Patents by Inventor Brian Stanley Hawkett

Brian Stanley Hawkett 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).

  • Publication number: 20220177659
    Abstract: The present invention relates to a method which uses non-core-shell polymer particles to form polymer film on a pre-formed solid substrate surface, said non-core-shell polymer particles comprising two covalently coupled polymer regions of different molecular composition, wherein (a) one of the two polymer regions is a crosslinked RAFT polymer region and the other polymer region is a film forming polymer region, (b) the crosslinked RAFT polymer region comprising particle aggregation prevention means selected from one or more of charged and steric stabilising functionality, and (c) the film forming polymer region comprising 0-3 wt. % of charged polymerised monomer residues relative to the total amount of polymerised monomer residues present in that region.
    Type: Application
    Filed: March 31, 2020
    Publication date: June 9, 2022
    Inventors: Brian Stanley Hawkett, Duc Ngoc Nguyen, Chiara Neto, The Vien Huynh, Timothy Warren Davey
  • Publication number: 20220059846
    Abstract: The present specification relates to a battery, comprising an anode, a cathode, an electrolyte disposed between the anode and the cathode, a halogen in contact with the cathode, and a metal in contact with the anode, wherein the halogen is in contact with a polymeric halogen sequestering agent (HSA) which is a polymer comprising a moiety capable of sequestering the halogen.
    Type: Application
    Filed: September 12, 2019
    Publication date: February 24, 2022
    Inventors: THOMAS MASCHMEYER, NATHAN COAD, THOMAS ELLIS, SHUFENG ZHAO, BRIAN STANLEY HAWKETT, DUC NGOC NGUYEN, THE VIEN HUYNH
  • Publication number: 20220023446
    Abstract: Disclosed herein are pharmacologically acceptable magnetic nanoparticles suitable for administration to a subject.
    Type: Application
    Filed: October 8, 2021
    Publication date: January 27, 2022
    Inventors: Stewart Gavin BARTLETT, Melanie Ruth Maria NELSON, Benjamin THIERRY, Aidan COUSINS, Thi Hanh Nguyen PHAM, Brian Stanley HAWKETT
  • Patent number: 11203555
    Abstract: The present invention provides a method of stabilizing a nitrate-based explosive through the use of a NOx scavenger. The present invention further provides a blasting agent including ammonium nitrate and a NOx scavenger. The present invention further provides for a method of blasting adapted for use in reactive and/or elevated temperature ground.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: December 21, 2021
    Inventors: James Kenneth Beattie, Alex Masato Djerdjev, Brian Stanley Hawkett, Chiara Neto, Pramith Priyananda
  • Publication number: 20200275650
    Abstract: The present invention relates to novel polymer coated chlorothalonil particles, processes for their preparation, agricultural compositions containing them and to methods of using them for controlling or preventing infestation of useful plants by phytopathogenic microorganisms.
    Type: Application
    Filed: October 31, 2018
    Publication date: September 3, 2020
    Inventors: James Burns, Tim Powell, Alexander Mark Heming, Brian Stanley Hawkett, Ngoc Duc Nguyen, The Vien Huynh
  • Publication number: 20190365901
    Abstract: The present invention relates generally to a method of treating a neoplastic condition and to agents useful for same. More particularly, the present invention is directed to a method of facilitating the treatment of a solid tumour in a localised manner via the co-administration of particulate material and a cellular toxin. The method of the present invention is useful in a range of therapeutic treatments including the treatment of primary and metastatic tumours.
    Type: Application
    Filed: July 30, 2019
    Publication date: December 5, 2019
    Inventors: Brian Stanley Hawkett, Trevor William Hambley, Nicole Sarah Bryce, Thi Thuy Binh Pham, Nirmesh Jain
  • Patent number: 10376589
    Abstract: The present invention relates generally to a method of treating a neoplastic condition and to agents useful for same. More particularly, the present invention is directed to a method of facilitating the treatment of a solid tumor in a localized manner via the co-administration of particulate material and a cellular toxin. The method of the present invention is useful in a range of therapeutic treatments including the treatment of primary and metastatic tumors.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: August 13, 2019
    Assignee: The University of Sydney
    Inventors: Brian Stanley Hawkett, Trevor William Hambley, Nicole Sarah Bryce, Thi Thuy Binh Pham, Nirmesh Jain
  • Publication number: 20180244590
    Abstract: The present invention provides a method of stabilizing a nitrate-based explosive through the use of a NOx scavenger. The present invention further provides a blasting agent including ammonium nitrate and a NOx scavenger. The present invention further provides for a method of blasting adapted for use in reactive and/or elevated temperature ground.
