Patents by Inventor Kaiyan Liu

Kaiyan Liu 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).

  • Microbial deactivation of explosive compositions
    Patent number: 9814918
    Abstract: A method of deactivating an explosive composition being used in a blasting operation, which method comprises exposing the explosive composition to a micro-organism that is indigenous to the environment in which the explosive composition is being used and that is capable of producing an enzyme that degrades the explosive composition, wherein the explosive composition has associated with it a chemical inducing agent that promotes production of the enzyme by the micro-organism.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: November 14, 2017
    Assignee: ORICA INTERNATIONAL PTE LTD
    Inventors: Clint Brearley, Steven Kotsonis, Kaiyan Liu, Thomas Smylie, Richard Goodridge
  • Enzymes for degrading organophosphates
    Patent number: 9796990
    Abstract: The present invention relates to enzymes capable of hydrolysing organophosphate (OP) molecules. In particular, the invention relates to variants of the OpdA enzyme from Agrobacterium that display improved activity when compared to the naturally occurring OpdA. The invention is also towards polypeptides that have organophosphate hydrolysing activity for the organophosphates chlorpyrifos methyl, diazinon and parathion ethyl.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: October 24, 2017
    Assignee: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANIZATION
    Inventors: Colin Scott, John Oakeshott, Robyn Russell, Nigel French, Steven Kotsonis, Kaiyan Liu
  • MICROBIAL DEACTIVATION OF EXPLOSIVE COMPOSITIONS
    Publication number: 20140377844
    Abstract: A method of deactivating an explosive composition being used in a blasting operation, which method comprises exposing the explosive composition to a micro-organism that is indigenous to the environment in which the explosive composition is being used and that is capable of producing an enzyme that degrades the explosive composition, wherein the explosive composition has associated with it a chemical inducing agent that promotes production of the enzyme by the micro-organism.
    Type: Application
    Filed: January 29, 2013
    Publication date: December 25, 2014
    Inventors: Clint Brearley, Steven Kotsonis, Kaiyan Liu, Thomas Smylie, Richard Goodridge
  • ENZYMES FOR DEGRADING ORGANOPHOSPHATES
    Publication number: 20140342387
    Abstract: The present invention relates to enzymes capable of hydrolysing organophosphate (OP) molecules. In particular, the invention relates to variants of the OpdA enzyme from Agrobacterium that display improved activity when compared to the naturally occurring OpdA. The invention is also towards polypeptides that have organophosphate hydrolysing activity for the organophosphates chlorpyrifos methyl, diazinon and parathion ethyl.
    Type: Application
    Filed: July 20, 2012
    Publication date: November 20, 2014
    Applicant: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Colin Scott, John Oakeshott, Robyn Russell, Nigel French, Steven Kotsonis, Kaiyan Liu