Patents by Inventor Changquan Calvin Sun

Changquan Calvin Sun 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).

  • Solid salt forms of a pyrrole substituted 2-indolinone
    Patent number: 9290479
    Abstract: The present invention relates to solid salt forms of the 3-pyrrole substituted 2-indolinone compound 5-[5-fluoro-2-oxo-1,2-dihydro-indol-(3Z)-ylidenemethyl]-2,4-dimethyl-1H-pyrrole-3-carboxylic acid (2-pirrolidin-1-yl-ethyl)-amide. It also relates to polymorphs of the phosphate salt of the amide. The invention further relates to the use of the salts and polymorphs in the treatment of protein kinase related disorders.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: March 22, 2016
    Assignee: Zoetis Services LLC
    Inventors: Michael Hawley, Changquan Calvin Sun
  • Solid Salt Forms Of A Pyrrole Substituted 2-indolinone
    Publication number: 20150158849
    Abstract: The present invention relates to solid salt forms of the 3-pyrrole substituted 2-indolinone compound 5-[5-fluoro-2-oxo-1,2-dihydro-indol-(3Z)-ylidenemethyl]-2,4-dimethyl-1H-pyrrole-3-carboxylic acid (2-pirrolidin-1-yl-ethyl)-amide. It also relates to polymorphs of the phosphate salt of the amide. The invention further relates to the use of the salts and polymorphs in the treatment of protein kinase related disorders.
    Type: Application
    Filed: February 12, 2015
    Publication date: June 11, 2015
    Inventors: Michael Hawley, Changquan Calvin Sun