Patents by Inventor David Farrar

David Farrar 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).

  • Patent number: 11909352
    Abstract: A spectrum splitting, transmissive concentrating photovoltaic (tCPV) module is proposed and designed for a hybrid photovoltaic-solar thermal (PV/T) system. The system may be able to fully utilize the full spectrum of incoming sunlight. By utilizing III-V triple junction solar cells with bandgaps of approximately 2.1 eV, 1.7 eV, and 1.4 eV in the module, ultraviolet (UV) and visible light (in-band light) are absorbed and converted to electricity, while infrared (IR) light (out-of-band light) passes through and is captured by a solar thermal receiver and stored as heat. The stored heat energy may be dispatched as electricity or process heat as needed. The tCPV module may have an overall power conversion efficiency exceeding 43.5% for above bandgap (in-band) light under a standard AM1.5D solar spectrum with an average concentration ratio of 400 suns. Passive and/or active cooling methods may be used to keep cells below 110° C.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: February 20, 2024
    Assignee: THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND
    Inventors: Matthew David Escarra, Qi Xu, Yaping Ji, Brian C. Riggs, Adam Ollanik, Kazi M. Islam, Daniel Codd, Vince Romanin, Nicholas David Farrar-Foley
  • Publication number: 20220395607
    Abstract: A swellable biocompatible material and method of making the same. The material comprises a water-absorbing swellable polymer infused with povidone-iodine and a water-soluble control compound configured to control a release of iodine form the material. Example swellable polymers includes polysaccharides and hydrocolloid forming compounds.
    Type: Application
    Filed: October 22, 2020
    Publication date: December 15, 2022
    Inventors: Christopher Ochayi AGBOH, David FARRAR
  • Publication number: 20210154351
    Abstract: A moisture absorbent material capable of biomedical application to absorb and manage bodily fluids such as blood and wound exudate as a wound or first aid dressing or bandage. The material is a psyllium foam based material offering high absorbency and potentially haemostatic characteristics.
    Type: Application
    Filed: August 23, 2018
    Publication date: May 27, 2021
    Inventors: Christopher Ochayi Agboh, David Farrar
  • Publication number: 20190284095
    Abstract: This application relates to a polymer that is useful as a cement additive, wherein the polymer is produced by copolymerisation of an olefinic mono-carboxylic acid or salt thereof, an acrylamide sulfonic acid or salt thereof, and an allylic sulfonic acid or salt thereof. The application also relates to a method of making such a polymer, a composition comprising such a polymer and cement or a cementitious slurry, use of such a polymer as an additive to a cementitious material, and a cementitious material comprising such a polymer.
    Type: Application
    Filed: May 15, 2017
    Publication date: September 19, 2019
    Applicant: Devine Chemicals Limited
    Inventors: Michael SINGH, David FARRAR
  • Publication number: 20190115869
    Abstract: A spectrum splitting, transmissive concentrating photovoltaic (tCPV) module is proposed and designed for a hybrid photovoltaic-solar thermal (PV/T) system. The system may be able to fully utilize the full spectrum of incoming sunlight. By utilizing III-V triple junction solar cells with bandgaps of approximately 2.1 eV, 1.7 eV, and 1.4 eV in the module, ultraviolet (UV) and visible light (in-band light) are absorbed and converted to electricity, while infrared (IR) light (out-of-band light) passes through and is captured by a solar thermal receiver and stored as heat. The stored heat energy may be dispatched as electricity or process heat as needed. The tCPV module may have an overall power conversion efficiency exceeding 43.5% for above bandgap (in-band) light under a standard AM1.5D solar spectrum with an average concentration ratio of 400 suns. Passive and/or active cooling methods may be used to keep cells below 110° C.
