Patents by Inventor Helmut Kirner

Helmut Kirner 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).

  • Assembly for fastening a fin to a sailboard
    Patent number: 5176096
    Abstract: The assembly for fastening a fin to a sailboard comprises a fin receiving box secured in the sailboard and having an opening to receive a fin shaft. A conical or wedge seat is provided between the fin shaft and the opening in order to warrant a firm attachment of the fin.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: January 5, 1993
    Assignee: F2 International Ges.m.b.H.
    Inventors: Ferenc Molnar, Helmut Kirner
  • Shaft portion of a skeg for a surf sailing board
    Patent number: D330748
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: November 3, 1992
    Assignee: F2 International GES.m.b.H.
    Inventors: Ferenc Molnar, Helmut Kirner