Inventor

Karl-Heinz Keil

Inventor

Hanau-Mittelbuchen, DE

Overview

32→

Patents

1976–2000

Patent span

Chemistry

Primary field (CPC C)

Patents· 32 as inventor

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

D06Pprimary

D06PDyeing or printing textiles15%

D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials14%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry7%

C07DHeterocyclic compounds7%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds6%

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

C11DDetergent compositions6%

Y10TTechnical subjects covered by former us classification4%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%

PatentTitleYear

6,028,192'Process for the preparation of diacylimides'2000 5,530,093'Polycondensates containing phosphinic and phosphonic acid groups'1996 5,492,995'Polycondensates containing phosphinic or phosphonic acid groups and siloxane groups'1996 5,389,280'Stable and homogeneous aqueous formulations of surfactants'1995 5,230,711'Dyeing of cellulose with soluble sulphur dyes without reducing agent'1993 5,144,040'Process for the preparation of 1-(acylaminoalkyl)-2-imidazolines substituted in the 2 position'1992 5,100,673'Microencapsulation of biologically active material'1992 5,041,553'Process for the preparation of 2-substituted 1-(acylaminoalkyl)-2-imidazolines'1991 5,006,129'Dyeing textile material with pigment dyes: pre-treatment with quaternary ally ammonium salt polymer'1991 4,988,365'Process for the dyeing and printing of cellulose fibers in the absence of alkali or reducing agents: pre treatment with modified amine'1991 4,977,239'Polybase from amino amido carboxylic acid, polyamine and difunctional alkylating agent'1990 4,810,254'Wet-fastness properties of sulphur dyestuffs dyeings on cellulose treated with poly-di-allyl-ammonium salt'1989 4,806,126'Process for alkali-free dyeing and printing with reactive dyes'1989 4,753,999'Copolymer, process for its preparation, and its use'1988 4,686,243'Copolymer, a process for its preparation and its use as enzyme supports'1987 4,608,277'Encapsulated salts of sparing solubility in water, their preparation and their use'1986 4,588,413'Process for producing dyeings with reactive dyestuffs'1986 4,576,973'Copolymer, process for its preparation and its use as a sorbent'1986 4,552,905'Copolymer, a process for its preparation and its use as a sorbent'1985 4,547,429'Encapsulated salts of acid particles wherein the salt particles are surrounded by a polyurethane/polyurea casing'1985 4,488,974'Softener emulsion, a process for its preparation, and its application'1984 4,399,043'Fabric softener'1983 4,310,355'Internal release agent for thermosetting aminoplast resins'1982 4,300,903'Padding auxiliaries and processes for dyeing cellulose fibers or mixtures of cellulose fibers and synthetic fibers with sulphur dyestuffs, sulphur vat dyestuffs, vat dyestuffs and reactive dyestuffs'1981 4,289,665'Process for the preparation of aqueous emulsions, stable in storage, of N.alkyl-N-alkylol-ureas and their application for the softening of leather'1981 4,271,073'6-Substituted-9-(2-hydroxyethyl)-1,2,3,4-tetrahydro carbazol-1-one'1981 4,198,204'Short liquor dyeing process for piece goods, made from cellulose fibers, in rope form'1980 4,153,561'Conditioning agent'1979 4,149,979'Conditioning and water-repellent agents for cellulose-containing textiles and leather'1979 4,043,984'Aminoplasts elasticized with benzoic acid esters'1977 3,999,942'N-Acyloyl-N-alkyl-alkylenediamines as dye levelers'1976 3,993,437'Process for the dyeing of polyamide fibers with sulphur dyestuffs'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1996Patents assigned to CASSELLA FARBWERKE MAINKUR AG (20)· patent assignee history

1976–1983Based in Offenbach, DE· patent location history

1979–1996Patents assigned to HOECHST AG (10)· patent assignee history

1981Based in Offenbach-Bieber, DE· patent location history

1984–1993Based in Hanau-Mittelbuchen, DE· patent location history

1987–2000Based in Hanau, DE· patent location history

1992Based in Hanaub, DE· patent location history

1993Patents assigned to CASSELLA AG (1)· patent assignee history

2000Patents assigned to CLARIANT GMBH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CASSELLA FARBWERKE MAINKUR AG	20	1976–1996
HOECHST AG	10	1979–1996
CASSELLA AG	1	1993
CLARIANT GMBH	1	2000

Locations

Location	Patents	Span
Hanau-Mittelbuchen, DE	12	1984–1993
Offenbach, DE	10	1976–1983
Hanau, DE	8	1987–2000
Hanaub, DE	1	1992
Offenbach-Bieber, DE	1	1981