Patents by Inventor Norma Campbell

Norma Campbell 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).

  • Patent number: D542509
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: May 15, 2007
    Assignee: Blackwood Industries, Inc.
    Inventors: Norma Campbell, Mary Elizabeth Peterson