Stephan Klein

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of urethanes
- Patent number 9,199,924
- Issue date Dec 1, 2015
- Bayer Intellectual Property GmbH
- Felix Gärtner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst for producing N-substituted carbamates, and the preparatio...
- Patent number 8,450,516
- Issue date May 28, 2013
- Bayer MaterialScience AG
- Stefan Wershofen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing a carbamate, a catalyst applied in the method,...
- Patent number 8,450,518
- Issue date May 28, 2013
- Bayer MaterialScience AG
- Youquan Deng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst for the synthesis of organic carbonates, process for prepa...
- Patent number 8,445,713
- Issue date May 21, 2013
- Bayer MaterialScience AG
- Stefan Wershofen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst for the synthesis of alkyl carbamates, the method for prep...
- Patent number 8,338,634
- Issue date Dec 25, 2012
- Bayer MaterialScience AG
- Youquan Deng
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCING URETHANES
- Publication number 20130303740
- Publication date Nov 14, 2013
- Bayer Intellectual Property GmbH
- Felix Gärtner
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
CATALYST FOR PRODUCING N-SUBSTITUTED CARBAMATES, AND THE PREPARATIO...
- Publication number 20130244867
- Publication date Sep 19, 2013
- Bayer MaterialScience AG
- Stefan Wershofen
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
CATALYST FOR THE SYNTHESIS OF ALKYL CARBAMATES, THE METHOD FOR PREP...
- Publication number 20110160478
- Publication date Jun 30, 2011
- Youquan Deng
- C07 - ORGANIC CHEMISTRY
Information Patent Application
CATALYST FOR THE SYNTHESIS OF ORGANIC CARBONATES, PROCESS FOR PREPA...
- Publication number 20100312001
- Publication date Dec 9, 2010
- Bayer MaterialScience AG
- Stefan Wershofen
- C07 - ORGANIC CHEMISTRY
Information Patent Application
CATALYST FOR PRODUCING N-SUBSTITUTED CARBAMATES, AND THE PREPARATIO...
- Publication number 20100298592
- Publication date Nov 25, 2010
- Bayer MaterialScience AG
- Stefan Wershofen
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR PREPARING A CARBAMATE, A CATALYST APPLIED IN THE METHOD,...
- Publication number 20100274041
- Publication date Oct 28, 2010
- Bayer MaterialScience AG
- Youquan Deng
- C07 - ORGANIC CHEMISTRY