Patents by Inventor Frederik H. van den Broek

Frederik H. van den Broek 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).

  • Dismantleable boat cradle
    Patent number: 4392627
    Abstract: Dismantleable boat cradle comprising a frame which forms a closed rectangle and is constructed from profile sections with non-circular cross-section which are connected with each other at the corner points by couplings, which are built up from three tube sections which are mutually perpendicular to each other and which accomodate two frame sections and an upright, of which at least one is open at both ends, said uprights having an adjustable height and carrying support heads.
    Type: Grant
    Filed: October 24, 1980
    Date of Patent: July 12, 1983
    Inventor: Frederik H. van den Broek