Patents by Inventor John Roger Bawden Gilbert

John Roger Bawden Gilbert 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).

  • Electrowinning metals
    Patent number: 4039403
    Abstract: A method of electrowinning metals in which the anode comprises a foraminate container containing particulate material chosen from the group electrically conducting non-polarizing compound of a metal and a non-metallic element.
    Type: Grant
    Filed: February 26, 1976
    Date of Patent: August 2, 1977
    Assignees: Imperial Metal Industries (Kynoch) Limited, IMI Refinery Holdings Limited
    Inventors: David John Astley, John Roger Bawden Gilbert, Ian Robert Scholes, Jan Stephan Jacobi, Garth Royston Brookes
  • Method of and anodes for use in electrowinning metals
    Patent number: 3957600
    Abstract: Anodes of alloys, which may be fragmented and used in baskets, of passive film-forming metals and elements having atomic numbers 23-29 for use in electrowinning metals, methods of using such anodes, and electrowinning cells incorporating such anodes.
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: May 18, 1976
    Assignees: IMI Refinery Holdings Limited, Imperial Metal Industries (Kynoch) Limited
    Inventors: Andrew George Ives, John Roger Bawden Gilbert, Jan Stephan Jacobi, Ian Robert Scholes, David John Astley