    Type: Application
    Filed: March 28, 2017
    Publication date: April 18, 2019
    Applicant: The Administrators of the Tulane Educational Fund
    Inventors: Matthew David Escarra, Qi Xy, Yaping Ji, Brian C. Riggs, Adam Ollanik, Kazi M. Islam, Daniel Codd, Vince Romanin, Nicholas David Farrar-Foley
  • Patent number: 10023782
    Abstract: A salt-tolerant, thermally-stable rheology modifier and, in particular, a rheology modifier for applications in oilfield well-bore fluids. In accordance with one aspect, the rheology modifier comprises a terpolymer of acrylamide, 2-acrylamido-2-methyl-propanesulfonic acid (AMPS) and a long-chain alkyl acrylate wherein the terpolymer is prepared by dispersion polymerization.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: July 17, 2018
    Assignee: ISP INVESTMENTS LLC
    Inventors: Janice Jianzhao Wang, Jun Zheng, David Farrar, Osama M. Musa
  • Publication number: 20170335162
    Abstract: A salt-tolerant, thermally-stable rheology modifier and, in particular, a rheology modifier for applications in oilfield well-bore fluids. In accordance with one aspect, the rheology modifier comprises a terpolymer of acrylamide, 2-acrylamido-2-methyl-propanesulfonic acid (AMPS) and a long-chain alkyl acrylate wherein the terpolymer is prepared by dispersion polymerization.
    Type: Application
    Filed: April 3, 2017
    Publication date: November 23, 2017
    Inventors: Janice Jianzhao WANG, Jun ZHENG, David FARRAR, Osama M. MUSA
  • Patent number: 9611416
    Abstract: A salt-tolerant, thermally-stable rheology modifier and, in particular, a rheology modifier for applications in oilfield well-bore fluids. In accordance with one aspect, the rheology modifier comprises a terpolymer of acrylamide, 2-acrylamido-2-methyl-propanesulfonic acid (AMPS) and a long-chain alkyl acrylate wherein the terpolymer is prepared by dispersion polymerization.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: April 4, 2017
    Assignee: ISP INVESTMENTS LLC
    Inventors: Janice Jianzhao Wang, Jun Zheng, David Farrar, Osama M. Musa
  • Patent number: 9504574
    Abstract: Tissue fixation devices are provided. The devices include a first component and a second component, the components having different rates of in vivo degradation. The first component and second component are arranged so that, upon degradation of one of the components, the other component provides a scaffold into which bone can grow.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: November 29, 2016
    Assignee: Smith & Nephew, Inc.
    Inventors: David Farrar, Malcolm Brown, Michael Hall, John Eric Brunelle, Nicholas John Cotton, Rod Berube, John Lipchitz
  • Publication number: 20150164643
    Abstract: Tissue fixation devices are provided. The devices include a first component and a second component, the components having different rates of in vivo degradation. The first component and second component are arranged so that, upon degradation of one of the components, the other component provides a scaffold into which bone can grow.
    Type: Application
    Filed: February 25, 2015
    Publication date: June 18, 2015
    Inventors: David FARRAR, Malcolm Brown, Michael Hall, John Eric Brunelle, Nicholas John Cotton, Rod Berube, John Lipchitz
  • Patent number: 8992614
    Abstract: Tissue fixation devices are provided. The devices include a first component and a second component, the components having different rates of in vivo degradation. The first component and second component are arranged so that, upon degradation of one of the components, the other component provides a scaffold into which bone can grow.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: March 31, 2015
    Assignee: Smith & Nephew, Inc.
    Inventors: David Farrar, Malcolm Brown, Michael Hall, John Eric Brunelle, Nicholas John Cotton, Rod Berube, John Lipchitz
  • Publication number: 20130323402
    Abstract: Tissue fixation devices are provided. The devices include a first component and a second component, the components having different rates of in vivo degradation. The first component and second component are arranged so that, upon degradation of one of the components, the other component provides a scaffold into which bone can grow.
    Type: Application
    Filed: August 7, 2013
    Publication date: December 5, 2013
    Applicant: SMITH & NEPHEW, INC.
    Inventors: DAVID FARRAR, MALCOLM BROWN, MICHAEL HALL, JOHN ERIC BRUNELLE, NICHOLAS JOHN COTTON, ROD BERUBE, JOHN LIPCHITZ
  • Publication number: 20130323294
    Abstract: Tissue fixation devices are provided. The devices include a first component and a second component, the components having different rates of in vivo degradation. The first component and second component are arranged so that, upon degradation of one of the components, the other component provides a scaffold into which bone can grow.
    Type: Application
    Filed: August 7, 2013
    Publication date: December 5, 2013
    Applicant: SMITH & NEPHEW, INC.
