Patents Assigned to ARD Co., Pte. Ltd.
  • Three-way catalyst for treating exhaust gases
    Patent number: 5688740
    Abstract: A three-way conversion catalyst useful for the treatment of exhaust gas streams to accomplish the catalytic oxidation of carbon monoxide and hydrocarbons and the catalytic reduction of the oxides of nitrogen has a catalyst carrier such as cordierite coated with an oxygen reservoir layer, and a second layer of finely divided nickel needles obtained by reduction of Ni.sup.2+ in an autoclave and a platinum group metal.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: November 18, 1997
    Assignee: ARD Co., Pte. Ltd.
    Inventors: Andriy M. Bolshakov, Seow Boon Quek