Stephan Schaflein

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Haltern am See, DE

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Patents Grantslast 30 patents

Information Patent Grant
Purification of a crude lactam mixture by means of melt crystalliza...
- Patent number 7,807,826
- Issue date Oct 5, 2010
- Evonik Degussa GmbH
- Axel Hengstermann
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
PURIFICATION OF A CRUDE LACTAM MIXTURE BY MEANS OF MELT CRYSTALLIZA...
- Publication number 20090088567
- Publication date Apr 2, 2009
- EVONIK DEGUSSA GmbH
- Axel Hengstermann
- C07 - ORGANIC CHEMISTRY