Patents by Inventor Wouter Van Eek, deceased

Wouter Van Eek, deceased 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).

  • Apparatus for extracting minerals through a borehole
    Patent number: 4278137
    Abstract: An apparatus consisting of pipe sections pivotally joined which can be insert in a borehole when in straight position and manipulated to a zigzag position to loosen minerals outside the wall of the borehole.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: July 14, 1981
    Assignee: Stamicarbon, B.V.
    Inventor: Wouter Van Eek, deceased