Patents by Inventor Richard Riveno

Richard Riveno 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