Patents by Inventor Margo McKinlay

Margo McKinlay 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).

  • Sulfonic acid and aldehyde condensation polymers for preventing pregnancy
    Patent number: 5958399
    Abstract: This invention pertains to the discovery that condensation polymers of an aldehyde and aromatic sulfonic acids and fractions thereof, such as formaldehyde naphthalenesulfonic acid condensation polymers, can prevent pregnancy in an individual.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: September 28, 1999
    Assignee: Procept, Inc.
    Inventors: Andrew J. Sonderfan, Albert T. Profy, Toni Chancellor, Margo McKinlay