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Jiangsu, CN
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last 30 patents
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Patent Grant
Polymorphic substance of yonkenafil hydrochloride, preparation meth...
Patent number
9,884,870
Issue date
Feb 6, 2018
Yangtze River Pharmaceutical Group Co., Ltd.
Haibo Zhang
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
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Patent Application
DEZOCINE DERIVATIVE AND MEDICAL USE THEREOF
Publication number
20220117913
Publication date
Apr 21, 2022
YANGTZE RIVER PHARMACEUTICAL GROUP CO., LTD.
Liming SHAO
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patent Application
POLYMORPHIC SUBSTANCE OF YONKENAFIL HYDROCHLORIDE, PREPARATION METH...
Publication number
20170349592
Publication date
Dec 7, 2017
YANGTZE RIVER PHARMACEUTICAL GROUP CO., LTD.
Haibo Zhang
C07 - ORGANIC CHEMISTRY