Patents by Inventor Wayne N. Marchant

Wayne N. Marchant 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).

  • Resin for sorption of tungsten
    Patent number: 4180628
    Abstract: A resin for sorption of tungsten is prepared by copolymerization of 8-hydroxyquinoline, a polyamine, resorcinol and formaldehyde. The resin finds particular utility for recovery of tungsten from alkaline brines.
    Type: Grant
    Filed: July 18, 1978
    Date of Patent: December 25, 1979
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Wayne N. Marchant, Parkman T. Brooks
  • Method for removing soluble selenium from acidic waste water
    Patent number: 3933635
    Abstract: Selenium is removed from solution in acidic waste water by treatment of the water with a metallic reducing agent. The invention is particularly effective for removal of selenium from zinc smelter effluent by reaction of the effluent with powdered zinc.
    Type: Grant
    Filed: July 15, 1975
    Date of Patent: January 20, 1976
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventor: Wayne N. Marchant