Patents by Inventor Welhan Zhang

Welhan Zhang 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).

  • Imidazopyridazine compounds and their use
    Patent number: 10208066
    Abstract: This disclosure provides novel imidazopyridazine compounds of formula (I) and pharmaceutical acceptable salt thereof, pharmaceutical compositions containing them, a process for preparing them, and their practical effect in inhibiting PI3K and potential use in treating a disease responsive to inhibition of PI3K, for example, an inflammatory disease, autoimmune disease or cancer.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: February 19, 2019
    Assignee: HUTCHISON MEDIPHARMA LIMITED
    Inventors: Wei-Guo Su, Guangxiu Dai, Welhan Zhang, Wei Deng
  • NOVEL IMIDAZOPYRIDAZINE COMPOUNDS AND THEIR USE
    Publication number: 20170253618
    Abstract: This disclosure provides novel imidazopyridazine compounds of formula (I) and pharmaceutical acceptable salt thereof, pharmaceutical compositions containing them, a process for preparing them, and their practical effect in inhibiting PI3K and potential use in treating a disease responsive to inhibition of PI3K, for example, an inflammatory disease, autoimmune disease or cancer.
    Type: Application
    Filed: September 23, 2015
    Publication date: September 7, 2017
    Inventors: Wei-Guo Su, Guangxiu Dai, Welhan Zhang, Wei Deng