Patents by Inventor Philippe Guerendel

Philippe Guerendel 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).

  • Patent number: 4874060
    Abstract: A sound wave receiving device associated with a probe lowered into a well at the end of a cable and applied against the wall of the well by opening anchorage arms. In the part of the probe in contact with the wall of the well there is disposed at least one receiver assembly comprising a sensor case connected by a resilient sheath and a sleeve, movable along a cylinder integral with the body, to the rod of a piston sliding in said cylinder. A hydraulic and/or pneumatic system is provided for placing the case in contact with the wall and increasing the force of application of said case.
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: October 17, 1989
    Assignee: Institut Francais du Petrole & Compagnie Generale de Geophysique
    Inventors: Philippe Guerendel, Charles Naville, Jean Laurent, Pascal Dedole