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Hermann Henk
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Koln, DE
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Patents Grants
last 30 patents
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Patent Grant
Water-soluble fiber-reactive colorants, method for the production t...
Patent number
6,852,135
Issue date
Feb 8, 2005
DyStar Textilfarben GmbH & Co. Deutschland KG
Joachim Steckelberg
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Water-soluble fiber-reactive dyes, processes for their preparation,...
Patent number
6,060,591
Issue date
May 9, 2000
Dy Star Textilfarben GmbH & Co. Deutschland KG
Wilfried Hansmann
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Water-soluble fiber-reactive dyes, preparation thereof and use thereof
Patent number
6,046,311
Issue date
Apr 4, 2000
Dystar Textilfarben GmbH & Co. Deutschland KG
Wilfried Hansmann
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Reactive dyestuffs based on a substituted barbituric acid
Patent number
5,502,174
Issue date
Mar 26, 1996
Bayer Aktiengesellschaft
Stefan Ehrenberg
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Naphthylazonaphthol dyes which contain a 5-chloro-6-fluoropyrimidin...
Patent number
5,498,700
Issue date
Mar 12, 1996
Bayer Aktiengesellschaft
Hermann Henk
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Bifunctional reactive dyestuff mixture
Patent number
5,460,631
Issue date
Oct 24, 1995
Bayer Aktiengesellschaft
Manfred Hoppe
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Process for preparing [5-amino-2-(2-hydroxyethylamino)-phenyl](2-hy...
Patent number
5,414,131
Issue date
May 9, 1995
Bayer Aktiengesellschaft
Karl-Josef Herd
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Monoazo 2-hydroxy-pyridone-containing reactive dyestuffs
Patent number
5,391,716
Issue date
Feb 21, 1995
Bayer Aktiengesellschaft
Konrad Bootz
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Reactive dyestuff containing triazinyl and halopyrimidine moieties
Patent number
5,340,928
Issue date
Aug 23, 1994
Bayer Aktiengesellschaft
Manfred Hoppe
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Azo dyestuffs and intermediate products for their preparation
Patent number
5,278,293
Issue date
Jan 11, 1994
Bayer Aktiengesellschaft
Karl-Josef Herd
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Polyfunctional fibre-reactive dyestuffs
Patent number
5,274,083
Issue date
Dec 28, 1993
Bayer Aktiengesellschaft
Karl-Josef Herd
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Reactive dyestuffs
Patent number
5,270,454
Issue date
Dec 14, 1993
Bayer Aktiengesellschaft
Manfred Hoppe
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Copper complexes of 4-fluoro-5-chloropyrimidin-6-yl containing ract...
Patent number
5,256,773
Issue date
Oct 26, 1993
Bayer Aktiengesellschaft
Klaus Kunde
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Reactive monoazo dyestuffs which contain alkylbenzene and chloroflu...
Patent number
5,241,056
Issue date
Aug 31, 1993
Bayer Aktiengesellschaft
Manfred Hoppe
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Formazan dyestuffs
Patent number
5,220,057
Issue date
Jun 15, 1993
Bayer Aktiengesellschaft
Thomas Eizenhofer
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Reactive dyestuff preparations containing pyridine derivatives
Patent number
5,176,718
Issue date
Jan 5, 1993
Bayer Aktiengesellschaft
Martin Michna
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Polyazo reactive dyestuffs containing the 4-Fluoro-5-Chloropyrimidi...
Patent number
5,166,325
Issue date
Nov 24, 1992
Bayer Aktiengesellschaft
Karl-Josef Herd
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Azo reactive dyestuffs containing a fluorotriazinyl group
Patent number
5,132,410
Issue date
Jul 21, 1992
Bayer Aktiengesellschaft
Karl-Josef Herd
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
6-substituted sulphonyl-8-sulpho-2-naphthyl monoazo reactive dyestuffs
Patent number
5,095,102
Issue date
Mar 10, 1992
Bayer Aktiengesellschaft
Karl-Josef Herd
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Fiber reactive azo dyestuffs
Patent number
5,093,481
Issue date
Mar 3, 1992
Bayer Aktiengesellschaft
Hermann Henk
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Process for the preparation of substituted 2,4-diamino-6-fluoro-S-t...
Patent number
5,091,515
Issue date
Feb 25, 1992
Bayer Aktiengesellschaft
Karl J. Herd
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 4,5,6-trichloropyrimidine
Patent number
5,051,507
Issue date
Sep 24, 1991
Bayer Aktiengesellschaft
Karl-Heinz Schundehutte
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Triphendioxazine and triphendithiazine direct dyestuffs
Patent number
4,990,615
Issue date
Feb 5, 1991
Bayer Aktiengesellschaft
Hermann Henk
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Fiber reactive azo dyes containing a morpholinyl-, piperazinyl- or...
Patent number
4,988,803
Issue date
Jan 29, 1991
Bayer Aktiengesellschaft
Frank M. Stohr
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Colorants obtained by reacting a NH.sub.2 -containing dyestuff with...
Patent number
4,978,747
Issue date
Dec 18, 1990
Bayer Aktiengesellschaft
Karl-Arnold Weber
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Heavy metal-containing monoazo dyes
Patent number
4,777,247
Issue date
Oct 11, 1988
Bayer Aktiengesellschaft
Hermann Henk
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Metal complex dyestuffs useful as solvent, direct, pigment or fiber...
Patent number
4,772,687
Issue date
Sep 20, 1988
Bayer Aktiengesellschaft
Hermann Henk
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Sulfo-group-containing trisazo dyestuffs
Patent number
4,670,548
Issue date
Jun 2, 1987
Bayer Aktiengesellschaft
Jochen Westphal
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Fibre-reactive fluorothriazine-group-containing azo dyestuffs
Patent number
4,563,518
Issue date
Jan 7, 1986
Bayer Aktiengesellschaft
Hermann Henk
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Triazole-group-containing disazo reactive dyestuff
Patent number
4,556,707
Issue date
Dec 3, 1985
Bayer Aktiengesellschaft
Hermann Henk
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Information
Patent Application
Water-soluble fiber-reactive colorants, method for the production t...
Publication number
20030191294
Publication date
Oct 9, 2003
Joachim Steckelberg
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...