Ribka; Joachim

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ribka; Joachim.The latest application filed is for "azo pigment having improved hiding power and a process for its preparation".

Company Profile

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Ribka; Joachim - Offenbach am Main DE
Ribka; Joachim - Offenbach am Main-Burgel DE
Ribka; Joachim - Offenbach DE
Ribka; Joachim - Offenbach Main

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Azo pigment having improved hiding power and a process for its preparation Grant 4,476,052 - Hunger , et al. October 9, 1	1984-10-09
Dyeing of mixed fibers Grant 4,323,363 - Brachten , et al. April 6, 1	1982-04-06
Use of cross-linked polymers to increase the viscosity in cosmetic, pharmaceutical and technical compositions Grant 4,237,243 - Quack , et al. December 2, 1	1980-12-02
Soluble trisazo dyestuffs containing a 2-phenyl-benzimidazolyl, -benzoxazolyl or -benzthiazolyl middle component Grant 4,144,231 - Bauer , et al. March 13, 1	1979-03-13
Soluble trisazo dyestuffs containing a 2-phenyl-benzimidazolyl, -benzoxazolyl or -benzthiazolyl middle component Grant 4,144,230 - Bauer , et al. March 13, 1	1979-03-13
Mixtures of oil-soluble phenyl- and naphthyl-azo-phenyl dyestuffs Grant 4,082,501 - Mees , et al. April 4, 1	1978-04-04
Aminoplasts elasticized with benzoic acid esters Grant 4,043,984 - Keil , et al. August 23, 1	1977-08-23
Monoazo acetoacetylaminobenzimidazolone pigments containing carboxy group Grant 4,024,124 - Ribka May 17, 1	1977-05-17
Dis-azo pigments deriving from bis-diazotized diamino-2-phenyl-benzazolones Grant 4,024,125 - Kunstmann , et al. May 17, 1	1977-05-17
Modified form of a disazo pigment Grant 3,974,136 - Hunger , et al. August 10, 1	1976-08-10
Bisazo dyestuffs of the 2,6-diaminopyridine Grant 3,959,250 - Heinrich , et al. May 25, 1	1976-05-25
Hydrolyzed copolymer of acrylonitrile and an unsaturated sulfonic acid Grant 3,929,740 - Engelhardt , et al. December 30, 1	1975-12-30
Polyacrylamide particles coated with a powder Grant 3,876,573 - Engelhardt , et al. April 8, 1	1975-04-08
Dyestuff Mixtures Of Water-insoluble Disazo Dyestuffs And Process For Their Preparation Grant 3,617,171 - Ribka November 2, 1	1971-11-02
Water-insoluble Benzimidazolone Containing Monoazo Dyestuffs Grant 3,609,135 - Ribka September 28, 1	1971-09-28

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