Patents by Inventor Ligang Qian

Ligang Qian 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).

  • Pyrrolo[2,1-f][1,2,4]triazine inhibitors of kinases
    Patent number: 6869952
    Abstract: The present invention provides compounds of formula I, and pharmaceutically acceptable salts thereof. The formula I compounds inhibit the tyrosine kinase activity of growth factor receptors such as VEGFR-2 and FGFR-1, thereby making them useful as anti-cancer agents. The formula I compounds are also useful for the treatment of other diseases associated with signal transduction pathways operating through growth factor receptors.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: March 22, 2005
    Assignee: Bristol Myers Squibb Company
    Inventors: Rajeev S. Bhide, Zhen-Wei Cai, Ligang Qian, Stephanie Barbosa
  • Heterocyclic inhibitors of kinases
    Publication number: 20040077696
    Abstract: The present invention provides compounds of formula I 1
    Type: Application
    Filed: June 18, 2003
    Publication date: April 22, 2004
    Inventors: Robert M. Borzilleri, Rajeev S. Bhide, John S. Tokarski, Peter Zheng, Ligang Qian, Zhen-Wei Cai
  • Process for preparing certain pyrrolotriazine compounds
    Publication number: 20040077858
    Abstract: The present invention relates to a process for preparing certain pyrrolotriazine compounds of the formula 1
    Type: Application
    Filed: July 18, 2003
    Publication date: April 22, 2004
    Inventors: Rajeev S. Bhide, Junying Fan, Luca Parlanti, Stephanie Barbosa, Ligang Qian, Zhen-Wei Cai, Francis S. Gibson
  • Novel inhibitors of kinases
    Publication number: 20040072832
    Abstract: The present invention provides compounds of formula I, 1
    Type: Application
    Filed: July 18, 2003
    Publication date: April 15, 2004
    Inventors: Rajeev S. Bhide, Zhen-Wei Cai, Ligang Qian, Stephanie Barbosa