Patents by Inventor William Orlando Sinclair Doherty

William Orlando Sinclair Doherty 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).

  • Methods for converting lignocellulosic material to useful products
    Patent number: 9447539
    Abstract: The present invention provides compositions and methods for the pretreatment of lignocellulosic material. The present invention further provides for pretreated lignocellulosic material that can be used to produce useful products, such as fermentable sugars.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: September 20, 2016
    Assignee: Syngenta Participations AG
    Inventors: Zhanying Zhang, Ian Mark O'Hara, William Orlando Sinclair Doherty
  • Fractionation of a lignocellulosic material
    Patent number: 8999067
    Abstract: A method for fractionating a lignocellulosic material, the method comprising; contacting (2) the lignocellulosic material with an ionic liquid (3) and dissolving the lignocellulosic material therein, providing a second liquid (7) which is immiscible with the ionic liquid and is also a non-solvent for cellulose, adding the second liquid to the ionic liquid so as to form a biphasic system (6) which comprises an ionic liquid phase essentially free of lignocellulose and a second liquid phase comprising lignin in solution and cellulose as a precipitate, separating the two phases and recovering (8) the precipitated cellulose from the separated second liquid phase.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: April 7, 2015
    Assignee: Queensland University of Technology
    Inventors: Leslie Alan Edye, William Orlando Sinclair Doherty
  • METHODS FOR CONVERTING LIGNOCELLULOSIC MATERIALS TO USEFUL PRODUCTS
    Publication number: 20140093918
    Abstract: The present invention provides compositions and methods for the pretreatment of lignocellulosic material. The present invention further provides for pretreated lignocellulosic material that can be used to produce useful products, such as fermentable sugars.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 3, 2014
    Applicants: Queensland University of Technology, Syngenta Participations AG
    Inventors: Zhanying Zhang, Ian Mark O'Hara, William Orlando Sinclair Doherty, Darryn Rackemann
  • METHODS FOR CONVERTING LIGNOCELLULOSIC MATERIAL TO USEFUL PRODUCTS
    Publication number: 20140093917
    Abstract: The present invention provides compositions and methods for the pretreatment of lignocellulosic material. The present invention further provides for pretreated lignocellulosic material that can be used to produce useful products, such as fermentable sugars.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 3, 2014
    Applicants: Queensland University of Technology, Syngenta Participations AG
    Inventors: Zhanying Zhang, Ian Mark O'Hara, William Orlando Sinclair Doherty
  • METHODS FOR TREATING LIGNOCELLULOSIC MATERIALS
    Publication number: 20140093920
    Abstract: The present invention provides compositions and methods for the pretreatment of lignocellulosic material. The present invention further provides for pretreated lignocellulosic material that can be used to produce products, such as fermentable sugars.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 3, 2014
    Applicants: Queensland University of Technology, Syngenta Participations AG
    Inventors: Zhanying Zhang, Ian Mark O'Hara, William Orlando Sinclair Doherty
  • FRACTIONATION OF A LIGNOCELLULOSIC MATERIAL
    Publication number: 20100196967
    Abstract: A method for fractionating a lignocellulosic material, the method comprising; contacting (2) the lignocellulosic material with an ionic liquid (3) and dissolving the lignocellulosic material therein, providing a second liquid (7) which is immiscible with the ionic liquid and is also a non-solvent for cellulose, adding the second liquid to the ionic liquid so as to form a biphasic system (6) which comprises an ionic liquid phase essentially free of lignocellulose and a second liquid phase comprising lignin in solution and cellulose as a precipitate, separating the two phases and recovering (8) the precipitated cellulose from the separated second liquid phase.
    Type: Application
    Filed: February 7, 2008
    Publication date: August 5, 2010
    Inventors: Leslie Alan Edye, William Orlando Sinclair Doherty
  • Method for Treating a Paper Product
    Publication number: 20100166968
    Abstract: A method is provided for treating a paper product, the method comprising; providing a mixture comprising lignin in an aqueous solution at a concentration and pH such that substantially all the lignin is solubilised; treating the paper product with a cationic polymer followed by treating the paper product with the lignin mixture.
    Type: Application
    Filed: July 11, 2008
    Publication date: July 1, 2010
    Applicant: SUGAR INDUSTRY INNOVATION PTY LTD
    Inventors: William Orlando Sinclair Doherty, Peter Halley, Dylan Cronin, Leslie Alan Edye