    Type: Application
    Filed: September 1, 2016
    Publication date: August 30, 2018
    Applicant: The University of Sydney
    Inventors: James Kenneth Beattie, Alex Masato Djerdjev, Brian Stanley Hawkett, Chiara Neto, Pramith Priyananda
  • Publication number: 20180117160
    Abstract: The present invention relates generally to a method of treating a neoplastic condition and to agents useful for same. More particularly, the present invention is directed to a method of facilitating the treatment of a solid tumour in a localised manner via the co-administration of particulate material and a cellular toxin. The method of the present invention is useful in a range of therapeutic treatments including the treatment of primary and metastatic tumours.
    Type: Application
    Filed: December 22, 2017
    Publication date: May 3, 2018
    Inventors: Brian Stanley Hawkett, Trevor William Hambley, Nicole Sarah Bryce, Thi Thuy Binh Pham, Nirmesh Jain
  • Publication number: 20170333942
    Abstract: A method of polymerising monomer to form polymer at the surface of particulate material, said method comprising: providing a dispersion of said particulate material in a continuous liquid phase, said dispersion comprising a RAFT agent as a stabiliser for said particulate material, and said continuous liquid phase comprising one or more ethylenically unsaturated monomers; and polymerising said one or more ethylenically unsaturated monomers under the control of said RAFT agent to thereby form polymer at the surface of said particulate material.
    Type: Application
    Filed: July 14, 2017
    Publication date: November 23, 2017
    Inventors: Brian Stanley HAWKETT, Christopher Henry SUCH, Duc Ngoc NGUYEN, Jason Michael FARRUGIA, Olga Maree MACKINNON
  • Patent number: 9731321
    Abstract: A method of polymerizing monomer to form polymer at the surface of particulate material, said method comprising: providing a dispersion of said particulate material in a continuous liquid phase, said dispersion comprising a RAFT agent as a stabilizer for said particulate material, and said continuous liquid phase comprising one or more ethylenically unsaturated monomers; and polymerizing said one or more ethylenically unsaturated monomers under the control of said RAFT agent to thereby form polymer at the surface of said particulate material.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: August 15, 2017
    Assignee: The University of Sydney
    Inventors: Brian Stanley Hawkett, Christopher Henry Such, Duc Ngoc Nguyen, Jason Michael Farrugia, Olga Maree Mackinnon
  • Patent number: 9339781
    Abstract: The present invention relates to a method of preparing an aqueous dispersion of polymer encapsulated particulate material, the method comprising: providing a dispersion of the particulate material in a continuous aqueous phase, the dispersion comprising ethylenically unsaturated monomer and a stabilizer for the particulate material; and polymerizing the ethylenically unsaturated monomer by non-living free radical polymerization to form polymer that encapsulates the particulate material, thereby providing the aqueous dispersion of polymer encapsulated particulate material; wherein polymerization of the ethylenically unsaturated monomer comprises: (a) polymerizing a monomer composition that includes ionizable ethylenically unsaturated monomer so as to form a base responsive water swellable non-living polymer layer that encapsulates the particulate material; and (b) polymerizing a monomer composition that includes non-ionizable ethylenically unsaturated monomer so as to form an extensible, water and base permeab
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: May 17, 2016
    Assignee: The University of Sydney
    Inventors: Matthew Paul Baker, Timothy Warren Davey, Brian Stanley Hawkett, Duc Ngoc Nguyen, Christopher Henry Such
  • Publication number: 20150037252
    Abstract: The present invention relates generally to a method of treating a neoplastic condition and to agents useful for same. More particularly, the present invention is directed to a method of facilitating the treatment of a solid tumor in a localised manner via the co-administration of particulate material and a cellular toxin. The method of the present invention is useful in a range of therapeutic treatments including the treatment of primary and metastatic tumors.
