Inventor · disambiguated record
Joachim Ribka
Also filed as: GOTSMANN ULRICH · RIBKA JOACHIM · UNGERMANN ERWIN
64 granted patents·561 citations·filing 1972–1983
99Inventor score
Top patents by PatentIndex Score
64 records- 0195US4313872AAzo coupling in two-phase water-alcohol mixturesCASSELLA FARBWERKE MAINKUR AG·Filed 1978·Granted Feb 2, 1982·26 cites·12 claims
- 0294US3959250ABisazo dyestuffs of the 2,6-diaminopyridineCASSELLA FARBWERKE MAINKUR AG·Filed 1974·Granted May 25, 1976·33 cites·13 claims
- 0391US4237243AUse of cross-linked polymers to increase the viscosity in cosmetic, pharmaceutical and technical compositionsHOECHST AG·Filed 1979·Granted Dec 2, 1980·88 cites·8 claims
- 0491US4167395AWater-soluble branched polyestersCASSELLA FARBWERKE MAINKUR AG·Filed 1977·Granted Sep 11, 1979·49 cites·11 claims
- 0589US4069012ADyeing of polyester fabric with disazo dyeCASSELLA FARBWERKE MAINKUR AG·Filed 1977·Granted Jan 17, 1978·18 cites·13 claims
- 0688US4101274AProcess for the level dyeing of synthetic fiber materialsHOECHST AG·Filed 1976·Granted Jul 18, 1978·19 cites·17 claims
- 0783US4252530AProcess for dyeing and printing synthetic hydrophobic fiber materialCASSELLA FARBWERKE MAINKUR AG·Filed 1979·Granted Feb 24, 1981·12 cites·8 claims
- 0883US4024125ADis-azo pigments deriving from bis-diazotized diamino-2-phenyl-benzazolonesHOECHST AG·Filed 1975·Granted May 17, 1977·13 cites·6 claims
- 0981US4265629AProcess for the production of resist effects on polyester/cellulose mixed fiber textilesCASSELLA AG·Filed 1979·Granted May 5, 1981·14 cites·6 claims
- 1081US3960480ABisazo dyestuffs of the 2,6-diaminopyridine seriesCASSELLA FARBWERKE MAINKUR AG·Filed 1974·Granted Jun 1, 1976·11 cites·3 claims
- 1180US4195020ADichloro-phenyl-azo-acetoacetylamino-benzimidazolone pigmentsHOECHST AG·Filed 1979·Granted Mar 25, 1980·9 cites·4 claims
- 1279US4168145ABranched low molecular weight polyesters levelling agents for dyestuffCASSELLA FARBWERKE MAINKUR AG·Filed 1977·Granted Sep 18, 1979·12 cites·14 claims
- 1378US4198204AShort liquor dyeing process for piece goods, made from cellulose fibers, in rope formHOECHST AG·Filed 1977·Granted Apr 15, 1980·11 cites·25 claims
- 1478US4192947AProcess for the production of aminophenylaminobenzimidazolesCASSELLA AG·Filed 1978·Granted Mar 11, 1980·11 cites·9 claims
- 1576US4150019AWater-insoluble yellow terephthalate-azo-acetoacetylamido-benzimidazolone dyestuffsHOECHST AG·Filed 1973·Granted Apr 17, 1979·8 cites·4 claims
- 1676US3974136AModified form of a disazo pigmentHOECHST AG·Filed 1974·Granted Aug 10, 1976·8 cites·1 claims
- 1775US4254026AWater-soluble monoazo dyestuffsCASSELLA FARBWERKE MAINKUR AG·Filed 1979·Granted Mar 3, 1981·7 cites·3 claims
- 1873US4153561AConditioning agentHOECHST AG·Filed 1977·Granted May 8, 1979·17 cites·2 claims
- 1972US4024124AMonoazo acetoacetylaminobenzimidazolone pigments containing carboxy groupHOECHST AG·Filed 1974·Granted May 17, 1977·12 cites·7 claims
- 2071US3985725AQuinolino-azo-aceto-acetylaminobenzimidazolone pigments fast to heatHOECHST AG·Filed 1975·Granted Oct 12, 1976·7 cites·5 claims
- 2170US4144231ASoluble trisazo dyestuffs containing a 2-phenyl-benzimidazolyl, -benzoxazolyl or -benzthiazolyl middle componentCASSELLA FARBWERKE MAINKUR AG·Filed 1977·Granted Mar 13, 1979·6 cites·13 claims
- 2269US4033945AWater-soluble trisazo 8-amino-naphthol-1 dyesCASSELLA FARBWERKE MAINKUR AG·Filed 1975·Granted Jul 5, 1977·7 cites·20 claims
- 2368US4476052AAzo pigment having improved hiding power and a process for its preparationHOECHST AG·Filed 1982·Granted Oct 9, 1984·8 cites·18 claims
- 2467US4124582AProcess for the purification of azo pigments by stirring an aqueous, alkaline suspension of crude pigmentHOECHST AG·Filed 1975·Granted Nov 7, 1978·6 cites·6 claims
- 2564US4314052APolyester which is soluble or dispersible in water, a process for its preparation and its use as a levelling auxiliary, levelling auxiliaries and processes for uniform dyeingCASSELLA FARBWERKE MAINKUR AG·Filed 1980·Granted Feb 2, 1982·11 cites·15 claims
- 2664US3984199AWater-insoluble monoazo dyestuffsCASSELLA FARBWERKE MAINKUR AG·Filed 1973·Granted Oct 5, 1976·9 cites·1 claims
