Gerhard Wolfrum

Person

Odenthal-Leverkusen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Method for detecting hydrogen peroxide employing triaryl- and trihe...
- Patent number 4,988,616
- Issue date Jan 29, 1991
- Bayer Aktiengesellschaft
- Holger Heidenreich
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Method for detecting esterolytic and proteolytic enzymes
- Patent number 4,814,271
- Issue date Mar 21, 1989
- Miles Inc.
- Herbert Hugl
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Orthotrifluoromethyl containing phenylazonaphthol dyestuffs
- Patent number 4,757,137
- Issue date Jul 12, 1988
- Bayer Aktiengesellschaft
- Gerhard Wolfrum
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
4-alkyl-2-trifluoromethylanilines
- Patent number 4,749,813
- Issue date Jun 7, 1988
- Bayer Aktiengesellschaft
- Albrecht Marhold
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
3-thienylazo dyes with a gamma-acid coupler
- Patent number 4,711,954
- Issue date Dec 8, 1987
- Bayer Aktiengesellschaft
- Holger Heidenreich
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Composition and test device for determining the presence of leukocy...
- Patent number 4,637,979
- Issue date Jan 20, 1987
- Miles Laboratories, Inc.
- A. Christopher Skjold
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Color photographic material with azo dicyanoimidazole dyes
- Patent number 4,600,681
- Issue date Jul 15, 1986
- Agfa-Gevaert Aktiengesellschaft
- Peter Bergthaller
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color photographic recording material containing dye-releasers rele...
- Patent number 4,579,817
- Issue date Apr 1, 1986
- Agfa-Gevaert Aktiengesellschaft
- Peter Bergthaller
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Chelatable 4-thienyl imidazole azo dyes, their use in color photogr...
- Patent number 4,524,123
- Issue date Jun 18, 1985
- Agfa-Gevaert Aktiengesellschaft
- Gunther Schenk
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Monoazo pyridinol dyes chelated or capable of being chelated with m...
- Patent number 4,521,506
- Issue date Jun 4, 1985
- Agfa-Gevaert Aktiengesellschaft
- Rudolf Stolzenburg
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color photographic recording material containing a non-diffusible d...
- Patent number 4,461,827
- Issue date Jul 24, 1984
- Agfa-Gevaert Aktiengesellschaft
- Peter Bergthaller
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for the preparation of styryl dyestuffs
- Patent number 4,439,372
- Issue date Mar 27, 1984
- Bayer Aktiengesellschaft
- Herbert Hugl
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Color photographic recording material
- Patent number 4,418,143
- Issue date Nov 29, 1983
- Agfa-Gevaert Aktiengesellschaft
- Peter Bergthaller
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic recording material with metal complexable, heterocycli...
- Patent number 4,396,710
- Issue date Aug 2, 1983
- Afga-Gevaert Aktiengesellschaft
- Peter Bergthaller
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic recording material with arylazocyanoacetic ester dye r...
- Patent number 4,393,132
- Issue date Jul 12, 1983
- Agfa-Gevaert Aktiengesellschaft
- Gunther Schenk
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for the preparation of 2-amino-6-nitrobenzothiazole
- Patent number 4,369,324
- Issue date Jan 18, 1983
- Bayer Aktiengesellschaft
- Walter Horstmann
- C07 - ORGANIC CHEMISTRY
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
Water-soluble substituted aminocarbonyl monoazo dyestuffs
- Patent number 4,324,722
- Issue date Apr 13, 1982
- Bayer Aktiengesellschaft
- Dieter vor der Bruck
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Monoazo dyestuffs
- Patent number 4,324,723
- Issue date Apr 13, 1982
- Bayer Aktiengesellschaft
- Dieter vor der Bruck
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for dyeing and printing cellulose fibres
- Patent number 4,249,275
- Issue date Feb 10, 1981
- Bayer Aktiengesellschaft
- Herbert Hugl
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
P-Sulphophenoxy-phenylazo indoles
- Patent number 4,248,774
- Issue date Feb 3, 1981
- Bayer Aktiengesellschaft
- Herbert Hugl
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Disazo dyestuff sulphuric acid ester
- Patent number 4,247,460
- Issue date Jan 27, 1981
- Bayer Aktiengesellschaft
- Herbert Hugl
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Monoazo dyestuffs containing diazo component substituted by disulfi...
- Patent number 4,243,584
- Issue date Jan 6, 1981
- Bayer Aktiengesellschaft
- Richard Sommer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Azo dyestuffs
- Patent number 4,231,748
- Issue date Nov 4, 1980
- Bayer Aktiengesellschaft
- Herbert Hugl
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Water-soluble phenylazoaminonaphthol sulphonic acid dyestuffs
- Patent number 4,218,373
- Issue date Aug 19, 1980
- Bayer Aktiengesellschaft
- Gerhard Wolfrum
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Acid disazo dyestuffs containing a substituted thiophene middle com...
- Patent number 4,180,503
- Issue date Dec 25, 1979
- Bayer Aktiengesellschaft
- Dieter vor der Bruck
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Monoazodyestuffs containing diphenamine and phenoxy components
- Patent number 4,179,436
- Issue date Dec 18, 1979
- Bayer Aktiengesellschaft
- Herbert Hugl
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Diphenylamine-azo-hydrocarbylsulfonylphenyl dyestuffs
- Patent number 4,163,013
- Issue date Jul 31, 1979
- Bayer Aktiengesellschaft
- Herbert Hugl
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Phenylazopyrazolo dyestuffs including disulfimide substituent
- Patent number 4,159,265
- Issue date Jun 26, 1979
- Bayer Aktiengesellschaft
- Richard Sommer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for coloring polyurethane foams
- Patent number 4,132,840
- Issue date Jan 2, 1979
- Bayer Aktiengesellschaft
- Herbert Hugl
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Gerhard Wolfrum

Person

Patents Grantslast 30 patents

Method for detecting hydrogen peroxide employing triaryl- and trihe...

Method for detecting esterolytic and proteolytic enzymes

Orthotrifluoromethyl containing phenylazonaphthol dyestuffs

4-alkyl-2-trifluoromethylanilines

3-thienylazo dyes with a gamma-acid coupler

Composition and test device for determining the presence of leukocy...

Color photographic material with azo dicyanoimidazole dyes

Color photographic recording material containing dye-releasers rele...

Chelatable 4-thienyl imidazole azo dyes, their use in color photogr...

Monoazo pyridinol dyes chelated or capable of being chelated with m...

Color photographic recording material containing a non-diffusible d...

Process for the preparation of styryl dyestuffs

Color photographic recording material

Photographic recording material with metal complexable, heterocycli...

Photographic recording material with arylazocyanoacetic ester dye r...

Process for the preparation of 2-amino-6-nitrobenzothiazole

Azo dyestuffs

Water-soluble substituted aminocarbonyl monoazo dyestuffs

Monoazo dyestuffs

Process for dyeing and printing cellulose fibres

P-Sulphophenoxy-phenylazo indoles

Disazo dyestuff sulphuric acid ester

Monoazo dyestuffs containing diazo component substituted by disulfi...

Azo dyestuffs

Water-soluble phenylazoaminonaphthol sulphonic acid dyestuffs

Acid disazo dyestuffs containing a substituted thiophene middle com...

Monoazodyestuffs containing diphenamine and phenoxy components

Diphenylamine-azo-hydrocarbylsulfonylphenyl dyestuffs

Phenylazopyrazolo dyestuffs including disulfimide substituent

Process for coloring polyurethane foams