Michael Friederich

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Krefeld, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for improving the color number of trimethylolpropane
- Patent number 8,686,197
- Issue date Apr 1, 2014
- LANXESS Deutschland GmbH
- Ulrich Notheis
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for isolating di-trimethylol propane
- Patent number 8,642,816
- Issue date Feb 4, 2014
- LANXESS Deutschland GmbH
- Gunter Rauchschwalbe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for improving the color number of trimethylolpropane
- Patent number 8,003,830
- Issue date Aug 23, 2011
- LANXESS Deutschland GmbH
- Wolfgang Mägerlein
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Method for improving the color number of trimethylolpropane
- Publication number 20120178973
- Publication date Jul 12, 2012
- Lanxess Deutschland GmbH
- Ulrich Notheis
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR ISOLATING DI-TRIMETHYLOL PROPANE
- Publication number 20120010435
- Publication date Jan 12, 2012
- Lanxess Deutschland GmbH
- Gunter Rauchschwalbe
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR IMPROVING THE COLOR NUMBER OF TRIMETHYLOLPROPANE
- Publication number 20100137656
- Publication date Jun 3, 2010
- Lanxess Deutschland GmbH
- Wolfgang Mägerlein
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for the preparation of d,l-menthol
- Publication number 20020019573
- Publication date Feb 14, 2002
- Andreas Schlemenat
- C07 - ORGANIC CHEMISTRY