Patents by Inventor Zheng-Xing Zhang

Zheng-Xing Zhang 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).

  • Preparation methods of diterpene lactone compounds and application of the same to antifertility
    Patent number: 5430054
    Abstract: The invention provides methods of preparing a male antifertility agent composed of a diterpene lactone compound obtained from plants of the genus Tripterygium, the diterpene lactone compounds obtained from that method, and the use of the compounds as an antifertility agent.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: July 4, 1995
    Assignees: Jiangsu Family Planning Institute, China Pharmaceutical University, Institute of Dermatology, Chinese Academy of Medical Sciences
    Inventors: Shoa-Zhen Qian, Jia-Run Zheng, Xie-Yu Lu, Peng-Cheng Ma, Chong-Pu Zhang, Yun Chen, Ke-Xian Gu, Wen-Yan Xu, Zheng-Xing Zhang, Long-Sheng Sheng, Deng-Kui An, Ye Xu, Qi-Tai Zhen