Patents by Inventor Hans Rinninger

Hans Rinninger 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).

  • Set of paving stones, particularly set of concrete paving stones
    Patent number: 4792257
    Abstract: A paving stone set includes a square paving-stone, a larger rectangular paving-stone and a smaller rectangular paving-stone. Each of the paving stones has generally planar top and bottom surfaces and generally planar side walls, with a clothoid shaped surface being formed on two corners of each paving-stone. The radius of curvature of each clothoid shaped surface may be different from that of the other clothoid shaped surfaces on each paving-stone. The top surface may have a different color and texture than the bottom surface. The paving-stones may be irregularly broken surfaces.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: December 20, 1988
    Assignee: Hans Rinninger u. Sohn GmbH u. Co.
    Inventor: Hans Rinninger
  • Paving stone
    Patent number: D448092
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: September 18, 2001
    Assignee: Hans Rinninger u. Sohn GmbH u. Co.
    Inventor: Hans Rinninger
  • Set of paving stones
    Patent number: D494685
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: August 17, 2004
    Assignee: Hans Rinninger u. Sohn GmbH & Co. Betonwarenfabrik
    Inventor: Hans Rinninger