    Type: Application
    Filed: April 20, 2012
    Publication date: February 5, 2015
    Applicant: THE UNIVERSITY OF SYDNEY
    Inventors: Brian Stanley Hawkett, Trevor William Hambley, Nicole Sarah Bryce, Thi Thuy Binh Pham, Nirmesh Jain
  • Publication number: 20140329932
    Abstract: The present invention relates to a method of preparing an aqueous dispersion of polymer encapsulated particulate material, the method comprising: providing a dispersion of the particulate material in a continuous aqueous phase, the dispersion comprising ethylenically unsaturated monomer and a stabiliser for the particulate material; and polymerising the ethylenically unsaturated monomer by non-living free radical polymerisation to form polymer that encapsulates the particulate material, thereby providing the aqueous dispersion of polymer encapsulated particulate material; wherein polymerisation of the ethylenically unsaturated monomer comprises: (a) polymerising a monomer composition that includes ionisable ethylenically unsaturated monomer so as to form a base responsive water swellable non-living polymer layer that encapsulates the particulate material; and (b) polymerising a monomer composition that includes non-ionisable ethylenically unsaturated monomer so as to form an extensible, water and base permeab
    Type: Application
    Filed: May 31, 2012
    Publication date: November 6, 2014
    Applicant: THE UNIVERSITY OF SYDNEY
    Inventors: Matthew Paul Baker, Timothy Warren Davey, Brian Stanley Hawkett, Duc Ngoc Nguyen, Christopher Henry Such
  • Patent number: 8852641
    Abstract: The present invention relates to polymer microgel beads having a polymeric matrix with nanomagnetic particles dispersed substantially uniformly therethrough, wherein a steric stabilizer is associated with the particles, the steric stabilizer being a polymeric material that (i) forms at least part of the polymeric matrix of the beads, and (ii) comprises a steric stabilizing polymeric segment and an anchoring polymeric segment, wherein the steric stabilizing polymeric segment is different from the anchoring polymeric segment, and wherein the anchoring polymeric segment has an affinity toward the surface of the nanomagnetic particles and secures the stabilizer to the particles.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: October 7, 2014
    Assignee: The University of Sydney
    Inventors: Brian Stanley Hawkett, Nirmesh Jain
  • Patent number: 8796359
    Abstract: The invention provides a method of polymerizing monomer to form polymer at the surface of solid particulate material, said method comprising: providing a dispersion of said solid particulate material in a continuous hydrophilic liquid phase, said dispersion comprising a hydrophilic RAFT agent as a stabilizer for said solid particulate material, and said continuous hydrophilic liquid phase comprising one or more ethylenically unsaturated monomers; and polymerizing said one or more ethylenically unsaturated monomers under the control of said hydrophilic RAFT agent to thereby form polymer at the surface of said solid particulate material.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: August 5, 2014
    Assignee: The University of Sydney
    Inventors: Brian Stanley Hawkett, Christopher Henry Such, Duc Ngoc Nguyen
  • Patent number: 8779029
    Abstract: The invention provides a method of polymerising monomer to form polymer at the surface of solid particulate material, said method comprising: providing a dispersion of said solid particulate material in a continuous hydrophilic liquid phase, said dispersion comprising a hydrophilic RAFT agent as a stabiliser for said solid particulate material, and said continuous hydrophilic liquid phase comprising one or more ethylenically unsaturated monomers; and polymerising said one or more ethylenically unsaturated monomers under the control of said hydrophilic RAFT agent to thereby form polymer at the surface of said solid particulate material.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: July 15, 2014
    Assignee: The University of Sydney
    Inventors: Brian Stanley Hawkett, Christopher Henry Such, Duc Ngoc Nguyen
  • Patent number: 8765183
    Abstract: The present invention relates to polymer microgel beads having a polymeric matrix with nanomagnetic particles dispersed substantially uniformly therethrough, wherein a steric stabiliser is associated with the particles, the steric stabiliser being a polymeric material that (i) does not form part of the polymeric matrix of the beads, and (ii) comprises a steric stabilising polymeric segment and an anchoring polymeric segment, wherein the steric stabilising polymeric segment is different from the anchoring polymeric segment, and wherein the anchoring polymeric segment has an affinity toward the surface of the nanomagnetic particles and secures the stabiliser to the particles.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: July 1, 2014
    Assignee: The University of Sydney
    Inventors: Brian Stanley Hawkett, Nirmesh Jain
  • Patent number: 8709486
    Abstract: The present invention relates to a composition suitable for administration to a subject, the composition comprising pharmacologically acceptable particulate material dispersed throughout a pharmacologically acceptable liquid carrier, the particulate material being maintained in the dispersed state by a steric stabilizer, wherein the steric stabilizer is a polymeric material comprising a steric stabilizing polymeric segment and an anchoring polymeric segment, one or both of which are derived from one or more ethylenically unsaturated monomers that have been polymerized by a living polymerization technique, wherein the steric stabilizing polymeric segment is different from the anchoring polymeric segment, and wherein the anchoring polymeric segment has an affinity toward the surface of the particulate material and secures the stabilizer to the particulate material.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: April 29, 2014
    Assignee: The University of Sydney
    Inventors: Brian Stanley Hawkett, Nirmesh Jain, Thi Thuy Binh Pham, Yanjun Wang, Gregory Goodman Warr
  • Publication number: 20120128743
    Abstract: The present invention relates to a method of forming polymer on the surface of polymer particles, the method comprising: (i) providing a dispersion comprising a continuous aqueous phase, a dispersed organic phase comprising one or more ethylenically unsaturated monomers, and a RAFT agent as a stabiliser for said organic phase; (ii) polymerising the one or more ethylenically unsaturated monomers under the control of the RAFT agent to form an aqueous dispersion of seed polymer particles; (iii) crosslinking the seed polymer particles; (iv) swelling the crosslinked seed particles with one or more ethylenically unsaturated monomers to form an aqueous dispersion of monomer swollen crosslinked seed polymer particles; (v) increasing the temperature of the monomer swollen crosslinked seed polymer particles to expel at least some of the monomer therein onto the surface of the particles; and polymerising at least the expelled monomer to form polymer on the surface of the particles.
    Type: Application
    Filed: February 24, 2010
    Publication date: May 24, 2012
    Inventors: Brian Stanley Hawkett, Thi Thuy Binh Pham, Christopher Henry Such