Yongsheng Li

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Chongqing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Stereospecific synthesis process for tretinoin compounds
- Patent number 8,835,680
- Issue date Sep 16, 2014
- Chongqing Huabangshengkai Pharm. Co., Ltd.
- Qingjun Deng
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
STEREOSPECIFIC SYNTHESIS PROCESS FOR TRETINOIN COMPOUNDS
- Publication number 20140275617
- Publication date Sep 18, 2014
- CHONGQING HUABANGSHENGKAI PHARM. CO., LTD
- Qingjun Deng
- C07 - ORGANIC CHEMISTRY