Patents by Inventor Martin Hahn

Martin Hahn 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).

  • Roof tile design and construction
    Patent number: 5974756
    Abstract: A concrete or other roofing tile is provided which simulates wood shake roofing, and which may be used in either a direct deck or batten configuration. The simulated wood shake configuration includes an angled cut portion by means of a butt treatment, and also includes the use of an elongate medial slot which has a rectangular configuration.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: November 2, 1999
    Assignee: Boral Industries, Inc.
    Inventors: Alfonso V. Alvarez, Woods W. Burnett, Eric Martin Hahn, Walter Arthur Schreifels, Joseph Edward Smith, Patrick Gene Sullivan
  • Roof tile
    Patent number: D411316
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: June 22, 1999
    Assignee: Boral Lifetile, Inc.
    Inventors: Alfonso V. Alvarez, Woods W. Burnett, Eric Martin Hahn, Walter Arthur Schreifels, Joseph Edward Smith, Patrick Gene Sullivan