Hao Zheng

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Dihydropteridinone derivatives, preparation process and pharmaceuti...
- Patent number 8,691,822
- Issue date Apr 8, 2014
- Jiangsu Hengrui Medicine Co., Ltd.
- Peng Cho Tang
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Bicyclo-substituted pyrazolon azo derivatives, preparation process...
- Patent number 8,367,710
- Issue date Feb 5, 2013
- Jiangsu Hengrui Medicine Co. Ltd.
- Peng Cho Tang
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
FLAME RETARDANT POLYMER COMPOSITIONS
- Publication number 20150218347
- Publication date Aug 6, 2015
- RHODIA OPERATIONS
- Hao Zheng
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
BICYCLO-SUBSTITUTED PYRAZOLON AZO DERIVATIVES, PREPARATION PROCESS...
- Publication number 20130123507
- Publication date May 16, 2013
- SHANGHAI HENGRUI PHARMACEUTICAL CO. LTD.
- Peng Cho Tang
- C07 - ORGANIC CHEMISTRY
Information Patent Application
DIHYDROPTERIDINONE DERIVATIVES, PREPARATION PROCESS AND PHARMACEUTI...
- Publication number 20120184543
- Publication date Jul 19, 2012
- SHANGHAI HENGRUI PHARMACEUTICAL CO., LTD.
- Peng Cho Tang
- C07 - ORGANIC CHEMISTRY
Information Patent Application
BICYCLO-SUBSTITUTED PYRAZOLON AZO DERIVATIVES, PREPARATION PROCESS...
- Publication number 20100316601
- Publication date Dec 16, 2010
- Peng Cho Tang
- C07 - ORGANIC CHEMISTRY