Patents by Inventor Changquan C. Sun

Changquan C. 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: 8987320
    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 6, 2012
    Date of Patent: March 24, 2015
    Assignee: Zoetis LLC
    Inventors: Changquan C. Sun, Michael Hawley
  • SOLID SALT FORMS OF A PYRROLE SUBSTITUTED 2-INDOLINONE
    Publication number: 20120142749
    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 6, 2012
    Publication date: June 7, 2012
    Applicants: PFIZER PRODUCTS INC., PFIZER INC.
    Inventors: Changquan C. Sun, Michael Hawley
  • Solid Salt Forms Of A Pyrrole Substituted 2-Indolinone
    Publication number: 20080275101
    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-pyrrolidin-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: September 8, 2006
    Publication date: November 6, 2008
    Applicants: PFIZER INC., PFIZER PRODUCTS INC.
    Inventors: Michael Hawley, Changquan C. Sun