Patents by Inventor Jean F. M. Pepin-Lehalleur

Jean F. M. Pepin-Lehalleur 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).

  • Non-rigid marine platform with surface wellheads
    Patent number: 4895481
    Abstract: A platform consisting of a rigid structure supporting the deck, floats fixed to the lower part of the rigid structure, and flexible structure formed of piles fixed by their upper ends to the rigid structure and to the floats and by their lower ends to a base provided on the seabed, the piles being held under tension.
    Type: Grant
    Filed: January 20, 1988
    Date of Patent: January 23, 1990
    Assignee: Doris Engineering
    Inventors: Jean F. M. Pepin-Lehalleur, Lo c M. J. Danguy des Deserts