Patents by Inventor Marcus Van Der Laan

Marcus Van Der Laan 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).

  • Design for tugboat
    Patent number: 6698374
    Abstract: The invention relates to a tugboat. The design comprises a towing installation which can turn through 360° in the horizontal plane about a vertical shaft. Above the towing installation there is a pilot house, and beneath it there are one or more propellers. This design provides optimal thrust in all directions in line with the rowing cable, in combination with good resistance and swell properties.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: March 2, 2004
    Assignee: Novatug B.V.
    Inventor: Marcus Van Der Laan