Patents by Inventor John Frohne

John Frohne 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).

  • Display unit
    Patent number: D642405
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: August 2, 2011
    Assignee: Chicago Display Marketing Corporation
    Inventor: John Frohne