Gunter Stephan

Follow

Person

Bergisch-Gladbach, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the treatment of effluent
- Patent number 5,284,589
- Issue date Feb 8, 1994
- Bayer Aktiengesellschaft
- Dietrich Tegtmeyer
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Process for the preparation of benzene compounds
- Patent number 4,550,207
- Issue date Oct 29, 1985
- Bayer Aktiengesellschaft
- Gunter Stephan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Water-insoluble azo-purimidine pigments and their use in coloring s...
- Patent number 4,421,601
- Issue date Dec 20, 1983
- Bayer Aktiengesellschaft
- Gunter Stephan
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Transfer printing process
- Patent number 4,209,297
- Issue date Jun 24, 1980
- Bayer Aktiengesellschaft
- Gunter Stephan
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...