Patents by Inventor JINGKAI GU

JINGKAI GU 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).

  • Patent number: 10829497
    Abstract: Disclosed are a crystal form II of a thienopyridine derivative bisulfate and a preparation method therefor and the use thereof. The X-ray powder diffraction pattern of the crystal form II represented by the 2? diffraction angle exhibits characteristic diffraction peaks at 12.86°, 13.58°, 15.58°, 17.64°, 18.42°, 21.56°, 22.90°, 23.70° and 24.64°. The crystal form can be used as an active ingredient for preparing a pharmaceutical composition for preventing and treating diseases caused by thrombi. Compared with the original crystal form, the crystal form II of the invention has a better stability, with denser bulk solid particles, and is less susceptible to static electricity, and has better fluidity and compressibility, and when used as an active ingredient for preparing a pharmaceutical composition, the pharmaceutical preparation prepared with the crystal form II has a stronger stability.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: November 10, 2020
    Assignee: ZHONGRONG KAITE (BEIJING) BIOTECHNOLOGY CO., LTD.
    Inventors: Jingkai Gu, Xueyu Xu, Hao Wang, Xue Zhao
  • Publication number: 20200207781
    Abstract: Disclosed are a crystal form II of a thienopyridine derivative bisulfate and a preparation method therefor and the use thereof. The X-ray powder diffraction pattern of the crystal form II represented by the 2? diffraction angle exhibits characteristic diffraction peaks at 12.86°, 13.58°, 15.58°, 17.64°, 18.42°, 21.56°, 22.90°, 23.70° and 24.64°. The crystal form can be used as an active ingredient for preparing a pharmaceutical composition for preventing and treating diseases caused by thrombi. Compared with the original crystal form, the crystal form II of the invention has a better stability, with denser bulk solid particles, and is less susceptible to static electricity, and has better fluidity and compressibility, and when used as an active ingredient for preparing a pharmaceutical composition, the pharmaceutical preparation prepared with the crystal form II has a stronger stability.
    Type: Application
    Filed: June 25, 2018
    Publication date: July 2, 2020
    Applicant: ZHONGRONG KAITE (BEIJING) BIOTECHNOLOGY CO., LTD.
    Inventors: JINGKAI GU, XUEYU XU, HAO WANG, XUE ZHAO