Erhard Weber

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Wuppertal, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of pyrazole
- Patent number 4,434,292
- Issue date Feb 28, 1984
- Bayer Aktiengesellschaft
- Ulrich Heinemann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of pyrazole
- Patent number 4,423,225
- Issue date Dec 27, 1983
- Bayer Aktiengesellschaft
- Reinhard Lantzsch
- C07 - ORGANIC CHEMISTRY