Patents by Inventor Marc-Jacques Ledoux

Marc-Jacques Ledoux 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).

  • Catalysts for the hydrotreatment of hydrocarbons and their preparation
    Patent number: 4581344
    Abstract: The present invention relates to new catalysts for the hydrotreatment of hydrocarbons, their preparation and their application.The catalyst for the hydrotreatment of hydrocarbons, according to the present invention, incorporates a refractory inorganic support combined with an active phase comprising a layer of uranium oxide and at least one oxide of a Group VIII metal. The active phase comprises a layer of uranium oxide fixed with a homogenous distribution on the said support through the intermediacy of direct --O-- bonds resulting from an impregnation of the support with the aid of an ethanolic solution of uranyl acetylacetonate.
    Type: Grant
    Filed: July 17, 1984
    Date of Patent: April 8, 1986
    Assignee: Centre National de la Recherche Scientifique (C.N.R.S.)
    Inventors: Marc-Jacques Ledoux, Gilbert Maire, Ramdane Benazouz, Giorgio Agostini