Patents by Inventor Jean-Yves Chane-Ching

Jean-Yves Chane-Ching 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).

  • Production of stannous salts
    Patent number: 4822580
    Abstract: Stannous salts of a non-oxidizing anionic acid, e.g., stannous fluoborate or stannous sulfate, are prepared by reacting metallic tin with a preferably aqueous solution of such acid in the presence of a catalytically effective amount of finely divided catalyst particles, e.g., comprised of a precious metal, said catalyst particles providing hydrogen release at low overvoltages.
    Type: Grant
    Filed: April 5, 1988
    Date of Patent: April 18, 1989
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Jean-Yves Chane-Ching, Jean-Yves Dumousseau
  • Process for producing cerium oxide particulates
    Patent number: 4663137
    Abstract: Morphologically improved cerium oxide particulates useful, e.g., as catalysts/catalyst supports, and having a B.E.T. specific surface of at least 85.+-.5 m.sup.2 /g, measured at a temperature ranging from 350.degree. C. to 450.degree. C., are prepared by hydrolyzing an aqueous solution of a cerium (IV) salt in an acidic medium, filtering the precipitate of hydrolysis which results, washing and optionally drying said precipitate, and then calcining same.
    Type: Grant
    Filed: February 20, 1985
    Date of Patent: May 5, 1987
    Assignee: Rhone-Poulenc Specialties Chimiques
    Inventors: Jean-Yves Chane-Ching, Jean-Yves Dumousseau
  • Process for the preparation of cerium oxide particulates
    Patent number: 4661330
    Abstract: Morphologically improved cerium oxide particulates having low sulfur content, useful, e.g., as catalysts/catalyst supports, and having a B.E.T. specific surface of at least 85.+-.5 m.sup.2 /g, measured at a temperature ranging from 350.degree. C. to 500.degree. C., are prepared by reacting an aqueous solution of cerium (IV) salt with an aqueous solution of sulfate ions to precipitate a basic ceric sulfate, filtering the precipitate which results, washing and optionally drying said precipitate, and then calcining same.
    Type: Grant
    Filed: February 20, 1985
    Date of Patent: April 28, 1987
    Assignee: Rhone-Poulenc Specialties Chimiques
    Inventors: Jean-Yves Chane-Ching, Jean-Yves Dumousseau