Patents by Inventor John Cronk

John Cronk 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).

  • Audio system keypad
    Patent number: D481706
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: November 4, 2003
    Assignee: Russound/FMP, Inc.
    Inventors: Allen Boothroyd, William Ramsdell, Andrew Lewis, John Cronk, Joshua Cooper