Patents by Inventor Junran YANG

Junran YANG 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 oxopicolinamide derivative and preparation method therefor
    Patent number: 11299462
    Abstract: Provided are a crystal form of an oxopicolinamide derivative and a preparation method therefor. In particular, provided are crystal forms A, B, C, D, E, and F of a compound as shown in formula (I) and a preparation method therefor. Crystal forms A, B, C, D, E, and F of the compound of formula (I) obtained in the present disclosure have good crystal stability and chemical stability, and can be better used in clinical treatment.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: April 12, 2022
    Assignee: Jiangsu Hengrui Medicine Co., Ltd.
    Inventors: Junran Yang, Lin Wang, Qiyun Shao, Zhenxing Du, Likun Wang
  • CRYSTAL FORM OF MALEATE OF TYROSINE KINASE INHIBITOR AND PREPARATION METHOD THEREFOR
    Publication number: 20210355109
    Abstract: Provided are a crystal form of a maleate of a tyrosine kinase inhibitor and a preparation method therefor. Specifically, provided are I crystal form, a II crystal form, a III crystal form, a IV crystal form and a V crystal form of the compound as shown in formula (I) and a preparation method therefor. The new crystal form has a good stability, thereby making same better to use in clinical treatments.
    Type: Application
    Filed: October 21, 2019
    Publication date: November 18, 2021
    Applicant: JIANGSU HENGRUI MEDICINE CO., LTD.
    Inventors: Zhenjun QIU, Quanliang ZHANG, Yanli WEI, Yongxing CAO, Junran YANG, Yahui MA, Zhenxing DU, Jie WANG
  • CRYSTAL FORM OF OXOPICOLINAMIDE DERIVATIVE AND PREPARATION METHOD THEREFOR
    Publication number: 20200385353
    Abstract: Provided are a crystal form of an oxopicolinamide derivative and a preparation method therefor. In particular, provided are crystal forms A, B, C, D, E, and F of a compound as shown in formula (I) and a preparation method therefor. Crystal forms A, B, C, D, E, and F of the compound of formula (I) obtained in the present disclosure have good crystal stability and chemical stability, and can be better used in clinical treatment.
    Type: Application
    Filed: February 26, 2019
    Publication date: December 10, 2020
    Inventors: Junran YANG, Lin WANG, Qiyun SHAO, Zhenxing DU, Likun WANG