Gerhard Hempel

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Werne, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of 21-bromo-4-pregnene-3,20-dione deriv...
- Patent number 5,332,847
- Issue date Jul 26, 1994
- Schering Aktiengesellschaft
- Gerhard Hempel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for production of 6.alpha.,9.alpha.-difluoro-11.beta.,17.al...
- Patent number 4,898,693
- Issue date Feb 6, 1990
- Schering Aktiengesellschaft
- Gerhard Hempel
- C07 - ORGANIC CHEMISTRY