Patents by Inventor Keith Learn

Keith Learn 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).

  • Substituted pyrazolopyrimidines
    Publication number: 20070281949
    Abstract: The present invention is related to chemical compositions, processes for the preparation thereof and uses of the composition. Particularly, the present invention relates to compositions that include substituted heterobicyclic pyrimidines of Formula (I): wherein R1, R2, R3, R4, R5, X, W, and ring A are as defined herein; pharmaceutical compositions of substituted heterobicyclic pyrimidines of Formula (I); and their use in the treatment of chronic neurodegenerative diseases, neurotraumatic diseases, depression and/or diabetes. More particularly, the present invention relates to substituted pyrazolopyrimidines of Formula (I).
    Type: Application
    Filed: May 14, 2007
    Publication date: December 6, 2007
    Applicant: Cephalon, Inc.
    Inventors: Edward Bacon, Thomas Bailey, Nadine Becknell, Diane Gingrich, Greg Hostetler, Robert Hudkins, Keith Learn, Jason Wagner