Hans Kratzer

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Wuppertal, DE

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Patents Grantslast 30 patents

Information Patent Grant
Production of 3,3-dimethyl-2-oxo-butyric acid salt
- Patent number 4,898,974
- Issue date Feb 6, 1990
- Bayer Aktiengesellschaft
- Karlfried Dickore
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Production of 3,3-dimethyl-2-oxo-butyric acid salt
- Patent number 4,564,704
- Issue date Jan 14, 1986
- Bayer Aktiengesellschaft
- Karlfried Dickore
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of acyl cyanide compounds
- Patent number 4,360,479
- Issue date Nov 23, 1982
- Bayer Aktiengesellschaft
- Kurt Findeisen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of 4-amino-6-tert.-butyl-3-alkylthio-1,2,4-triazin-5-(4...
- Patent number 4,328,340
- Issue date May 4, 1982
- Bayer Aktiengesellschaft
- Gerhard Bonse
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of 4-amino-6-tert.-butyl-3-alkylthio-1,2,4-triazin-5(4H...
- Patent number 4,315,094
- Issue date Feb 9, 1982
- Bayer Aktiengesellschaft
- Gerhard Bonse
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of 4-amino-6-tert.-butyl-3-alkylthio-1,2,4-triazin-5(4H...
- Patent number 4,309,538
- Issue date Jan 5, 1982
- Bayer Aktiengesellschaft
- Thomas Schmidt
- C07 - ORGANIC CHEMISTRY