Patents by Inventor Shuwen DUAN

Shuwen DUAN 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).

  • SALT FORM OF TETRA-SUBSTITUTED OLEFIN COMPOUND, CRYSTAL, AND PREPARATION METHOD THEREFOR
    Publication number: 20240043401
    Abstract: A salt form of a tetra-substituted olefin compound, a crystal of the compound and the salt, and a preparation method relating to a crystal of a compound represented by formula (I), a salt thereof, a crystal of the salt thereof, and a preparation method therefor.
    Type: Application
    Filed: December 30, 2021
    Publication date: February 8, 2024
    Applicant: CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Shuwen DUAN, Jianyu LU, Ting YAO, Lihong HU, Charles Z. DING, Jian LI, Shuhui CHEN, Xiquan ZHANG
  • ESTROGEN RECEPTOR ANTAGONIST
    Publication number: 20220033376
    Abstract: Provided is an indole compound. In particular, disclosed are a compound represented by formula (II) or an isomer or pharmaceutically acceptable salt thereof and a use of the same as an estrogen receptor antagonist in preparing a drug for treating estrogen receptor-positive breast cancer.
    Type: Application
    Filed: December 17, 2019
    Publication date: February 3, 2022
    Inventors: Shuwen DUAN, Jianyu LU, Lihong HU, Charles Z. DING, Guoping HU, Jian LI, Shuhui CHEN