Patents by Inventor Tamsin Lisa Williams

Tamsin Lisa Williams 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).

  • Heap leaching of sulphide ores
    Patent number: 8119085
    Abstract: A process for the heap leaching of multiple ores, the process characterized by the process steps of: (i) the agglomeration or wetting of an ore feed; (ii) exposing the agglomerated or wetted ore to an inoculum containing one or more bacterial species capable of biooxidizing sulphide minerals in that ore; (iii) forming one or more heaps from the ore of step (ii); (iv) dispersing further bacterial inoculum over at least a portion of the or each heap; and (v) recovering leach solution draining from the heap and passing a portion thereof to a means for metal recovery.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: February 21, 2012
    Assignee: Bioheap Limited
    Inventors: Colin John Hunter, Tamsin Lisa Williams
  • HEAP LEACHING OF SULPHIDE ORES
    Publication number: 20090061503
    Abstract: A process for the heap leaching of multiple ores, the process characterized by the process steps of: (i) the agglomeration or wetting of an ore feed; (ii) exposing the agglomerated or wetted ore to an inoculum containing one or more bacterial species capable of biooxidizing sulphide minerals in that ore; (iii) forming one or more heaps from the ore of step (ii); (iv) dispersing further bacterial inoculum over at least a portion of the or each heap; and (v) recovering leach solution draining from the heap and passing a portion thereof to a means for metal recovery.
    Type: Application
    Filed: March 17, 2006
    Publication date: March 5, 2009
    Applicant: BIOHEAP LIMITED
    Inventors: Colin John Hunter, Tamsin Lisa Williams
  • Bacterial oxidation of sulphide ores and concentrates
    Patent number: 7189527
    Abstract: A process for bacterial oxidation of sulphide ores and concentrates in which the ore or concentrate is leached with a bacterial culture containing one or more strains of both Sulfobacillus and Thermoplasma.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: March 13, 2007
    Assignee: Bioheap Limited
    Inventors: Colin John Hunter, Tamsin Lisa Williams, Simon Anthony Roger Purkiss, Leo Wai-Chiu Cheung, Elena Connors, Ross David Gilders
  • Adaptation of bacteria for use in leaching
    Publication number: 20040241827
    Abstract: A method for the adaptation of bacteria for use in the leaching of ores and concentrates, including the steps of: a) obtaining samples of bacteria exhibiting one or more desired attributes; and b) combining bacterial samples from step a) with a stock bacterial culture known to have the ability to oxidise sulphide minerals, whereby the resulting combined bacterial culture ultimately expresses both the one or more desired attributes and the ability to oxidise sulphide minerals. The particular desired attribute is preferably salt tolerance.
    Type: Application
    Filed: July 8, 2004
    Publication date: December 2, 2004
    Inventors: Colin John Hunter, Tamsin Lisa Williams
  • Bacterial oxidation of sulphide ores and concentrates
    Publication number: 20040206208
    Abstract: A process for bacterial oxidation of sulphide ores and concentrates in which the ore or concentrate is leached with a bacterial culture containing one or more strains of both Sulfobacillus and Thermoplasma.
    Type: Application
    Filed: December 15, 2003
    Publication date: October 21, 2004
    Applicant: Pacific Ore Technology (Australia) Ltd.
    Inventors: Colin John Hunter, Tamsin Lisa Williams, Simon Anthony Roger Purkiss, Leo Wai-Chiu Cheung, Elena Connors, Ross David Gilder