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Patents Grants
last 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
Crystalline form and B crystalline form of pyrazine-2(1H)-ketone co...
Patent number
11,603,366
Issue date
Mar 14, 2023
Zhangzhou Pien Tze Huang Pharmaceutical Co., Ltd.
Juan Yu
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
Information
Patent Grant
Pyrazine-2(1H)-ketone compound preparation method
Patent number
11,535,609
Issue date
Dec 27, 2022
Zhangzhou Pien Tze Huang Pharmaceutical Co., Ltd.
Jinming Huang
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Pyrazine-2(1H)-ketone compound acting as FGFR inhibitor
Patent number
11,286,248
Issue date
Mar 29, 2022
Zhangzhou Pien Tze Huang Pharmaceutical Co., Ltd.
Yang Zhang
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
PYRAZINE-2(1H)-KETONE COMPOUND PREPARATION METHOD
Publication number
20220380350
Publication date
Dec 1, 2022
ZHANGZHOU PIEN TZE HUANG PHARMACEUTICAL CO., LTD.
Jinming HUANG
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
A CRYSTALLINE FORM AND B CRYSTALLINE FORM OF PYRAZINE-2(1H)-KETONE...
Publication number
20220315559
Publication date
Oct 6, 2022
ZHANGZHOU PIEN TZE HUANG PHARMACEUTICAL CO., LTD.
Juan YU
C07 - ORGANIC CHEMISTRY
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
Information
Patent Application
NITROGEN-CONTAINING SPIRO DERIVATIVE AS RET INHIBITOR
Publication number
20220204507
Publication date
Jun 30, 2022
GUANGZHOU BAIYUNSHAN PHARMACEUTICAL HOLDINGS CO., LTD. BAIYUNSHAN PHARMACEUTI...
Jiansong WANG
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
FGFR INHIBITOR COMPOUND IN SOLID FORM AND PREPARATION METHOD THEREFOR
Publication number
20220177475
Publication date
Jun 9, 2022
CSPC ZHONGQI PHARMACEUTICAL TECHNOLOGY (SHIJIAZHUANG) CO., LTD.
Zhifei FU
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PYRAZINE-2(1H)-KETONE COMPOUND ACTING AS FGFR INHIBITOR
Publication number
20210040070
Publication date
Feb 11, 2021
ZHANGZHOU PIEN TZE HUANG PHARMACEUTICAL CO., LTD.
Yang ZHANG
C07 - ORGANIC CHEMISTRY
Information
Patent Application
IDO1 INHIBITOR AND PREPARATION METHOD AND APPLICATION THEREOF
Publication number
20190169140
Publication date
Jun 6, 2019
SHANDONG LUYE PHARMACEUTICAL CO., LTD.
Yang ZHANG
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE