Willi R. Steckelberg

Person

Hofheim, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Polycondensates containing phosphinic and phosphonic acid groups
- Patent number 5,530,093
- Issue date Jun 25, 1996
- Cassella Aktiengesellschaft
- Fritz Engelhardt
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Polycondensates containing phosphinic or phosphonic acid groups and...
- Patent number 5,492,995
- Issue date Feb 20, 1996
- Hoechst Aktiengsellschaft
- Fritz Engelhardt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of N-substituted nitro-p-phenylenediamines
- Patent number 5,414,128
- Issue date May 9, 1995
- Cassella AG
- Willi Steckelberg
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
N4-substituted 1-alkoxy-2-acylamino-4-aminobenzenes, process for th...
- Patent number 5,387,716
- Issue date Feb 7, 1995
- Cassella Aktiengesellschaft
- Willi Steckelberg
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Water-soluble sulphur dyes, their preparation and use
- Patent number 5,383,961
- Issue date Jan 24, 1995
- Cassella AG
- Wolfgang Bauer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Water-insoluble sulphur dyes, their preparation and use
- Patent number 5,374,302
- Issue date Dec 20, 1994
- Cassella AG
- Wolfgang Bauer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Water-insoluble sulphur dyes, their preparation and use
- Patent number 5,368,637
- Issue date Nov 29, 1994
- Cassella AG
- Wolfgang Bauer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for dyeing and printing blend fabrics of polyester and natu...
- Patent number 5,174,791
- Issue date Dec 29, 1992
- Cassella Aktiengesellschaft
- Ulrich Buhler
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Water-soluble trisazo dyes
- Patent number 5,110,917
- Issue date May 5, 1992
- Cassella Aktiengesellschaft
- Wolfgang Bauer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
.beta.-modification of 1-(2,4-dinitro-6-chloro-phenylazo)-2-propion...
- Patent number 5,037,962
- Issue date Aug 6, 1991
- Cassella AG.
- Hubert Kruse
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for preparing 2,5-dichlorophenylthioglycollic acid
- Patent number 4,918,221
- Issue date Apr 17, 1990
- Cassella AG.
- Wolfgang Bauer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Water-soluble yellow monoazo dyestuffs
- Patent number 4,881,977
- Issue date Nov 21, 1989
- Cassella Aktiengesellschaft
- Wolfgang Bauer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Aqueous formulation of 1,2-benzisothiazolin-3-one
- Patent number 4,871,754
- Issue date Oct 3, 1989
- Cassella Aktiengesellschaft
- Wolfgang Bauer
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Soil repellent fluorinated esters of multi-ring anhydride systems
- Patent number 4,595,628
- Issue date Jun 17, 1986
- American Hoescht Corporation
- Michael G. Kelly
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...

Willi R. Steckelberg

Person

Patents Grantslast 30 patents

Polycondensates containing phosphinic and phosphonic acid groups

Polycondensates containing phosphinic or phosphonic acid groups and...

Process for the preparation of N-substituted nitro-p-phenylenediamines

N4-substituted 1-alkoxy-2-acylamino-4-aminobenzenes, process for th...

Water-soluble sulphur dyes, their preparation and use

Water-insoluble sulphur dyes, their preparation and use

Water-insoluble sulphur dyes, their preparation and use

Process for dyeing and printing blend fabrics of polyester and natu...

Water-soluble trisazo dyes

.beta.-modification of 1-(2,4-dinitro-6-chloro-phenylazo)-2-propion...

Process for preparing 2,5-dichlorophenylthioglycollic acid

Water-soluble yellow monoazo dyestuffs

Aqueous formulation of 1,2-benzisothiazolin-3-one

Soil repellent fluorinated esters of multi-ring anhydride systems