Patents by Inventor Walter Grim

Walter Grim 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).

  • Perambulator
    Patent number: D579826
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: November 4, 2008
    Assignee: WF International Holding B.V.
    Inventor: Walter Grim
  • Perambulator
    Patent number: D608254
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: January 19, 2010
    Assignee: WF International Holding B.V.
    Inventor: Walter Grim
  • Perambulator
    Patent number: D620846
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: August 3, 2010
    Assignee: WF International Holding B.V.
    Inventor: Walter Grim