Patents by Inventor Johannes Mùller-Hartburg

Johannes Mùller-Hartburg 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).

  • Wall or floor tile
    Patent number: 6260326
    Abstract: A floor tile or wall tile in the form of a panel has a frame and a filling. The frame and the filling are nondetachably connected in a utility state to form an integral part. The connection between frame and filling interlocks tongue and groovc-like. The frame extends beyond the filling in the plane of the tile at least the thickness of the frame. The filling is of the same thickness as the frame.
    Type: Grant
    Filed: March 22, 1997
    Date of Patent: July 17, 2001
    Inventor: Johannes Mùller-Hartburg