Hao Wei

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Nanjing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Methods of resolving racemic mixture to obtain (−)-Huperzine A
- Patent number 10,829,455
- Issue date Nov 10, 2020
- Yonggang Xu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Methods of resolving racemic mixture to obtain (−)-huperzine A
- Patent number 10,287,249
- Issue date May 14, 2019
- Amphastar Pharmaceuticals, Inc.
- Yonggang Xu
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
METHODS OF RESOLVING RACEMIC MIXTURE TO OBTAIN (-)-HUPERZINE A
- Publication number 20190210972
- Publication date Jul 11, 2019
- AMPHASTAR NANJING PHARMACEUTICALS INC.
- Yonggang Xu
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHODS OF RESOLVING RACEMIC MIXTURE TO OBTAIN (-)-HUPERZINE A
- Publication number 20160096808
- Publication date Apr 7, 2016
- Amphastar Pharmaceuticals Inc.
- Yonggang Xu
- C07 - ORGANIC CHEMISTRY