- 2761US4082501AMixtures of oil-soluble phenyl- and naphthyl-azo-phenyl dyestuffsHOECHST AG·Filed 1972·Granted Apr 4, 1978·4 cites·8 claims
- 2858US4116918AMelamine resin and dye mixturesCASSELLA FARBWERKE MAINKUR AG·Filed 1975·Granted Sep 26, 1978·9 cites·6 claims
- 2956US4035143AWater-insoluble azo dyestuffsCASSELLA FARBWERKE MAINKUR AG·Filed 1975·Granted Jul 12, 1977·5 cites·7 claims
- 3053US4252532AProcess for dyeing evenly synthetic fibrous materialsHOECHST AG·Filed 1977·Granted Feb 24, 1981·4 cites·12 claims
- 3152US4237249AProcess for the preparation of crosslinked copolymers, the process products obtained, and their use in textile printingCASSELLA FARBWERKE MAINKUR AG·Filed 1978·Granted Dec 2, 1980·10 cites·8 claims
- 3252US3993441A4-Nitro,2-alkylbenzene azo-3-cyano-4-methyl-6-hydroxy-2-pyridone dyeing of synthetic hydrophobic fibersCASSELLA FARBWERKE MAINKUR AG·Filed 1975·Granted Nov 23, 1976·3 cites·3 claims
- 3352US3980635ANovel form of the disazo pigment from bisdiazotized 3,3'-dichlorobenzidine and 1-(p-tolyl)-3-methylpyrazol-5-oneHOECHST AG·Filed 1975·Granted Sep 14, 1976·3 cites·1 claims
- 3450US4348204AAqueous dyestuff formulation, a process for its preparation and its use for dyeing and printingCASSELLA FARBWERKE MAINKUR AG·Filed 1981·Granted Sep 7, 1982·4 cites·8 claims
- 3549US4430090AProcess for coloring organic solvents, mineral oil products, waxes, plastics and surface coatings with cyano-nitro-amino-azo dyesCASSELLA FARBWERKE MAINKUR AG·Filed 1982·Granted Feb 7, 1984·8 cites·13 claims
- 3649US4043984AAminoplasts elasticized with benzoic acid estersCASSELLA FARBWERKE MAINKUR AG·Filed 1975·Granted Aug 23, 1977·6 cites·7 claims
- 3748US4323363ADyeing of mixed fibersCASSELLA FARBWERKE MAINKUR AG·Filed 1980·Granted Apr 6, 1982·8 cites·10 claims
- 3848US4144230ASoluble trisazo dyestuffs containing a 2-phenyl-benzimidazolyl, -benzoxazolyl or -benzthiazolyl middle componentCASSELLA FARBWERKE MAINKUR AG·Filed 1977·Granted Mar 13, 1979·2 cites·9 claims
- 3947US4406661AProcess for dyeing and printing synthetic, hydrophobic fibre material with dischargeable azo disperse dyeCASSELLA FARBWERKE MAINKUR AG·Filed 1982·Granted Sep 27, 1983·11 cites·5 claims
- 4046US4052444AN-(aminobenzoyl)-aminoarylsulfonic acidsHOECHST AG·Filed 1975·Granted Oct 4, 1977·3 cites·7 claims
- 4146US4002425AWater-insoluble monoazo dyestuffsCASSELLA FARBWERKE MAINKUR AG·Filed 1975·Granted Jan 11, 1977·2 cites·3 claims
- 4245US3954396ADyeing synthetic materials with a dodecyl benzoicacid ester-azo-(3-cyano-4-methyl-6-hydroxy-2-pyridone)CASSELLA FARBWERKE MAINKUR AG·Filed 1974·Granted May 4, 1976·7 cites·2 claims
- 4344US4204056AProcess and intermediates for preparing fiber-reactive phthalocyanine dyesCASSELLA AG·Filed 1978·Granted May 20, 1980·3 cites·1 claims
- 4444US3999942AN-Acyloyl-N-alkyl-alkylenediamines as dye levelersCASSELLA FARBWERKE MAINKUR AG·Filed 1975·Granted Dec 28, 1976·3 cites·5 claims
- 4543US4218219ACondensation product from phenothiazine and p-nitrosophenol, process for the production of the condensation product, process for the production of sulfur dyestuffs using the condensation product and the sulfur dyestuffs prepared therewithCASSELLA AG·Filed 1978·Granted Aug 19, 1980·2 cites·10 claims
- 4643US4048152AModified form of disazo pigment CI 20040HOECHST AG·Filed 1975·Granted Sep 13, 1977·2 cites·1 claims
- 4742US3993437AProcess for the dyeing of polyamide fibers with sulphur dyestuffsCASSELLA FARBWERKE MAINKUR AG·Filed 1974·Granted Nov 23, 1976·4 cites·18 claims
- 4841US4058518AWater-insoluble monoazo 3-cyano-4-methyl-6-hydroxy-2-pyridine dyestuffsCASSELLA FARBWERKE MAINKUR AG·Filed 1976·Granted Nov 15, 1977·1 cites·3 claims
- 4941US4006129A2-Nitro-4-aliphaticoxy-phenyl-azo-2,6-dihydroxy-3-cyano-4-methylpyridine compoundsCASSELLA FARBWERKE MAINKUR AG·Filed 1974·Granted Feb 1, 1977·1 cites·1 claims
- 5040US3957756APreparation of substituted ureasCASSELLA FARBWERKE MAINKUR AG·Filed 1973·Granted May 18, 1976·4 cites·4 claims
Showing the top 50 of 64 patent records by PatentIndex Score.
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