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Winfried Mennicke
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Leverkusen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Disazo dyes
Patent number
6,194,554
Issue date
Feb 27, 2001
Bayer Aktiengesellschaft
Winfried Mennicke
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Disazo dyestuffs for dyeing cellulosic materials
Patent number
6,084,078
Issue date
Jul 4, 2000
Bayer Aktiengesellschaft
Winfried Mennicke
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for dyeing cellulosic materials with disazo dyestuffs
Patent number
5,883,234
Issue date
Mar 16, 1999
Bayer Aktiengesellschaft
Winfried Mennicke
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Polymeric dyestuffs and their use in inks for ink jet printing proc...
Patent number
5,534,052
Issue date
Jul 9, 1996
Bayer Aktiengesellschaft
Winfried Mennicke
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Dyestuffs and their use in inks for ink-jet printing processes
Patent number
5,503,666
Issue date
Apr 2, 1996
Bayer Aktiengesellschaft
Winfried Mennicke
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
1:2 chromium complex dyestuffs
Patent number
5,484,900
Issue date
Jan 16, 1996
Bayer Aktiengesellschaft
Winfried Mennicke
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Liquid dyestuff preparations
Patent number
5,391,207
Issue date
Feb 21, 1995
Bayer Aktiengesellschaft
Rainer Gerlach
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Unsymmetrical 1:2 chromium complex dyestuffs
Patent number
5,250,671
Issue date
Oct 5, 1993
Bayer Aktiengesellschaft
Winfried Mennicke
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Process for the dyeing of leather with anionic dyes and polyaminoam...
Patent number
5,074,884
Issue date
Dec 24, 1991
Bayer Aktiengesellschaft
Winfried Mennicke
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Asymmetrical 1:2 chromium complexes derived from azo and azomethine...
Patent number
4,497,734
Issue date
Feb 5, 1985
Bayer Aktiengesellschaft
Winfried Mennicke
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Metal complex dyestuffs, processes for their preparation and their...
Patent number
4,424,152
Issue date
Jan 3, 1984
Bayer Aktiengesellschaft
Winfried Mennicke
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Azo dyestuffs
Patent number
4,339,380
Issue date
Jul 13, 1982
Bayer Aktiengesellschaft
Herbert Hugl
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Chromium mixed complex dyestuffs of phenyl-azo-pyrazole components
Patent number
4,234,479
Issue date
Nov 18, 1980
Bayer Aktiengesellschaft
Winfried Mennicke
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Information
Patent Application
Use of liquid dyestuff preparations for dyeing wood
Publication number
20020038482
Publication date
Apr 4, 2002
Winfried Mennicke
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...