Wenfeng HUANG

Person

Zhejiang, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Method for preparing voriconazole and intermediate thereof
- Patent number 12,258,330
- Issue date Mar 25, 2025
- Zhejiang Huahai Pharmaceutical Co., Ltd.
- Wenxiang Zhou
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing voriconazole L-camphorsulphonate and voriconazole
- Patent number 11,919,884
- Issue date Mar 5, 2024
- Zhejiang Huahai Pharmaceutical Co., Ltd.
- Hu Huang
- C07 - ORGANIC CHEMISTRY
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 Applicationslast 30 patents

Information Patent Application
METHOD FOR SYNTHESIZING RIVAROXABAN
- Publication number 20250066340
- Publication date Feb 27, 2025
- Zhejiang Huahai Pharmaceutical Co., Ltd.
- Jiaxing HU
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PURIFICATION METHOD FOR CITALOPRAM OR S-CITALOPRAM
- Publication number 20240300911
- Publication date Sep 12, 2024
- ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD.
- Jian ZHANG
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR PURIFYING KEY INTERMEDIATES OF CITALOPRAM
- Publication number 20240092729
- Publication date Mar 21, 2024
- ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD.
- Jian ZHANG
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR PREPARING VORICONAZOLE AND INTERMEDIATE THEREOF
- Publication number 20220162189
- Publication date May 26, 2022
- Zhejiang Huahai Pharmaceutical Co., Ltd.
- Wenxiang ZHOU
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR PREPARING VORICONAZOLE L-CAMPHORSULPHONATE AND VORICONAZOLE
- Publication number 20210276980
- Publication date Sep 9, 2021
- Zhejiang Huahai Pharmaceutical Co. Ltd
- Hu Huang
- C07 - ORGANIC CHEMISTRY
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

Wenfeng HUANG

Person

Patents Grantslast 30 patents

Method for preparing voriconazole and intermediate thereof

Method for preparing voriconazole L-camphorsulphonate and voriconazole

Method for purifying ropinirole hydrochloride

Voriconazole intermediate and voriconazole synthesis method

Method for resolution of citalopram intermediate 5-cyano diol

Method for resolution of citalopram intermediate 5-cyano diol

Method for preparing citalopram diol intermediate

Patents Applicationslast 30 patents

METHOD FOR SYNTHESIZING RIVAROXABAN

PURIFICATION METHOD FOR CITALOPRAM OR S-CITALOPRAM

METHOD FOR PURIFYING KEY INTERMEDIATES OF CITALOPRAM

METHOD FOR PREPARING VORICONAZOLE AND INTERMEDIATE THEREOF

METHOD FOR PREPARING VORICONAZOLE L-CAMPHORSULPHONATE AND VORICONAZOLE

METHOD FOR PURIFYING ROPINIROLE HYDROCHLORIDE

METHOD FOR RESOLUTION OF CITALOPRAM INTERMEDIATE 5-CYANO DIOL

VORICONAZOLE INTERMEDIATE AND VORICONAZOLE SYNTHESIS METHOD

METHOD FOR PREPARING CITALOPRAM DIOL INTERMEDIATE

METHOD FOR PREPARING TRITYL CANDESARTAN

METHOD FOR RESOLUTION OF CITALOPRAM INTERMEDIATE 5-CYANO DIOL