Patents by Inventor Michael David Graham

Michael David Graham 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).

  • Seating unit with headrest
    Patent number: D680771
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: April 30, 2013
    Assignee: Steelcase Inc.
    Inventors: Mark William Spoelhof, Alan Ernest Rheault, Michael David Graham, Patrick John Crowley