Patents by Inventor John Siegfried Muhl

John Siegfried Muhl 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).

  • Tire tread
    Patent number: D481989
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: November 11, 2003
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Aleksandr Boris Portnoy, Karl Eric Sundkvist, John Siegfried Muhl