Patents by Inventor James Johnstone

James Johnstone 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: 12391843
    Abstract: The invention provides liquid compositions comprising conductive carbon particles and/or carbon nanoparticles, a thickening agent, and a solvent. The carbon nanoparticles are preferably a mixture of graphite nanoplatelets and carbon nanotubes and the thickening agent is preferably a cellulose derivative. The liquid compositions can be used as ink to print highly conductive films that adhere to paper substrates.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: August 19, 2025
    Assignee: ADVANCED MATERIAL DEVELOPMENT LIMITED
    Inventors: Alan Dalton, Matthew Large, Sean Ogilvie, James Johnstone
  • Publication number: 20240384123
    Abstract: The invention provides electrically conductive films containing graphene nanoplatelets packed in a substantially Apollonian manner. The films may also comprise carbon nanotubes in order to improve their conductivity. The invention also provides liquid compositions that can be used to print the electrically conductive films described herein.
    Type: Application
    Filed: September 2, 2022
    Publication date: November 21, 2024
    Inventors: Alan DALTON, James JOHNSTONE, Matthew LARGE, Sean OGILVIE, Tim WILDERSPIN
  • Publication number: 20240151498
    Abstract: The invention provides devices for active modification of thermal radiation, the devices comprising: (i) a substrate; (ii) one or more polymeric permeable membranes comprising an ionic liquid electrolyte; (iii) one or more electrodes comprising carbon nanotubes deposited onto the surface of at least one of the one or more polymeric membranes; and (iv) a protective encapsulation layer. The invention also provides methods of making such devices.
    Type: Application
    Filed: March 3, 2022
    Publication date: May 9, 2024
    Inventors: James Johnstone, Alan Dalton, Peter Lynch, Matthew Large, Sean Ogilvie
  • Publication number: 20240051326
    Abstract: The invention provides a Raman-detectible composition comprising two or more different Raman-active 2D materials. Also provided is a formulation comprising the Raman-detectible composition and a binder; a substrate comprising the Raman-detectible composition; the use of the Raman-detectible composition to tag a substrate; a method for tagging a substrate with the Raman-detectible composition; and a method for analysing a substrate or formulation for the presence of the Raman detectible composition.
    Type: Application
    Filed: October 29, 2021
    Publication date: February 15, 2024
    Inventors: Peter LYNCH, Alan DALTON, Sean OGILVIE, Matthew LARGE, James JOHNSTONE
  • Publication number: 20230142469
    Abstract: The invention provides liquid compositions comprising conductive carbon particles and/or carbon nanoparticles, a thickening agent, and a solvent. The carbon nanoparticles are preferably a mixture of graphite nanoplatelets and carbon nanotubes and the thickening agent is preferably a cellulose derivative. The liquid compositions can be used as ink to print highly conductive films that adhere to paper substrates.
    Type: Application
    Filed: March 4, 2021
    Publication date: May 11, 2023
    Inventors: Alan DALTON, Matthew LARGE, Sean OGILVIE, James JOHNSTONE
  • Patent number: 10914679
    Abstract: The invention relates to a method for determining a scale inhibitor concentration in a sample comprising at least a first scale inhibitor, which is a synthetic organic compound comprising at least one ionised group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample to interact with a reagent comprising a lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement, and the concentration of the at least first scale inhibitor in the sample is determined by using the detected sample signal.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: February 9, 2021
    Assignee: Kemira Oyj
    Inventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Paul Mundill
  • Patent number: 10241047
    Abstract: The invention relates to a method for analysing a sample comprising at least a first and a second scale inhibitor, which scale inhibitors are synthetic organic compounds comprising at least one ionised group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample interact with a reagent comprising lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement. The total concentration of the first and the second scale inhibitor is determined by using the detected sample signal, and the concentration of the first scale inhibitor in the sample is determined. The concentration of the second scale inhibitor is determined mathematically by using the obtained results for the total concentration and for the first scale inhibitor concentration.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: March 26, 2019
    Assignee: Kemira Oyj
    Inventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Mirva Lehmusto, Satu Tiittanen, Pave Väisänen, Joonas Siivonen, Paul Mundill
  • Publication number: 20180284022
    Abstract: The invention relates to a method for determining a scale inhibitor concentration in a sample comprising at least a first scale inhibitor, which is a synthetic organic compound comprising at least one ionised group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample to interact with a reagent comprising a lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement, and the concentration of the at least first scale inhibitor in the sample is determined by using the detected sample signal.
