Patents by Inventor Guimin DONG

Guimin DONG 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 method for benzoxazoleoxazine ketone compound and intermediate and crystal form thereof
    Patent number: 10106557
    Abstract: A preparation method for a high-purity benzoxazoleoxazine ketone compound, a crystal form thereof, and an intermediate compound for preparing a compound of formula (I), and a preparation method therefor.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: October 23, 2018
    Assignee: NORTH CHINA PHARMACEUTICAL NEW DRUG R&D CO., LTD.
    Inventors: Shuhui Chen, Zhaozhong Ding, Gangli Gong, Xiaobing Yan, Wei Huang, Feng Guo, Baoling Duan, Renlong Gao, Pingfan Zhou, Xinhua Lu, Guimin Dong
  • PREPARATION METHOD FOR BENZOXAZOLEOXAZINE KETONE COMPOUND AND INTERMEDIATE AND CRYSTAL FORM THEREOF
    Publication number: 20170275299
    Abstract: A preparation method for a high-purity benzoxazoleoxazine ketone compound, a crystal form thereof, and an intermediate compound for preparing a compound of formula (I), and a preparation method therefor.
    Type: Application
    Filed: September 23, 2015
    Publication date: September 28, 2017
    Applicant: NORTH CHINA PHARMACEUTICAL NEW DRUG R&D CO., LTD.
    Inventors: Shuhui CHEN, Zhaozhong DING, Gangli GONG, Xiaobing YAN, Wei HUANG, Feng GUO, Baoling DUAN, Renlong GAO, Pingfan ZHOU, Xinhua LU, Guimin DONG