Ralph Versch

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Eppelsheim, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for the continuous separation by distillation of mixtures th...
- Patent number 8,293,075
- Issue date Oct 23, 2012
- BASF SE
- Helmut Schmidtke
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the continuous separation of mixtures comprising morphol...
- Patent number 8,246,793
- Issue date Aug 21, 2012
- BASF SE
- Helmut Schmidtke
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Processes for continuous fractional distillation of mixtures compri...
- Patent number 8,197,646
- Issue date Jun 12, 2012
- BASF SE
- Helmut Schmidtke
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for continuously preparing N-ethyl-2-pyrrolidone (NEP)
- Patent number 7,994,350
- Issue date Aug 9, 2011
- BASF SE
- Helmut Schmidtke
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR THE CONTINUOUS SEPARATION OF MIXTURES COMPRISING MORPHON...
- Publication number 20120024689
- Publication date Feb 2, 2012
- BASF SE
- Helmut Schmidtke
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR THE CONTINUOUS SEPARATION OF MIXTURES COMPRISING MORPHOL...
- Publication number 20100084258
- Publication date Apr 8, 2010
- BASF SE
- Helmut Schmidtke
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR THE CONTINUOUS SEPARATION OF MIXTURES COMPRISING MORPHO...
- Publication number 20100084257
- Publication date Apr 8, 2010
- BASF SE
- Helmut Schmidtke
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PROCESS FOR CONTINUOUSLY PREPARING N-ETHYL-2-PYRROLIDONE (NEP)
- Publication number 20090187030
- Publication date Jul 23, 2009
- BASF SE
- Helmut Schmidtke
- C07 - ORGANIC CHEMISTRY