Patents by Inventor Appavu Chandrasekaren

Appavu Chandrasekaren 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).

  • Patent number: 8853232
    Abstract: The present invention provides a compound of formula I: wherein R1, R2, R2? and X? are as defined and described herein, methods of manufacture thereof and compositions thereof, useful for example as peripheral mu opioid receptor antagonists in treatment of side effects of opioid administration.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: October 7, 2014
    Assignees: Wyeth LLC, Progenics Pharmaceuticals., Inc.
    Inventors: Alfred A. Avey, Appavu Chandrasekaren, Harold D. Doshan, Julio Perez, Yakov Rotshteyn
  • Publication number: 20140142132
    Abstract: The present invention provides a compound of formula I: wherein R1, R2, R2? and X? are as defined and described herein, methods of manufacture thereof and compositions thereof, useful for example as peripheral mu opioid receptor antagonists in treatment of side effects of opioid administration.
    Type: Application
    Filed: September 4, 2013
    Publication date: May 22, 2014
    Applicants: WYETH, LLC, PROGENICS PHARMACEUTICALS, INC.
    Inventors: Alfred A. Avey, Appavu Chandrasekaren, Harold D. Doshan, Julio Perez, Yakov Rotshteyn
  • Patent number: 8546418
    Abstract: The present invention provides a compound of formula I: wherein R1, R2, R2? and X? are as defined and described herein, methods of manufacture thereof and compositions thereof, useful for example as peripheral mu opioid receptor antagonists in treatment of side effects of opioid administration.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: October 1, 2013
    Assignees: Progenics Pharmaceuticals, Inc., Wyeth, LLC
    Inventors: Alfred A. Avey, Appavu Chandrasekaren, Harold D. Doshan, Julio Perez, Yakov Rotshteyn
  • Publication number: 20110190331
    Abstract: The present invention provides a compound of formula I: wherein R1, R2, R2? and X? are as defined and described herein, methods of manufacture thereof and compositions thereof, useful for example as peripheral mu opioid receptor antagonists in treatment of side effects of opioid administration.
    Type: Application
    Filed: March 28, 2008
    Publication date: August 4, 2011
    Inventors: Alfred A. Avey, Appavu Chandrasekaren, Harold D. Doshan, Julio Perez, Yakov Rotshteyn