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).
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Publication number: 20210328221Abstract: 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: ApplicationFiled: October 4, 2019Publication date: October 21, 2021Applicant: UNIVERSITY OF WOLLONGONGInventors: Gordon George WALLACE, David Leslie OFFICER, Rouhollah JALILI, Ashley John WALKER, Gregory Michael RYDER, Shaikh Nayeem FAISAL
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Patent number: 10428431Abstract: 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: GrantFiled: March 24, 2017Date of Patent: October 1, 2019Assignee: AQUAHYDREX PTY LTDInventors: Gerhard Frederick Swiegers, David Leslie Officer, Gordon George Wallace
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Patent number: 9708719Abstract: 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: GrantFiled: December 9, 2011Date of Patent: July 18, 2017Assignee: AQUAHYDREX PTY LTDInventors: Gerhard Frederick Swiegers, David Leslie Officer, Gordon George Wallace
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Publication number: 20170200561Abstract: 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: ApplicationFiled: March 24, 2017Publication date: July 13, 2017Applicant: AQUAHYDREX PTY LTDInventors: Gerhard Frederick SWIEGERS, David Leslie OFFICER, Gordon George WALLACE
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Publication number: 20140048423Abstract: 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: ApplicationFiled: December 9, 2011Publication date: February 20, 2014Applicant: UNIVERSITY OF WOLLONGONGInventors: Gerhard Frederick Swiegers, David Leslie Officer, Gordon George Wallace
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Publication number: 20140014179Abstract: 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: ApplicationFiled: December 9, 2011Publication date: January 16, 2014Applicant: UNIVERSITY OF WOLLONGONGInventors: Gerhard Frederick Swiegers, David Leslie Officer, Gordon George Wallace
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Publication number: 20130255761Abstract: 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 andType: ApplicationFiled: June 17, 2011Publication date: October 3, 2013Applicant: POLYMERS CRC LTD.Inventors: Grant Alexander Mathieson, David Leslie Officer, Michael James Ventura
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Publication number: 20090014920Abstract: 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: ApplicationFiled: June 24, 2005Publication date: January 15, 2009Applicant: MASSEY UNIVERSITYInventors: Warwick John Belcher, Alan Graham MacDiarmid, David Leslie Officer, Simon Berners Hall
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Publication number: 20080283122Abstract: 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: ApplicationFiled: October 10, 2005Publication date: November 20, 2008Inventors: Wayne Mason Campbell, David Leslie Officer, Michael Graetzel, Md. Khaja Nazeeruddin