Patents by Inventor Phillippe A. R. Dumas

Phillippe A. R. Dumas 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).

  • Gravity base structure for an offshore platform in arctic regions
    Patent number: 5044830
    Abstract: A gravity base structure for an offshore platform having deck supporting columns extending from seabed to above seawater level includes bottom and top slabs having inner and outer protective walls extending between them with a lattice structure for transmitting impact energy from the outer wall to the inner wall. The deck supporting columns are substantialy free of means for transmitting impact energy from the inner and outer protective walls to them.
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: September 3, 1991
    Assignee: Doris Engineering
    Inventors: Gerard A. A. Barbaras, Jean Pages, Phillippe A. R. Dumas