Juncheng ZHENG

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Process for the manufacture of (E)-4-N,N-dialkylamino crotonic acid...
- Patent number 9,242,965
- Issue date Jan 26, 2016
- Boehringer Ingelheim International GmbH
- Juncheng Zheng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing N-H or N-alkyl 2-propynamide
- Patent number 8,895,780
- Issue date Nov 25, 2014
- Boehringer Ingelheim International GmbH
- Da Deng
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR THE MANUFACTURE OF (E)-4-N,N-DIALKYLAMINO CROTONIC ACID...
- Publication number 20150183764
- Publication date Jul 2, 2015
- Boehringer Ingelheim International GmbH
- Juncheng ZHENG
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PROCESS FOR PREPARING N-H OR N-ALKYL 2-PROPYNAMIDE
- Publication number 20140066655
- Publication date Mar 6, 2014
- Boehringer Ingelheim International GmbH
- Da DENG
- C07 - ORGANIC CHEMISTRY