Patents by Inventor David Leslie Officer

David Leslie Officer 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: 20210328221
    Abstract: The present disclosure provides a dispersible graphene platelet and a method of making same. The structure of the graphene platelet 10 comprises a base layer 1 of graphene on which at least one discontinuous layer 2, 3, 4 of graphene is stacked, with each layer of graphene above the base layer having a smaller surface area than the layer it is stacked upon. The edges of the base layer and the discontinuous layers stacked upon it are all at least partially functionalised 5, providing a structure with graphene-like properties owing to the base layer and relatively high dispersibility owing to the increased amount of functionalised groups on each platelet. The platelets may be used for a number of applications, for example in the production of electrodes or composite materials.
    Type: Application
    Filed: October 4, 2019
    Publication date: October 21, 2021
    Applicant: UNIVERSITY OF WOLLONGONG
    Inventors: Gordon George WALLACE, David Leslie OFFICER, Rouhollah JALILI, Ashley John WALKER, Gregory Michael RYDER, Shaikh Nayeem FAISAL
  • Patent number: 10428431
    Abstract: Water-splitting devices and methods for manufacturing water-splitting devices or solar cells is disclosed. The method seeks to provide a relatively high-volume, low-cost mass-production method. In one example, the method facilitates simultaneous co-assembly of one or more sub-units and two or more polymer films or sheets to form a water-splitting device. According to another aspect, there is provided an improved water-splitting device. In one example form, there is provided a water-splitting device which includes a first electrode for producing oxygen gas and a second electrode for producing hydrogen gas from water. The first electrode and the second electrode are positioned between a first outer polymer layer and a second outer polymer layer, and at least one spacer layer is positioned between the first outer polymer layer and the second outer polymer layer.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: October 1, 2019
    Assignee: AQUAHYDREX PTY LTD
    Inventors: Gerhard Frederick Swiegers, David Leslie Officer, Gordon George Wallace
  • Patent number: 9708719
    Abstract: Water-splitting devices and methods for manufacturing water-splitting devices or solar cells is disclosed. The method seeks to provide a relatively high-volume, low-cost mass-production method. In one example, the method facilitates simultaneous co-assembly of one or more sub-units and two or more polymer films or sheets to form a water-splitting device. According to another aspect, there is provided an improved water-splitting device. In one example form, there is provided a water-splitting device which includes a first electrode for producing oxygen gas and a second electrode for producing hydrogen gas from water. The first electrode and the second electrode are positioned between a first outer polymer layer and a second outer polymer layer, and at least one spacer layer is positioned between the first outer polymer layer and the second outer polymer layer.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: July 18, 2017
    Assignee: AQUAHYDREX PTY LTD
    Inventors: Gerhard Frederick Swiegers, David Leslie Officer, Gordon George Wallace
  • Publication number: 20170200561
    Abstract: Water-splitting devices and methods for manufacturing water-splitting devices or solar cells is disclosed. The method seeks to provide a relatively high-volume, low-cost mass-production method. In one example, the method facilitates simultaneous co-assembly of one or more sub-units and two or more polymer films or sheets to form a water-splitting device. According to another aspect, there is provided an improved water-splitting device. In one example form, there is provided a water-splitting device which includes a first electrode for producing oxygen gas and a second electrode for producing hydrogen gas from water. The first electrode and the second electrode are positioned between a first outer polymer layer and a second outer polymer layer, and at least one spacer layer is positioned between the first outer polymer layer and the second outer polymer layer.
    Type: Application
    Filed: March 24, 2017
    Publication date: July 13, 2017
    Applicant: AQUAHYDREX PTY LTD
    Inventors: Gerhard Frederick SWIEGERS, David Leslie OFFICER, Gordon George WALLACE
  • Publication number: 20140048423
    Abstract: Water-splitting devices and methods for manufacturing water-splitting devices or solar cells is disclosed. The method seeks to provide a relatively high-volume, low-cost mass-production method. In one example, the method facilitates simultaneous co-assembly of one or more sub-units and two or more polymer films or sheets to form a water-splitting device. According to another aspect, there is provided an improved water-splitting device. In one example form, there is provided a water-splitting device which includes a first electrode for producing oxygen gas and a second electrode for producing hydrogen gas from water. The first electrode and the second electrode are positioned between a first outer polymer layer and a second outer polymer layer, and at least one spacer layer is positioned between the first outer polymer layer and the second outer polymer layer.
    Type: Application
    Filed: December 9, 2011
    Publication date: February 20, 2014
    Applicant: UNIVERSITY OF WOLLONGONG
    Inventors: Gerhard Frederick Swiegers, David Leslie Officer, Gordon George Wallace
  • Publication number: 20140014179
    Abstract: A light-modulating electrical device is disclosed and a method for manufacturing a light-modulating electrical device. The method includes, as a single lamination process, positioning a light-modulating electrical unit at least partially within a recess, the recess provided in a first polymer film or an optically transparent polymer film, and fixing the optically transparent polymer film to the first polymer film so as to cover the light-modulating electrical unit. In one example, the light-modulating electrical unit is comprised of two or more sub-units and is itself formed as part of the lamination process.
    Type: Application
    Filed: December 9, 2011
    Publication date: January 16, 2014
    Applicant: UNIVERSITY OF WOLLONGONG
    Inventors: Gerhard Frederick Swiegers, David Leslie Officer, Gordon George Wallace
  • Publication number: 20130255761
    Abstract: A working electrode and dye sensitized solar (DSSC) cell having working electrode where the working electrode includes a porous metal foil conductor and a particulate metal oxide layer on the side of the foil for facing incident light and process for preparing the electrode and
    Type: Application
    Filed: June 17, 2011
    Publication date: October 3, 2013
    Applicant: POLYMERS CRC LTD.
    Inventors: Grant Alexander Mathieson, David Leslie Officer, Michael James Ventura
  • Publication number: 20090014920
    Abstract: The invention relates to polymer filaments and methods for their production. In particular, although not exclusively, the invention relates to conducting polymer filaments and their production from solutions of polymerisable oxidizable monomer units.
    Type: Application
    Filed: June 24, 2005
    Publication date: January 15, 2009
    Applicant: MASSEY UNIVERSITY
    Inventors: Warwick John Belcher, Alan Graham MacDiarmid, David Leslie Officer, Simon Berners Hall
  • Publication number: 20080283122
    Abstract: The invention relates to ΓΏ-substituted porphyrins, methods for their synthesis, and their use in the preparation of photoelectric materials. In particular, the invention relates to solid state photoelectric devices, including solar cells and photodetectors, incorporating these photoelectric materials, with improved photon-to-current conversion efficiencies.
    Type: Application
    Filed: October 10, 2005
    Publication date: November 20, 2008
    Inventors: Wayne Mason Campbell, David Leslie Officer, Michael Graetzel, Md. Khaja Nazeeruddin