Patents by Inventor Lisa Anne Smith

Lisa Anne Smith 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).

  • Treatment process for recovery and separation of elements from liquors
    Patent number: 10011889
    Abstract: This invention provides a hydrometallurgical process for extracting one or more saleable products from a sulphate or chloride pregnant leach solution (PLS), or both. The products may be any one or more of the products selected from the group consisting of: precious metals including platinum group metals (PGMs), gold and silver, base metals, and rare metal elements, and metal cathodes, powders, salts or precipitates thereof; sulphur; hydrochloric acid (HCl); calcium; and silica.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: July 3, 2018
    Assignee: LIFEZONE LIMITED
    Inventors: Keith Stuart Liddell, Lisa Anne Smith, Michael David Adams
  • Treatment process for extraction of precious, base and rare elements
    Patent number: 9982320
    Abstract: This invention describes a hydrometallurgical process for the recovery and separation of valuable elements, in particular gold and silver, from a feed material comprising a refractory, intractable or otherwise poorly responding to conventional treatment routes ores, concentrates and other materials. In particular, the process is a process integrated into one or more existing value element extraction processes.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: May 29, 2018
    Assignee: LIFEZONE LIMITED
    Inventors: Keith Stuart Liddell, Lisa Anne Smith, Michael David Adams
  • TREATMENT PROCESS FOR RECOVERY AND SEPARATION OF ELEMENTS FROM LIQUORS
    Publication number: 20160145715
    Abstract: This invention provides a hydrometallurgical process for extracting one or more saleable products from a sulphate or chloride pregnant leach solution (PLS), or both. The products may be any one or more of the products selected from the group consisting of: precious metals including platinum group metals (PGMs), gold and silver, base metals, and rare metal elements, and metal cathodes, powders, salts or precipitates thereof; sulphur; hydrochloric acid (HCl); calcium; and silica.
    Type: Application
    Filed: November 24, 2015
    Publication date: May 26, 2016
    Inventors: Keith Stuart Liddell, Lisa Anne Smith, Michael David ADAMS
  • TREATMENT PROCESS FOR EXTRACTION OF PRECIOUS, BASE AND RARE ELEMENTS
    Publication number: 20160145714
    Abstract: This invention describes a hydrometallurgical process for the recovery and separation of valuable elements, in particular gold and silver, from a feed material comprising a refractory, intractable or otherwise poorly responding to conventional treatment routes ores, concentrates and other materials. In particular, the process is a process integrated into one or more existing value element extraction processes.
    Type: Application
    Filed: November 24, 2015
    Publication date: May 26, 2016
    Inventors: Keith Stuart Liddell, Lisa Anne Smith, Michael David ADAMS