Inventor

Heinz Eilingsfeld

Inventor

Frankenthal, DE

Overview

40→

Patents

1976–1993

Patent span

Chemistry

Primary field (CPC C)

Patents· 40 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. pigments31%

C07CAcyclic or carbocyclic compounds29%

C07DHeterocyclic compounds19%

G03GElectrography8%

D06PDyeing or printing textiles4%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations2%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry2%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds2%

C09KMaterials for miscellaneous applications, not provided for elsewhere2%

Y02PClimate change mitigation technologies in the production or processing of goods2%

PatentTitleYear

5,206,375'Thiophene derivatives'1993 5,145,952'Thiopheneazo dyes with a coupling component based on M-phenylenediamine'1992 5,082,973'Process for the preparation of bis(4-chlorophenyl) sulfone'1992 5,072,034'Preparation of 4-alkoxy-2-hydroxybenzophenone-5-sulfonic acids'1991 5,006,659'Preparation of 7-chloroquinoline-8-carboxylic acids'1991 4,983,773'Preparation of bis-(4-chlorophenyl) sulfone'1991 4,897,469'Aniline series azo reactive dyes ortho- or para-substituted by vinyl sulfonyl reactive groups'1990 4,873,372'Isolation of 4,4\'-dichlorodiphenyl sulfone'1989 4,843,153'Azo dyes containing thienothiophene radicals as radicals of the diazo component'1989 4,785,116'Aminoisothiazole compounds'1988 4,677,199'Reactive dyes containing substituted 4-fluoropyridaz-6-one radicals'1987 4,533,612'Electrophotographic recording materials containing special charge carrier-transporting compounds'1985 4,490,541'5(3)-Aminopyrazolo-3,4(4,5)-dicarboximide azo dyestuff intermediates'1984 4,483,795'Substituted phenyl disazo dyes containing a 2-amino-substituted thiazole radical'1984 4,481,272'Layered electrophotographic recording medium comprising heterocyclic nitrogen containing organic dye compounds'1984 4,466,899'Dyes for use in liquid crystal mixtures'1984 4,465,857'Phenylhydrazones'1984 4,456,672'Electrophotographic recording materials containing triazole charge carrier-transporting compounds'1984 4,407,810'Thiazol-2-yl-oxamic acid derivatives, and therapeutic agents containing these compounds'1983 4,372,885'Bisazo dyes containing a 2-amino-substituted thiazole radical'1983 4,340,537'Monoazo dyes of the thiazole series having a heterocyclic substituent in the 4-position'1982 4,327,019'Acid azo dyes from a 3-amino-benzisothiazole-[2,1]-5-sulfonic acid diazo component'1982 4,278,606'Preparation of 1-amino-2-phenoxy-4-hydroxyanthraquinone'1981 4,250,090'2-Amino-5-arylazoarylazothiazole compounds'1981 4,239,894'Thiazole derivatives'1980 4,207,233'Azo dyes containing a thiazole component'1980 4,198,205'Triazinyl-anthraquinone dye formulations for cellulose or cellulosic fibrous material'1980 4,153,607'Process for the production of 4,5-disubstituted thiazoles'1979 4,117,019'Manufacture of o-benzyltoluenes'1978 4,053,488'Separation of 1,5-dinitroanthraquinone and 1,8-dinitroanthraquinone'1977 4,045,456'Manufacture of anthraquinones'1977 4,042,604'Isolation of dinitroanthraquinone having a high content of .alpha.,.alpha.- d'1977 4,015,062'Dioxazolone group-containing polymers'1977 4,002,653'Manufacture of anthraquinone'1977 4,001,335'Production of 3-monochloro-2,4,5-trialkylbenzophenones and 3,6-dichloro-2,4,5-trialkylbenzophenones'1977 3,998,894'Manufacture of 1-methyl-3-(monohalogeno)-phenylindans and dihalogeno-1-methyl-3-phenylindans'1976 3,978,096'Production of 1-chloroanthraquinone'1976 3,978,144'Manufacture of o-benzyltoluenes'1976 3,956,326'3-Amino-isothiazolo[3,4-d]pyrimidines'1976 3,933,917'Production of dimethylbenzophenone'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1993Patents assigned to BASF AG (40)· patent assignee history

1976–1993Based in Frankenthal, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BASF AG	40	1976–1993

Locations

Location	Patents	Span
Frankenthal, DE	40	1976–1993