Patents by Inventor Jacques Gadioux

Jacques Gadioux 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).

  • Scleroglucan gel applied to the oil industry
    Patent number: 5555936
    Abstract: The permeability of a subterranean reservoir can be more easily controlled by first injecting a crosslinking agent solution and then subsequently injecting a scleroglucan solution to thereby form, in situ, crosslinked scleroglucan gel. This reverse order of injection allows for a more homogeneous gel propagation without substantial risk of plugging.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: September 17, 1996
    Assignee: Societe Nationale Elf Aquitaine
    Inventors: Rosangela Pirri, Jacques Gadioux, Richard Riveno
  • Concentrated liquid solutions of scleroglucan
    Patent number: 5215681
    Abstract: The invention relates to new concentrated liquid solutions of polysaccharides, characterized in that they are prepared by ultrafiltration of a dilute solution of polymer to which a surface-active agent has been added.The solutions can be employed, after dilution, in particular as a thickening agent for aqueous fluids.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: June 1, 1993
    Assignee: Societe Nationale Elf Aquitaine
    Inventors: Dinh N. Truong, Jacques Gadioux, Dominique Sarazin