and their dyestuffsHOECHST AG·Filed 1985·Granted Jul 3, 1990·10 cites·11 claims
- 2170US4769446AFiber-reactive red azo dyestuffHOECHST CELANESE CORP·Filed 1983·Granted Sep 6, 1988·8 cites·8 claims
- 2270US4139527AFiber reactive monoazo dyestuffs containing a --SO2 --CH2 --CH2 --O--PO3 H2 groupHOECHST AG·Filed 1973·Granted Feb 13, 1979·6 cites·9 claims
- 2369US4334076AProcess for the preparation of sulfuric acid semiester ethylsulfonyl compounds of aminophenols, aminobenzanilides or phenylpyrazolones by esterification with sulfuric acid and/or sulfur trioxide in a kneaderHOECHST AG·Filed 1977·Granted Jun 8, 1982·7 cites·13 claims
- 2468US4707545AProcess for the preparation of lithium salts of anionic dyes by reacting the calcium salts with lithium sulfate or lithium hydrogen sulfateHOECHST AG·Filed 1985·Granted Nov 17, 1987·8 cites·18 claims
- 2568US4693726AProcess 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
- 2660US4045428AWater-soluble reactive naphthylazonaphthyl dyestuffsHOECHST AG·Filed 1975·Granted Aug 30, 1977·5 cites·4 claims
- 2759US4442288AAnthraquinone compoundsHOECHST AG·Filed 1982·Granted Apr 10, 1984·7 cites·2 claims
- 2857US4000966ADyeing cellulose with aminonaphthyl azobenzene vinyl type reactive dyesHOECHST AG·Filed 1973·Granted Jan 4, 1977·4 cites·17 claims
- 2956US4760134AProcess for the preparation of the copper complex disazo compounds from disazo compounds containing an O'-alkoxyaniline group by coppering dimethylation at a pH at about 3-6HOECHST CELANESE CORP·Filed 1985·Granted Jul 26, 1988·5 cites·5 claims
- 3053US3939141AWater-soluble copper complex phenyl azo naphthalene reactive dyestuffsHOECHST AG·Filed 1974·Granted Feb 17, 1976·3 cites·4 claims
- 3151US4372892AProcess for the preparation of 1-aminobenzene-5-β-sulfatoethylsulfone-2,4-disulfonic acid, the 5-vinylsulfone compound and the alkali salts thereofHOECHST AG·Filed 1981·Granted Feb 8, 1983·4 cites·2 claims
- 3247US4014865AGolden-yellow fiber-reactive water-soluble monoazo dyestuffsHOECHST AG·Filed 1975·Granted Mar 29, 1977·2 cites·2 claims
- 3345US4185012AWater-soluble, fibre-reactive copper complex disazo dyestuffsHOECHST AG·Filed 1976·Granted Jan 22, 1980·2 cites·6 claims
- 3445US4029644AWater-soluble, fiber-reactive monoazo dyestuffsHOECHST AG·Filed 1975·Granted Jun 14, 1977·2 cites·6 claims
- 3544US4906738AWater-soluble phenyl- or naphthyl-azo-carboxypyrazolone compounds, containing a fiber-reactive group with a chloratriazinyl moiety and a group of the vinylsulfone series in the pyrazolone coupling component, suitable as dyestuffsHOECHST AG·Filed 1985·Granted Mar 6, 1990·3 cites·23 claims
- 3644US4229171AProcess for the preparation of fiber-reactive dyestuffsHOECHST AG·Filed 1978·Granted Oct 21, 1980·2 cites·6 claims
- 3742US5015732AWater soluble copper-complex phenylazonaphthyl and naphthylazonaphthyl compounds containing as fibre-reactive groups a chloro-triazinyl group and a group of the vinylsulfone series, suitable as dyestuffsHOECHST AG·Filed 1988·Granted May 14, 1991·2 cites·8 claims
- 3837US3966704ANaphthylazo naphthyl copper complex dyestuffsHOECHST AG·Filed 1973·Granted Jun 29, 1976·1 cites·1 claims
- 3923US4224024AProcess for the reactive dyeing and printing of fibrous materials containing hydroxy groups with a water-soluble organic dyestuff containing at least one phosphonic acid-monofluoride group and at least one ionic water-solubilizing groupHOECHST AG·Filed 1975·Granted Sep 23, 1980·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →