Patents by Inventor Yvonne S. Nelson

Yvonne S. Nelson 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).

  • Safety swab
    Patent number: D318531
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: July 23, 1991
    Inventors: Patricia J. Nelson, Yvonne S. Nelson