Patents by Inventor John D. Leszyk

John D. Leszyk 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).

  • Sperm associated protein kinase polypeptides, corresponding nucleic acids, and methods of use
    Patent number: 6531305
    Abstract: The invention relates to polypeptides that are sperm-specific forms of the catalytic subunit of cAMP-dependent protein kinases, referred to herein as “Cs polypeptides,” nucleic acid molecules encoding Cs polypeptides, and uses thereof. Cs is found in sperm cells and is related to the cAMP dependent protein kinase C&agr;1.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: March 11, 2003
    Assignee: University of Massachusetts
    Inventors: George B. Witman, Jovenal T. San Agustin, John D. Leszyk