Patents by Inventor Justin Mark Chalker

Justin Mark Chalker 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).

  • MATERIALS AND PROCESSES FOR RECOVERING PRECIOUS METALS
    Publication number: 20220205061
    Abstract: A process for recovering a precious metal from a precious metal containing article or composition is disclosed. The process comprises treating the precious metal containing article or composition with an oxidant composition under conditions to oxidise the precious metal in the precious metal containing article or composition to obtain a precious metal salt composition. The precious metal salt composition is then contacted with a sorbent under conditions to adsorb at least some of the precious metal salt to the sorbent to obtain a laden sorbent. At least some of the precious metal is then recovered from the laden sorbent. Alternatively, the precious metal is recovered from the precious metal salt composition by chemical reduction, electrochemical reduction and/or chemical precipitation.
    Type: Application
    Filed: March 31, 2020
    Publication date: June 30, 2022
    Applicant: CLEAN EARTH TECHNOLOGY PTY LTD
    Inventors: Justin Mark CHALKER, Maximilian MANN
  • Metal adsorbent material and uses thereof
    Patent number: 11167263
    Abstract: A polymeric polysulfide is disclosed. The polymeric polysulfide is formed by reacting a fatty acid composition comprising at least one unsaturated fatty acid or derivative thereof with sulfur, at a weight ratio between 9:1 and 1:9, under inverse vulcanisation conditions to produce a polymeric polysulfide wherein at least 50% of the fatty acids or derivatives thereof in the fatty acid composition are unsaturated.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: November 9, 2021
    Assignee: CLEAN EARTH TECHNOLOGY PTY LTD
    Inventors: Justin Mark Chalker, Max John Haldane Worthington
  • METAL ADSORBENT MATERIAL AND USES THEREOF
    Publication number: 20190282999
    Abstract: A polymeric polysulfide is disclosed. The polymeric polysulfide is formed by reacting a fatty acid composition comprising at least one unsaturated fatty acid or derivative thereof with sulfur, at a weight ratio between 9:1 and 1:9, under inverse vulcanisation conditions to produce a polymeric polysulfide wherein at least 50% of the fatty acids or derivatives thereof in the fatty acid composition are unsaturated.
    Type: Application
    Filed: April 20, 2017
    Publication date: September 19, 2019
    Inventors: JUSTIN MARK CHALKER, MAX JOHN HALDANE WORTHINGTON
  • OLEFIN METATHESIS REACTIONS OF AMINO ACIDS, PEPTIDES AND PROTEINS CONTAINING ALLYL SULFIDE GROUPS
    Publication number: 20120178913
    Abstract: A method for the modification of an amino acid, protein or peptide is disclosed. The method comprises reacting a carbon-carbon double bond-containing compound with an amino acid, a protein or a peptide containing an allyl sulfide group in the presence of a catalyst which promotes olefin metathesis, to form a modified amino acid, protein or peptide. Preferred carbon-carbon double bond-containing compounds include carbohydrates.
    Type: Application
    Filed: June 5, 2009
    Publication date: July 12, 2012
    Applicant: ISIS INNOVATION LIMITED
    Inventors: Yuya Angel Lin, Justin Mark Chalker, Benjamin Guy Davis