Patents by Inventor Linda C. Keller

Linda C. Keller 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).

  • Ring
    Patent number: D457459
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: May 21, 2002
    Inventors: Tom Q. Keller, Linda C. Keller