Patents Assigned to United States of America The U.S. Environmental Protection Agency
  • Contraceptives based on SP22 and SP22 antibodies
    Patent number: 7211255
    Abstract: Oral, topical and injectable contraceptives, which are based on sperm protein 22 kDa (SP22) polypeptides and antibodies and infertility diagnostics are provided.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: May 1, 2007
    Assignee: United States of America The U.S. Environmental Protection Agency
    Inventor: Gary R. Klinefelter