Patents by Inventor William C. Foshee

William C. Foshee 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).

  • Coal liquor clarification with water-soluble, high molecular weight polymers having low concentration of cationic moieties
    Patent number: 4676913
    Abstract: Coal liquors are clarified by contacting them with high molecular weight copolymers of from about 70 to about 99 mole percent of a nonionic water-soluble monomer such as acrylamide and from 1 to 30 mole percent of a cationic monomer such as methacryloylethyl trimethyl ammonium chloride or methacrylamidopropyl trimethyl ammonium chloride.
    Type: Grant
    Filed: February 6, 1986
    Date of Patent: June 30, 1987
    Assignee: The Dow Chemical Company
    Inventors: James P. Easterly, Jr., William C. Foshee, Jack C. Lamphere