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Patents Grants
last 30 patents
Information
Patent Grant
Method for preparing pregabalin
Patent number
11,919,835
Issue date
Mar 5, 2024
Zhejiang Huahai Pharmaceutical Co., Ltd.
Changming Yang
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Method for preparing pregabalin intermediate (R)-3-(carbamoylmethyl...
Patent number
11,420,932
Issue date
Aug 23, 2022
ZHEIJIANG HUAHAI PHARMACEUTICAL CO., LTD.
Changming Yang
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Method for preparing canagliflozin amorphous form
Patent number
11,008,357
Issue date
May 18, 2021
ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD. (CN)
Gang Qian
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for preparing pregabalin intermediate 3-isobutylglutaric aci...
Patent number
10,577,309
Issue date
Mar 3, 2020
ZHEJIANG HUAHAI PHARMACEUTICALS CO., LTD
Pan Guo
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation process for high-purity dabigatran etexilate
Patent number
10,538,507
Issue date
Jan 21, 2020
ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD.
Lingjie Chen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for preparing pregabalin intermediate 3-carbamoymethyl-5-met...
Patent number
10,173,965
Issue date
Jan 8, 2019
Zhejiang Huahai Pharmaceutical Co., Ltd.
Musong Liu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for preparing 3-carbamoymethyl-5-methylhexanoic acid in recy...
Patent number
10,131,625
Issue date
Nov 20, 2018
Zhejiang Huahai Pharmaceutical Co., Ltd.
Shudong Wang
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method of refining valsartan comprising more than or equal to 10% D...
Patent number
9,815,801
Issue date
Nov 14, 2017
ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD.
Yongbi Chen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation method of rocuronium
Patent number
9,067,965
Issue date
Jun 30, 2015
Zhejiang Huahai Pharmaceutical Co., Ltd.
Zhiwen Zeng
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for purifying rocuronium bromide
Patent number
9,024,013
Issue date
May 5, 2015
Zhejiang Huahai Pharmaceutical Co., Ltd.
Zhiwen Zeng
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PREPARING PREGABALIN
Publication number
20210114972
Publication date
Apr 22, 2021
Zhejiang Huahai Pharmaceutical Co., Ltd.
Changming YANG
C07 - ORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR PREPARING PREGABALIN INTERMEDIATE (R)-3-(CARBAMOYLMETHYL...
Publication number
20210114970
Publication date
Apr 22, 2021
Changming YANG
C07 - ORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR PREPARING CANAGLIFLOZIN AMORPHOUS FORM
Publication number
20200165284
Publication date
May 28, 2020
Zhejiang Huahai Zhicheng Pharmaceutical Co., Ltd.
Gang QIAN
C07 - ORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR PREPARING PREGABALIN INTERMEDIATE 3-ISOBUTYLGLUTARIC ACI...
Publication number
20190152894
Publication date
May 23, 2019
Zhejiang Huahai Pharmaceutical Co., Ltd
Pan GUO
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PREPARATION PROCESS FOR HIGH-PURITY DABIGATRAN ETEXILATE
Publication number
20190152945
Publication date
May 23, 2019
Zhejiang Huahai Pharmaceutical Co., Ltd
Lingjie CHEN
C07 - ORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR PREPARING PREGABALIN INTERMEDIATE 3-CARBAMOYMETHYL-5-MET...
Publication number
20170369422
Publication date
Dec 28, 2017
ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD
Musong Liu
C07 - ORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR PREPARING 3-CARBAMOYMETHYL-5-METHYLHEXANOIC ACID IN RECY...
Publication number
20170334836
Publication date
Nov 23, 2017
Zhejiang Huahai Pharmaceutical Co., Ltd.
Shudong Wang
C07 - ORGANIC CHEMISTRY
Information
Patent Application
METHOD OF REFINING VALSARTAN COMPRISING MORE THAN OR EQUAL TO 10% D...
Publication number
20160347723
Publication date
Dec 1, 2016
ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD
Yongbi Chen
C07 - ORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR PURIFYING ROCURONIUM BROMIDE
Publication number
20140200340
Publication date
Jul 17, 2014
Zhejiang Huahai Pharmaceutical Co., Ltd.
Zhiwen Zeng
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PREPARATION METHOD OF ROCURONIUM
Publication number
20130303753
Publication date
Nov 14, 2013
Zhejiang Huahai Pharmaceutical Co., Ltd.
Zhiwen Zeng
C07 - ORGANIC CHEMISTRY