    Type: Application
    Filed: March 21, 2018
    Publication date: October 4, 2018
    Applicant: Kemira Oyj
    Inventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Paul Mundill
  • Patent number: 9958389
    Abstract: The invention relates to a method for determining a scale inhibitor concentration in a sample comprising at least a first scale inhibitor, which is a synthetic organic compound comprising at least one ionized group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample to interact with a reagent comprising a lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement, and the concentration of the at least first scale inhibitor in the sample is determined by using the detected sample signal.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: May 1, 2018
    Assignee: KEMIRA OYJ
    Inventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Paul Mundill
  • Publication number: 20180017494
    Abstract: The invention relates to a method for analysing a sample comprising at least a first and a second scale inhibitor, which scale inhibitors are synthetic organic compounds comprising at least one ionised group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample interact with a reagent comprising lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement. The total concentration of the first and the second scale inhibitor is determined by using the detected sample signal, and the concentration of the first scale inhibitor in the sample is determined. The concentration of the second scale inhibitor is determined mathematically by using the obtained results for the total concentration and for the first scale inhibitor concentration.
    Type: Application
    Filed: September 27, 2017
    Publication date: January 18, 2018
    Applicant: Kemira Oyj
    Inventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Mirva Lehmusto, Satu Tiittanen, Pave Väisänen, Joonas Siivonen, Paul Mundill
  • Patent number: 9816927
    Abstract: The invention relates to a method for analysing a sample comprising at least a first and a second scale inhibitor, which scale inhibitors are synthetic organic compounds comprising at least one ionised group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample interact with a reagent comprising lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement. The total concentration of the first and the second scale inhibitor is determined by using the detected sample signal, and the concentration of the first scale inhibitor in the sample is determined. The concentration of the second scale inhibitor is determined mathematically by using the obtained results for the total concentration and for the first scale inhibitor concentration.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: November 14, 2017
    Assignee: KEMIRA OYJ
    Inventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Mirva Lehmusto, Satu Tiittanen, Pave Väisänen, Joonas Siivonen, Paul Mundill
  • Publication number: 20160290923
    Abstract: The invention relates to a method for determining a scale inhibitor concentration in a sample comprising at least a first scale inhibitor, which is a synthetic organic compound comprising at least one ionised group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample to interact with a reagent comprising a lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement, and the concentration of the at least first scale inhibitor in the sample is determined by using the detected sample signal.
    Type: Application
    Filed: November 18, 2014
    Publication date: October 6, 2016
    Applicant: KEMIRA OYJ
    Inventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Paul Mundill
  • Publication number: 20160290924
    Abstract: The invention relates to a method for analysing a sample comprising at least a first and a second scale inhibitor, which scale inhibitors are synthetic organic compounds comprising at least one ionised group. The method comprises optionally diluting and/or purifying the sample, and allowing the sample interact with a reagent comprising lanthanide(III) ion. The sample is excited at a first excitation wavelength and a sample signal deriving from the lanthanide(III) ion is detected at a signal wavelength by using time-resolved luminescence measurement. The total concentration of the first and the second scale inhibitor is determined by using the detected sample signal, and the concentration of the first scale inhibitor in the sample is determined. The concentration of the second scale inhibitor is determined mathematically by using the obtained results for the total concentration and for the first scale inhibitor concentration.
    Type: Application
    Filed: November 18, 2014
    Publication date: October 6, 2016
    Applicant: Kemira Oyj
    Inventors: Vesa Nuutinen, Susanna Toivonen, James Johnstone, Harri Härmä, Mirva Lehmusto, Satu Tiittanen, Pave Väisänen, Joonas Siivonen, Paul Mundill
  • Publication number: 20060099052
    Abstract: A document binder of the type comprising a chassis (12) adapted to removably receive either a plurality of covers (11) with associated document pages therein with spines (10) of the covers in a generally lowermost position or to removably receive a cassette (1) configured to hold such plurality of covers, and a generally horizontal heated plate (18) that operatively engages the spines of the plurality of covers to heat same when enganged wherewith in consequence of appropriate relative movement of the heated plate and spines of the covers I an upwards and downwards direction is provided.
    Type: Application
    Filed: May 28, 2003
    Publication date: May 11, 2006
    Inventor: James Johnstone