Inventor
Fritz Meininger
Inventor
Frankfurt am Main, DE
Overview
Patents· 39 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. pigments72%
D06PDyeing or printing textiles11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
C07DHeterocyclic compounds4%
C07CAcyclic or carbocyclic compounds2%
PatentTitleYear
5,015,732'Water 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 dyestuffs'19914,939,243'Water-soluble copper complex disazo compounds containg a chloro triazinylamino group and a group of the vinylsulfone series as fiber-reactive groups and their dyestuffs'19904,906,738'Water-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 dyestuffs'19904,769,446'Fiber-reactive red azo dyestuff'19884,760,134'Process 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 3-6'19884,730,038'Water-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 dyestuffs'19884,725,675'Water-soluble phenyl-azo-naphthyl compounds, suitable as dyestuffs, containing a chloro-triazinylamino group and a fiber-reactive group of the vinylsulfone type'19884,707,545'Process for the preparation of lithium salts of anionic dyes by reacting the calcium salts with lithium sulfate or lithium hydrogen sulfate'19874,693,726'Process for dyeing or printing cellulose fibers or cellulose blend fibers with pyridinium-triazine reactive dye, axable without alkali'19874,649,193'Water-soluble dyestuffs containing fibre-reactive groups of the vinylsulfone series and the fluoro-s-triazinyl-amino series'19874,622,390'Water-soluble disazo compounds containing an amino naphthol-disulfonic acid moiety as a coupling component and fibre-reactive groups'19864,515,598'Process for dyeing and printing fiber materials containing hydroxy and/or carbonamide groups with reactive dye containing both vinyl sulphonyl and fluoro-triazinyl groups'19854,492,654'Water-soluble azo compounds, a process for their preparation and their use as dyes'19854,485,041'Water-soluble metal free or copper triazino-bis-[hydroxy-naphthylamino]-disazo dyestuffs containing fiber reactive groups, and a process for dyeing or printing cellulose fibers'19844,442,288'Anthraquinone compounds'19844,430,259'Water-soluble disazo compounds suitable as fiber-reactive dyestuffs'19844,378,312'Water-soluble azo dyestuffs'19834,372,892'Process for the preparation of 1-aminobenzene-5-.beta.-sulfatoethylsulfone-2,4-disulfonic acid, the 5-vinylsulfone compound and the alkali salts thereof'19834,334,076'Process 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 kneader'19824,323,497'Water-soluble disazo dyestuffs'19824,242,258'Water-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 dyestuffs'19804,229,171'Process for the preparation of fiber-reactive dyestuffs'19804,224,024'Process 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 group'19804,185,012'Water-soluble, fibre-reactive copper complex disazo dyestuffs'19804,139,527'Fiber reactive monoazo dyestuffs containing a --SO.sub.2 --CH.sub.2 --CH.sub.2 --O--PO.sub.3 H.sub.2 group'19794,134,887'Phenyl-azo-phenyl dyestuffs'19794,088,441'Dyestuff composition for the dyeing or printing of cellulose fiber materials'19784,074,967'Dyestuff preparations for dyeing and printing natural and synthetic polyamide fibre materials'19784,066,638'Water-soluble fiber reactive phenyl-azo-naphthyl dyestuffs containing two sulfo groups in the phenyl moiety'19784,046,754'Water-soluble naphyhyl-azo-pyrazolone fiber reactive dyestuffs'19774,045,428'Water-soluble reactive naphthylazonaphthyl dyestuffs'19774,036,825'Monoazo reactive dyestuffs'19774,033,980'Phthalocyanine dyestuffs and process for preparing them'19774,029,644'Water-soluble, fiber-reactive monoazo dyestuffs'19774,014,865'Golden-yellow fiber-reactive water-soluble monoazo dyestuffs'19774,000,966'Dyeing cellulose with aminonaphthyl azobenzene vinyl type reactive dyes'19773,966,704'Naphthylazo naphthyl copper complex dyestuffs'19763,939,141'Water-soluble copper complex phenyl azo naphthalene reactive dyestuffs'19763,939,140'Process for the preparation of a dyestuff consisting substantially of only unsymmetrical 1:2-chromium complex azo dyestuffs'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1991Patents assigned to HOECHST AG (37)· patent assignee history
1976–1991Based in Frankfurt am Main, DE· patent location history
1988Patents assigned to HOECHST CELANESE CORP (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOECHST AG | 37 | 1976–1991 |
| HOECHST CELANESE CORP | 2 | 1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Frankfurt am Main, DE | 39 | 1976–1991 |