Patents by Inventor Gillian Stanger

Gillian Stanger 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).

  • Precious metal refining with fluorine gas
    Patent number: 5076839
    Abstract: Feed mixtures containing one or more platinum group metals are fluorinated to form at least one volatile fluoride product which is separated from the residual solid. Separations of different fluorides may be effected by collecting different fractions of volatile fluorides. Palladium does not form a volatile fluoride and is retained in the residual solid.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: December 31, 1991
    Assignee: Johnson Matthey Public Limited Company
    Inventors: David A. Boyd, John H. Holloway, Gillian Stanger