Patents Assigned to Duochem, Inc.
  • Distributive anode coating
    Patent number: 4931156
    Abstract: Cathodic protection to prevent corrosion of embedded steel, e.g. reinforcing rods in concrete, is obtained by applying a graphite-alkyl methacrylate composition to the exterior of the concrete.
    Type: Grant
    Filed: April 19, 1984
    Date of Patent: June 5, 1990
    Assignee: Duochem, Inc.
    Inventors: James P. Dowd, Charles C. Boyer, Gary W. Gardner