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Patents Grants
last 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
Information
Patent Grant
Voriconazole intermediate and voriconazole synthesis method
Patent number
10,633,368
Issue date
Apr 28, 2020
Zhejiang Huahai Pharmaceutical Co., Ltd.
Hu Huang
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for resolution of citalopram intermediate 5-cyano diol
Patent number
10,508,076
Issue date
Dec 17, 2019
Zhejiang Huahai Pharmaceuticals Co., Ltd.
Zunjun Liang
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for resolution of citalopram intermediate 5-cyano diol
Patent number
10,287,240
Issue date
May 14, 2019
Zhejiang Hushai Pharmaceuticals Co., Ltd.
Zunjun Liang
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for preparing citalopram diol intermediate
Patent number
10,227,293
Issue date
Mar 12, 2019
Zhejiang Huahai Pharmaceutical Co., Ltd
Zunjun Liang
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
Synthesis Method for Candesartan Cilexetil Intermediate
Publication number
20220089526
Publication date
Mar 24, 2022
Guoliang Tu
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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
Information
Patent Application
METHOD FOR RESOLUTION OF CITALOPRAM INTERMEDIATE 5-CYANO DIOL
Publication number
20190185418
Publication date
Jun 20, 2019
ZHEJIANG HUAHAI PHARMACEUTICALS CO., LTD.
Zunjun LIANG
C07 - ORGANIC CHEMISTRY
Information
Patent Application
VORICONAZOLE INTERMEDIATE AND VORICONAZOLE SYNTHESIS METHOD
Publication number
20190002440
Publication date
Jan 3, 2019
Zhejiang Huahai Pharmaceutical Co., Ltd.
Hu Huang
C07 - ORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR PREPARING CITALOPRAM DIOL INTERMEDIATE
Publication number
20180162805
Publication date
Jun 14, 2018
ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD
Zunjun LIANG
C07 - ORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR PREPARING TRITYL CANDESARTAN
Publication number
20180155326
Publication date
Jun 7, 2018
ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD.
Enmin Lin
C07 - ORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR RESOLUTION OF CITALOPRAM INTERMEDIATE 5-CYANO DIOL
Publication number
20170240505
Publication date
Aug 24, 2017
ZHEJIANG HUAHAI PHARMACEUTICALS CO., LTD.
Zunjun LIANG
C07 - ORGANIC CHEMISTRY