Patents by Inventor Deping ZHENG

Deping ZHENG 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 of Abiraterone propionate and preparation method therefor
    Patent number: 10087212
    Abstract: The present invention relates to the field of pharmaceutical chemistry, and particularly to a crystal form of Abiraterone propionate and a preparation method therefor. Characteristic diffraction peaks occur at positions, where the 2? value is 5.7°, 11.9°, 12.4°, 14.9°, 15.8°, 16.7°, 18.5°, 19.1°, 21.7°, 22.4°, and 39.9°±0.2°, in an X-ray powder diffraction spectrum of the crystal form of Abiraterone propionate.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: October 2, 2018
    Assignee: CHONGQING PHARMACEUTICAL RESEARCH INSTITUTE CO., LTD
    Inventors: Naiguo Xing, Yan Shangguan, Deping Zheng, Fanglu Chen
  • CRYSTAL FORM OF ABIRATERONE PROPIONATE AND PREPARATION METHOD THEREFOR
    Publication number: 20180030085
    Abstract: The present invention relates to the field of pharmaceutical chemistry, and particularly to a crystal form of Abiraterone propionate and a preparation method therefor. Characteristic diffraction peaks occur at positions, where the 2? value is 5.7°, 11.9°, 12.4°, 14.9°, 15.8°, 16.7°, 18.5°, 19.1°, 21.7°, 22.4°, and 39.9°±0.2°, in an X-ray powder diffraction spectrum of the crystal form of Abiraterone propionate.
    Type: Application
    Filed: February 3, 2016
    Publication date: February 1, 2018
    Applicant: CHONGQING PHARMACEUTICAL RESEARCH INSTITUTE CO., LTD
    Inventors: Naiguo XING, Yan SHANGGUAN, Deping ZHENG, Fanglu CHEN