Helmut Grumann

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Perach, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for purifying 1,2-dichloroethane
- Patent number 7,309,804
- Issue date Dec 18, 2007
- Vinnolit Technologie GmbH & Co.
- Helmut Grumann
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
PROCESS AND APPARATUS FOR PRODUCING ETHYLENICALLY UNSATURATED HALOG...
- Publication number 20110237848
- Publication date Sep 29, 2011
- Michael Benje
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process and apparatus for producing ethylenically unsaturated halog...
- Publication number 20110230683
- Publication date Sep 22, 2011
- Michael Benje
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PROCESS AND APPARATUS FOR PRODUCING EHTYLENICALLY UNSATURATED HALOG...
- Publication number 20110230684
- Publication date Sep 22, 2011
- Michael Benje
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for purifying 1,2-dichloroethane
- Publication number 20030055301
- Publication date Mar 20, 2003
- Helmut Grumann
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for producing 1,2-dichloroethane
- Publication number 20030004380
- Publication date Jan 2, 2003
- Helmut Grumann
- C07 - ORGANIC CHEMISTRY