Patents by Inventor William R. Van Ulzen

William R. Van Ulzen 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).

  • Collapsible trimaran boat
    Patent number: 4337543
    Abstract: A trimaran type boat having center, port, and starboard elongated floats which are hinged together at corresponding juxtaposed side edges to enable the port and starboard floats to be pivoted between an operatable position in which the floats are transversely oriented to accommodate flotation of the boat and a collapsed position in which the port and starboard floats are folded into the center float to reduce the overall width of the boat without appreciably increasing the height so as to facilitate its storage and transport.
    Type: Grant
    Filed: October 23, 1980
    Date of Patent: July 6, 1982
    Inventor: William R. Van Ulzen