Patents by Inventor John Ernest Fittock

John Ernest Fittock 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).

  • Reductive ammoniacal leaching of nickel and cobalt bearing materials
    Patent number: 7601314
    Abstract: A process for the recovery of nickel and/or cobalt from an impure nickel, cobalt or mixed nickel/cobalt material including the steps of: a) providing a nickel, cobalt or mixed nickel/cobalt material; and b) contacting the nickel, cobalt or mixed nickel/cobalt material with a feed ammoniacal ammonium carbonate solution and a reductant in a leach step.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: October 13, 2009
    Assignee: BHP Billiton SSM Technology Pty Ltd
    Inventors: Peter Allan Anderson, Mark Fisher, John Ernest Fittock, Victoria Margaret Hultgren, Erin Maree Jones, Robert Bruce Messenger, Adam Sean Moroney
  • Cobalt encapsulated nickel hydroxides and basic carbonates for battery electrodes
    Patent number: 7267874
    Abstract: A process for producing a cobalt III encapsulated nickel hydroxide or basic nickel carbonate product including the steps of: (i) providing an ammoniacal solution including cobalt ammine complexes and nickel II ammine complexes; (ii) progressively lowering the ammonia content to sequentially precipate the nickel as an hydroxide or basic carbonate; and (iii) further lowering the ammonia content to precipitate the majority of the cobalt as cobalt III oxide hydroxide; wherein the majority of cobalt III oxide hydroxide coats on the surface of the precipitate nickel hydroxide or basic nickel carbonate to form a coated particle.
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: September 11, 2007
    Assignee: QNI Technology Pty. Ltd.
    Inventors: John Ernest Fittock, Cheryl Christine Lucas, Katherine Fiona Howison
  • Cobalt encapseated nickel hydroxides and basic carbonates for battery electrodes
    Publication number: 20040091414
    Abstract: A process for producing a cobalt III encapsulated nickel hydroxide or basic nickel carbonate product including the steps of:
    Type: Application
    Filed: August 7, 2003
    Publication date: May 13, 2004
    Inventors: John Ernest Fittock, Cheryl Christine Lucas, Katherine Fiona Howison