Patents by Inventor Lingwu Chen

Lingwu Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • DEZOCINE DERIVATIVE AND MEDICAL USE THEREOF
    Publication number: 20220117913
    Abstract: Provided are a dezocine derivative represented by Formula I, or a tautomer, optical isomer, nitrogen oxide, solvate, pharmaceutically acceptable salt or prodrug thereof, as well as a pharmaceutical composition containing the same, preparations thereof, and medical use thereof, and the structure of Formula I is as below:
    Type: Application
    Filed: January 31, 2020
    Publication date: April 21, 2022
    Inventors: Liming SHAO, Tao HU, Haoyu XU, Lingwu CHEN, Yiquan ZOU, Wei CAI, Xicheng YANG, Haodong LI, Dengqi XUE
  • Polymorphic substance of yonkenafil hydrochloride, preparation method therefor, and composition and use thereof
    Patent number: 9884870
    Abstract: The present application discloses an A-type polymorphic substance of yonkenafil hydrochloride and a preparation method, a composition and use thereof. The powder diffraction pattern of the A-type polymorphic substance of yonkenafil hydrochloride comprises diffraction peaks at three or more 2? values selected from: 8.4±0.2°, 11.3±0.2°, 13.9±0.2°, 14.2±0.2°, 14.7±0.2°, 16.8±0.2°, 17.1±0.2°, 19.7±0.2°, 21.0±0.2°, 21.7±0.2°, 22.4±0.2°, 23.3±0.2°, 23.8±0.2°, 26.8±0.2°, 27.5±0.2°, 28.0±0.2°.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: February 6, 2018
    Assignee: Yangtze River Pharmaceutical Group Co., Ltd.
    Inventors: Haibo Zhang, Lingwu Chen, Xianfeng Lu, Huixing Liang, Yongfeng Wang, Lianyong Shi, Hongpeng Luo
  • POLYMORPHIC SUBSTANCE OF YONKENAFIL HYDROCHLORIDE, PREPARATION METHOD THEREFOR, AND COMPOSITION AND USE THEREOF
    Publication number: 20170349592
    Abstract: The present application discloses an A-type polymorphic substance of yonkenafil hydrochloride and a preparation method, a composition and use thereof. The powder diffraction pattern of the A-type polymorphic substance of yonkenafil hydrochloride comprises diffraction peaks at three or more 2? values selected from: 8.4±0.2°, 11.3±0.2°, 13.9±0.2°, 14.2±0.2°, 14.7±0.2°, 16.8±0.2°, 17.1±0.2°, 19.7±0.2°, 21.0±0.2°, 21.7±0.2°, 22.4±0.2°, 23.3±0.2°, 23.8±0.2°, 26.8±0.2°, 27.5±0.2°, 28.0±0.2°.
    Type: Application
    Filed: November 19, 2015
    Publication date: December 7, 2017
    Inventors: Haibo Zhang, Lingwu Chen, Xianfeng Lu, Huixing Liang, Yongfeng Wang, Lianyong Shi, Hongpeng Luo