Patents by Inventor Claude L. Steen

Claude L. Steen 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: D401380
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: November 17, 1998
    Inventors: Claude L. Steen, Bonnie J. Steen