Patents by Inventor Claude Rajaonarivello

Claude Rajaonarivello 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).

  • Process and container for supplying supercritical CO.sub.2
    Patent number: 4977747
    Abstract: A cylinder (1) having a plunger tube (3) contains a mass of supercritical CO.sub.2 containing 7 to 8% dissolved hydrogen, surmounted by a gaseous sky constituted by hydrogen under a pressure higher than about 120 bars. Supercritical CO.sub.2 containing several percent of dissolved hydrogen can thus be obtained by merely opening the valve (5) of the cylinder. Used in the cosmetic industry.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: December 18, 1990
    Assignee: L'Air Liquide, Society Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Serge Frejaville, Philippe Mittelman, Claude Rajaonarivello, Jean-Michel Naud