Patents by Inventor William A. Mannion

William A. Mannion 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).

  • Polyfunctional catalysts and method of use
    Patent number: 4552733
    Abstract: This invention provides polyfunctional catalysts comprising a composite of platinum and one or more of rhodium, ruthenium and iridium, a substantially larger quantity of one or more base metal oxides in which the metal is selected from the group consisting of metals having an atomic number from 25 to 28 and rhenium, and an alumina support, which composite is made and then deposited on a suitable carrier. In a preferred embodiment, the catalysts contain 1-20 weight percent of said base metal oxide, typically nickel oxide; 0.05-0.5 weight percent platinum; and 0.002-0.3 weight percent rhodium, and an alumina support deposited on a monolith or other carrier. The improved catalysts are especially applicable for purifying exhaust gases from combustion processes, and in particular those from internal combustion engines.
    Type: Grant
    Filed: December 18, 1984
    Date of Patent: November 12, 1985
    Assignee: Engelhard Corporation
    Inventors: Charles E. Thompson, John J. Mooney, Carl D. Keith, William A. Mannion
  • Polyfunctional catalysts
    Patent number: 4157316
    Abstract: This invention provides polyfunctional catalysts comprising a composite of platinum and one or more of rhodium, ruthenium and iridium, a substantially larger quantity of one or more base metal oxides in which the metal is selected from the group consisting of metals having an atomic number from 25 to 28 and rhenium, and an alumina support, which composite is made and then deposited on a suitable carrier. In a preferred embodiment, the catalysts contain 1-20 weight percent of said base metal oxide, typically nickel oxide; 0.05-0.5 weight percent platinum; and 0.002-0.3 weight percent rhodium, and an alumina support deposited on a monolith or other carrier. The improved catalysts are especially applicable for purifying exhaust gases from combustion processes, and in particular those from internal combustion engines.
    Type: Grant
    Filed: September 16, 1977
    Date of Patent: June 5, 1979
    Assignee: Engelhard Minerals & Chemicals Corporation
    Inventors: Charles E. Thompson, John J. Mooney, Carl D. Keith, William A. Mannion