Inventor

Joachim Ribka

Inventor

Offenbach, DE

Overview

1976–1985

Patent span

Chemistry

Primary field (CPC C)

Patents· 64 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C09Bprimary

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments34%

D06PDyeing or printing textiles18%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%

C07DHeterocyclic compounds5%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds3%

C07CAcyclic or carbocyclic compounds3%

C10LFuels not otherwise provided for2%

D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials2%

PatentTitleYear

4,505,856'Azo dyestuff dischargeable to white'1985 4,485,042'Dyestuff containing at least three azo bridges'1984 4,476,052'Azo pigment having improved hiding power and a process for its preparation'1984 4,430,090'Process for coloring organic solvents, mineral oil products, waxes, plastics and surface coatings with cyano-nitro-amino-azo dyes'1984 4,406,661'Process for dyeing and printing synthetic, hydrophobic fibre material with dischargeable azo disperse dye'1983 4,398,913'Process for producing discharge reserve prints on textile materials'1983 4,348,204'Aqueous dyestuff formulation, a process for its preparation and its use for dyeing and printing'1982 4,323,363'Dyeing of mixed fibers'1982 4,314,052'Polyester 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 dyeing'1982 4,313,872'Azo coupling in two-phase water-alcohol mixtures'1982 4,302,582'Process for the preparation of a condensation product from phenothiazine and p-nitrosophenol'1981 4,265,629'Process for the production of resist effects on polyester/cellulose mixed fiber textiles'1981 4,254,026'Water-soluble monoazo dyestuffs'1981 4,252,532'Process for dyeing evenly synthetic fibrous materials'1981 4,252,530'Process for dyeing and printing synthetic hydrophobic fiber material'1981 4,237,243'Use of cross-linked polymers to increase the viscosity in cosmetic, pharmaceutical and technical compositions'1980 4,237,249'Process for the preparation of crosslinked copolymers, the process products obtained, and their use in textile printing'1980 4,225,492'Water-soluble disazo dyestuffs, prepared from unsymmetrical heterocyclic diamines'1980 4,218,219'Condensation 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 therewith'1980 4,204,056'Process and intermediates for preparing fiber-reactive phthalocyanine dyes'1980 4,198,204'Short liquor dyeing process for piece goods, made from cellulose fibers, in rope form'1980 4,195,020'Dichloro-phenyl-azo-acetoacetylamino-benzimidazolone pigments'1980 4,192,947'Process for the production of aminophenylaminobenzimidazoles'1980 4,191,686'Process for preparing fiber-reactive phthalocyanine azo dyes'1980 4,168,145'Branched low molecular weight polyesters levelling agents for dyestuff'1979 4,167,395'Water-soluble branched polyesters'1979 4,158,670'Process for the manufacture of aromatic sulphonic acid esters of aromatic amino-hydroxy compounds'1979 4,153,561'Conditioning agent'1979 4,150,019'Water-insoluble yellow terephthalate-azo-acetoacetylamido-benzimidazolone dyestuffs'1979 4,149,979'Conditioning and water-repellent agents for cellulose-containing textiles and leather'1979 4,144,231'Soluble trisazo dyestuffs containing a 2-phenyl-benzimidazolyl, -benzoxazolyl or -benzthiazolyl middle component'1979 4,144,230'Soluble trisazo dyestuffs containing a 2-phenyl-benzimidazolyl, -benzoxazolyl or -benzthiazolyl middle component'1979 4,143,033'Water-soluble disazo dyestuffs containing a 2-phenyl-benzimidazolyl,-benzoxazolyl or-benzthiazolyl middle component'1979 4,137,228'Water-soluble, copper containing trisazo compounds having a 2-(4\'phenylene)-benzimidazoyl-(5 or 6),-benzoxazolyl-(5), or -benzthiazolyl-(5) component'1979 4,124,582'Process for the purification of azo pigments by stirring an aqueous, alkaline suspension of crude pigment'1978 4,116,918'Melamine resin and dye mixtures'1978 4,101,274'Process for the level dyeing of synthetic fiber materials'1978 4,082,501'Mixtures of oil-soluble phenyl- and naphthyl-azo-phenyl dyestuffs'1978 4,079,040'Sulfo-containing phenol-formaldehyde condensates'1978 4,069,012'Dyeing of polyester fabric with disazo dye'1978 4,058,518'Water-insoluble monoazo 3-cyano-4-methyl-6-hydroxy-2-pyridine dyestuffs'1977 4,052,444'N-(aminobenzoyl)-aminoarylsulfonic acids'1977 4,048,152'Modified form of disazo pigment CI 20040'1977 4,043,984'Aminoplasts elasticized with benzoic acid esters'1977 4,035,143'Water-insoluble azo dyestuffs'1977 4,033,945'Water-soluble trisazo 8-amino-naphthol-1 dyes'1977 4,024,124'Monoazo acetoacetylaminobenzimidazolone pigments containing carboxy group'1977 4,024,125'Dis-azo pigments deriving from bis-diazotized diamino-2-phenyl-benzazolones'1977 4,006,129'2-Nitro-4-aliphaticoxy-phenyl-azo-2,6-dihydroxy-3-cyano-4-methylpyridine compounds'1977 4,002,425'Water-insoluble monoazo dyestuffs'1977 3,999,942'N-Acyloyl-N-alkyl-alkylenediamines as dye levelers'1976 3,997,523'Monoazo pigments'1976 3,993,437'Process for the dyeing of polyamide fibers with sulphur dyestuffs'1976 3,993,441'4-Nitro,2-alkylbenzene azo-3-cyano-4-methyl-6-hydroxy-2-pyridone dyeing of synthetic hydrophobic fibers'1976 3,985,725'Quinolino-azo-aceto-acetylaminobenzimidazolone pigments fast to heat'1976 3,984,199'Water-insoluble monoazo dyestuffs'1976 3,980,635'Novel form of the disazo pigment from bisdiazotized 3,3\'-dichlorobenzidine and 1-(p-tolyl)-3-methylpyrazol-5-one'1976 3,974,136'Modified form of a disazo pigment'1976 3,966,689'Polymers based on N-formyl-N\'-acryloyl-methylenediamines'1976 3,960,480'Bisazo dyestuffs of the 2,6-diaminopyridine series'1976 3,959,250'Bisazo dyestuffs of the 2,6-diaminopyridine'1976 3,957,756'Preparation of substituted ureas'1976 3,956,332'Fast, brown sulfur dyestuffs and process for the preparation thereof'1976 3,954,396'Dyeing synthetic materials with a dodecyl benzoicacid ester-azo-(3-cyano-4-methyl-6-hydroxy-2-pyridone)'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1985Patents assigned to CASSELLA FARBWERKE MAINKUR AG (41)· patent assignee history

1976–1984Patents assigned to HOECHST AG (18)· patent assignee history

1976–1985Based in Offenbach, DE· patent location history

1979–1984Based in Burgel, DE· patent location history

1980–1981Patents assigned to CASSELLA AG (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CASSELLA FARBWERKE MAINKUR AG	41	1976–1985
HOECHST AG	18	1976–1984
CASSELLA AG	5	1980–1981

Locations

Location	Patents	Span
Offenbach, DE	60	1976–1985
Burgel, DE	4	1979–1984