Shanghai Puyi Chemical Co., Ltd.

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Brivaracetam intermediate, preparation method therefor, and prepara...
- Patent number 11,518,741
- Issue date Dec 6, 2022
- Shanghai Puyi Chemical Co., Ltd.
- Hanrong Yang
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Thiazole compounds, methods for preparation and use thereof
- Patent number 9,216,962
- Issue date Dec 22, 2015
- Shanghai Puyi Chemical Co., Ltd.
- Fajun Nan
- C07 - ORGANIC CHEMISTRY

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Patents Applicationslast 30 patents

Information Patent Application
BRIVARACETAM INTERMEDIATE, PREPARATION METHOD THEREFOR, AND PREPARA...
- Publication number 20210253523
- Publication date Aug 19, 2021
- SHANGHAI PUYI CHEMICAL CO., LTD.
- Hanrong YANG
- C07 - ORGANIC CHEMISTRY