    Inventors: DAVID FARRAR, MALCOLM BROWN, MICHAEL HALL, JOHN ERIC BRUNELLE, NICHOLAS JOHN COTTON, ROD BERUBE, JOHN LIPCHITZ
  • Publication number: 20130324443
    Abstract: A salt-tolerant, thermally-stable rheology modifier and, in particular, a rheology modifier for applications in oil-field well-bore fluids. In accordance with one aspect, the rheology modifier comprises a terpolymer of acrylamide, 2-acrylamido-2-methyl-propanesulfonic acid (AMPS) and a long-chain alkyl acrylate wherein the terpolymer is prepared by dispersion polymerization.
    Type: Application
    Filed: October 25, 2011
    Publication date: December 5, 2013
    Applicant: ISP Investments Inc.
    Inventors: Janice Jianzhao Wang, Jun Zheng, David Farrar, OSama M. Musa
  • Patent number: 8529625
    Abstract: Tissue fixation devices are provided. The devices include a first component and a second component, the components having different rates of in vivo degradation. The first component and second component are arranged so that, upon degradation of one of the components, the other component provides a scaffold into which bone can grow.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: September 10, 2013
    Assignee: Smith & Nephew, Inc.
    Inventors: David Farrar, Malcolm Brown, Michael Hall, John Eric Brunelle, Nicholas John Cotton, Rod Berube, John Lipchitz
  • Patent number: 7495036
    Abstract: A clear personal care or other aqueous gel is formed from dry polymer particles which are free of materials which render the gel cloudy and which are made by reverse phase emulsion polymerisation. The polymerisation process involves distilling water from the emulsion in the presence of sufficient non-aqueous liquid to prevent breakage of the emulsion and then washing the polymer particles with isopropanol or other suitable solvent and evaporating the solvent.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: February 24, 2009
    Inventors: David Farrar, Jason Lloyd Mellor, Adrian Swinburne Allen, Frederick Anthony Bell
  • Publication number: 20070129810
    Abstract: Tissue fixation devices are provided. The devices include a first component and a second component, the components having different rates of in vivo degradation. The first component and second component are arranged so that, upon degradation of one of the components, the other component provides a scaffold into which bone can grow.
    Type: Application
    Filed: January 30, 2007
    Publication date: June 7, 2007
    Applicant: Smith & Nephew, Inc.
    Inventors: David Farrar, Malcolm Brown, Michael Hall, John Brunelle, Nicholas Cotton, Rod Berube, John Lipchitz
  • Publication number: 20060111476
    Abstract: A clear personal care or other aqueous gel is formed from dry polymer particles which are free of materials which render the gel cloudy and which are made by reverse phase emulsion polymerisation. The polymerisation process involves distilling water from the emulsion in the presence of sufficient non-aqueous liquid to prevent breakage of the emulsion and then washing, the polymer particles with isopropanol or other suitable solvent and evaporating the solvent.
    Type: Application
    Filed: July 31, 2003
    Publication date: May 25, 2006
    Inventors: David Farrar, Jason Mellor, Adrian Allen, Frederick Bell
  • Publication number: 20050042253
    Abstract: Tissue fixation devices are provided. The devices include a first component and a second component, the components having different rates of in vivo degradation. The first component and second component are arranged so that, upon degradation of one of the components, the other component provides a scaffold into which bone can grow.
    Type: Application
    Filed: August 22, 2003
    Publication date: February 24, 2005
    Inventors: David Farrar, Malcolm Brown, Michael Hall, John Brunelle, Nicholas Cotton, Rod Berube, John Lipchitz
  • Patent number: 5384343
    Abstract: A water absorbing particulate polymer material wherein the polymer material when in dry powder form has a particle size of about 50 .mu.m to about 500 .mu.m and wherein the particles consist of internally bonded finer particles which finer particles have a size below 50 .mu.m. The process of using the water absorbing polymer, material to convert a wet sticky mass of inorganic particulate such as coal fines into a crumbly or flowable solid. A process using a water absorbing particulate polymer material to convert a wet sticky mass of organic particulate material into a crumbly or flowable solid wherein the organic matter can be, for example, food waste or sewage.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: January 24, 1995
    Assignee: Allied Colloids Limited
    Inventors: David Farrar, Peter Flesher, Malcolm Skinner, John Clarke, David Marshall