Shiwen ZHANG

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Linhai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method for purifying ropinirole hydrochloride
- Patent number 10,961,194
- Issue date Mar 30, 2021
- Zhejiang Huahai Licheng Pharmaceutical Co., Ltd
- Guoliang Tu
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PURIFYING ROPINIROLE HYDROCHLORIDE
- Publication number 20200172482
- Publication date Jun 4, 2020
- Zhejiang Huahai LiCheng Pharmaceutical Co., Ltd.
- Guoliang TU
- C07 - ORGANIC CHEMISTRY