Patents by Inventor Karen Blackstone

Karen Blackstone 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: D446016
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: August 7, 2001
    Assignee: The Longaberger Company
    Inventors: John Dinan, Sun Lacy, Karen Blackstone