Patents by Inventor Josef Guillaume Coenen

Josef Guillaume Coenen 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).

  • Publication number: 20060151211
    Abstract: A system for transmitting electric power into a bore hole, the system having an electric transmission line extending through the bore hole between an electric power source and a receiving station, wherein the receiving station includes frequency increasing means for increasing the frequency of the electric current supplied through the electric transmission line, voltage converter means for changing the voltage of the electric current supplied to it via the frequency increasing means, connecting means for supplying the frequency-increased electric current to the voltage converter means, and means for connecting an electric load to the receiving station.
    Type: Application
    Filed: December 13, 2005
    Publication date: July 13, 2006
    Inventors: Josef Guillaume Coenen, Ivan Tan Boon Kiat
  • Publication number: 20050241382
    Abstract: A system is provided for detecting the presence of formation gas in a stream of drilling fluid flowing through a wellbore during drilling of the wellbore. The system has at least one sensor chamber connectable to a drill string for drilling the wellbore, each sensor chamber containing a volume of a selected gas and having a membrane wall which allows passage of formation gas from the stream of drilling fluid into the sensor chamber. The sensor is arranged to detect a change of a selected characteristic of the volume of gas due to passage of formation gas from the stream of drilling fluid via the membrane wall into the sensor chamber.
    Type: Application
    Filed: June 17, 2003
    Publication date: November 3, 2005
    Inventor: Josef Guillaume Coenen
  • Publication number: 20050161261
    Abstract: A steerable soil penetration system having a steerable penetration head, which compacts and does not cut away the surrounding soil and which is connected to an elongate flexible tubing such that the orientation of the penetration head can be varied relative to the tubing. The elongate tubing and/or a downhole hammer or tractor pushes the penetration head through the subsurface formation. Preferably the tubing is surrounded by a narrow annulus so that buckling of the tubing is inhibited and the tubing protects the pierced hole against caving in.
    Type: Application
    Filed: March 7, 2003
    Publication date: July 28, 2005
    Inventors: Michael Betts, Josef Guillaume Coenen, Pieter Kapteijn, Peter Oosterling, Paul Schilte, Pleun Van Der Sman, Gustaaf Van Wechem