Patents by Inventor Francois Garreau

Francois Garreau 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).

  • Catalyst supports/catalysts for the treatment of vehicular exhaust gases
    Patent number: 4985387
    Abstract: Thermally stable, sulfur-resistant catalysts for the conversion of exhaust gases from internal combustion engines includes an inert, rigid support substrate, e.g., a cellular monolith, coated with a layer of porouse material, the porous material containing alumina, at least one rare earth oxide, and a spinel type compound having a specific surface of at least 50 m.sup.2 /g, and the support substrate having an effective amount of a catalytically active phase impregnated onto the porous coating thereof.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: January 15, 1991
    Assignee: Pro-Catalyse
    Inventors: Michel Prigent, Gilbert Blanchard, Francois Garreau, Philippe Courty
  • Catalyst for the conversion of vehicular exhaust gases and process for preparing the catalyst
    Patent number: 4931419
    Abstract: Improvedly time-stable catalysts adopted for the treatment of internal combustion engine exhaust gases include a monolithic catalyst support impregnated with a plurality of catalytically active phases, one section of the support being impregnated with a first catalytically active phase and remaining section of the support being impregnated with a second catalytically active phase.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: June 5, 1990
    Assignee: Pro-Catalyse
    Inventors: Gilbert Blanchard, Francois Garreau, Michel Prigent, Richard Dozieres
  • Catalyst supports and process for their preparation
    Patent number: 4891350
    Abstract: Monolithic catalyst substrates are more adherently coated with at least one oxide layer, by including in the coating composition a gum or biogum, preferably xanthan gum.
    Type: Grant
    Filed: October 27, 1987
    Date of Patent: January 2, 1990
    Assignee: Rhone-Poulenc Chimie
    Inventors: Thierry Chopin, Francois Garreau, Magali Knipper, Patrice Nortier, Jean-Luc Schuppiser