Patents by Inventor Yuanfu TANG

Yuanfu TANG 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).

  • CRYSTAL FORM I OF CANAGLIFLOZIN AND PREPARATION METHOD THEREOF
    Publication number: 20170342061
    Abstract: Disclosed in the present invention is a crystal form I of Canagliflozin, and an X-ray powder diffraction spectrum of the crystal form I has characteristic diffraction peaks when 2? is at the position of 4.4±0.2°, 8.4±0.2°, 16.8±0.2°, 17.5±0.2°, 18.0±0.2°, and 22.8±0.2°. The crystal form is physically and chemically stable and is suitable for manufacturing of various preparations.
    Type: Application
    Filed: March 27, 2015
    Publication date: November 30, 2017
    Applicant: CHONGQING PHARMACEUTICAL INDUSTRIAL RESEARCH INSTITUTE CO., LTD
    Inventors: Fei WANG, Jian ZHANG, Meng LIN, Yuanfu TANG, Hao CHEN, Huangshu LEI