Patents Represented by Attorney Stephen R. Wright
  • Patent number: 3984311
    Abstract: An anionic co-catalyst system is provided for the oxidation of organic compounds in aqueous solutions. After the solution is acidified, a nitrate ion source and at least one of either a bromide or an iodide ion source are introduced into the solution which is heated in the presence of an oxidizing agent.
    Type: Grant
    Filed: October 5, 1972
    Date of Patent: October 5, 1976
    Assignee: The Dow Chemical Company
    Inventors: Ronald W. Diesen, John R. Moyer
  • Patent number: 3972820
    Abstract: Disclosed is a novel fire extinguishing composition comprising a heat and gas producing pyrotechnic composition comprising a binder and an oxidizer, and having dispersed therein a halogen containing fire extinguishing agent. The pyrotechnic, when ignited, thermally disseminates the fire extinguishing agent onto the fire.
    Type: Grant
    Filed: December 20, 1973
    Date of Patent: August 3, 1976
    Assignee: The Dow Chemical Company
    Inventors: Harold E. Filter, Don L. Stevens
  • Patent number: 3957529
    Abstract: A cleaning solvent useful in the cleaning of metal surfaces, e.g. nickle-iron alloys, contains sulfamic acid, citric acid, a solvent for hydrocarbon residues, and a surfactant. Metal surfaces are cleaned by contacting the surface with the cleaning solvent and then passivated by contact with aqueous solutions of citric acid or sodium nitrite or a combination of the two.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: May 18, 1976
    Assignee: The Dow Chemical Company
    Inventors: George B. Alexander, Norman F. Carpenter