Longhui GAO

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Zhangzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Crystal forms C and E of pyrazin-2(1H)-one compound and preparation...
- Patent number 11,680,061
- Issue date Jun 20, 2023
- Zhangzhou Pien Tze Huang Pharmaceutical Co., Ltd.
- Fei Hong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Crystal form D of pyrazine-2(1H)-ketone compound and preparation me...
- Patent number 11,597,722
- Issue date Mar 7, 2023
- Zhangzhou Pien Tze Huang Pharmaceutical Co., Ltd.
- Zhiliang Chen
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
CRYSTAL FORMS C AND E OF PYRAZIN-2(1H)-ONE COMPOUND AND PREPARATION...
- Publication number 20220289722
- Publication date Sep 15, 2022
- ZHANGZHOU PIEN TZE HUANG PHARMACEUTICAL CO., LTD.
- Fei HONG
- C07 - ORGANIC CHEMISTRY
Information Patent Application
CRYSTAL FORM D OF PYRAZINE-2(1H)-KETONE COMPOUND AND PREPARATION ME...
- Publication number 20220281853
- Publication date Sep 8, 2022
- ZHANGZHOU PIEN TZE HUANG PHARMACEUTICAL CO., LTD.
- Zhiliang CHEN
- C07 - ORGANIC CHEMISTRY