Stephan Ehlers

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Newton Square, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Double metal cyanide catalysts for producing polyether polyols
- Patent number 6,919,293
- Issue date Jul 19, 2005
- Bayer Aktiengesellschaft
- Pieter Ooms
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Static micromixer
- Patent number 6,802,640
- Issue date Oct 12, 2004
- Forschungszentrum Karlsruhc GmbH
- Klaus Schubert
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for the preparation of polyether polyols
- Patent number 6,776,925
- Issue date Aug 17, 2004
- Bayer Aktiengesellschaft
- Jörg Hofmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing polyether polyols
- Patent number 6,670,406
- Issue date Dec 30, 2003
- Bayer Aktiengesellschaft
- Jörg Hofmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for preparing polyether polyols
- Patent number 6,486,361
- Issue date Nov 26, 2002
- Bayer Aktiengesellschaft
- Stephan Ehlers
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Process for producing polyether polyols
- Publication number 20020198278
- Publication date Dec 26, 2002
- Jorg Hofmann
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Process for the preparation of polyether polyols
- Publication number 20020169229
- Publication date Nov 14, 2002
- Jorg Hofmann
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Static micromixer
- Publication number 20020057627
- Publication date May 16, 2002
- Klaus Schubert
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL