Patents Assigned to Johnson Matthey Public Limited Company
  • Patent number: 11788450
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising a first platinum group metal (PGM) component supported on a first PGM support material, wherein the first PGM component comprises rhodium (Rh) and platinum (Pt); and wherein Pt and Rh has a weight ratio of at least 1:10.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: October 17, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Paul Millington, Maria C. Vlachou
  • Patent number: 11786885
    Abstract: A method of manufacturing a catalyst article, the method comprising: providing a slurry comprising a support material, palladium ions, alkaline-earth-metal ions and an organic compound, wherein the organic compound comprises a functional group selected from a sulfo group (—SO3H), a sulfonyl group (—S(?O)2—) and a sulfinyl group (—S(?O)—); disposing the slurry on a substrate; and heating the slurry to form nanoparticles of the palladium and nanoparticles of a sulfate of the alkaline earth metal on the support material.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: October 17, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Daniel Peter DePuccio, Kevin Charles Kistler, Dongxia Liu
  • Patent number: 11745173
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising a first platinum group metal (PGM) component and a first PGM support material, wherein the first catalytic region comprises up to 5 wt. % Sn.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: September 5, 2023
    Assignees: Johnson Matthey Public Limited Company, Johnson Matthey (Shanghai) Chemicals Limited
    Inventors: Hongyu Ji, Wataru Kurashige, Shuhei Nagaoka, Dongsheng Qiao, Zhou Shang, Xiaorui Zhang
  • Patent number: 11712685
    Abstract: The invention relates to a catalytic article comprising a substrate having an inlet and an outlet; a first coating comprising a blend of: (1) platinum on a support, and (2) a first SCR catalyst comprising a Cu- and Mn-exchanged molecular sieve; and a second coating comprising a second SCR catalyst; wherein the support comprises at least one of a zeolite or a SiO2-Al2O3 mixed oxide. The platinum may be fixed on the support in solution.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: August 1, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Yannick Bidal, Hai-Ying Chen, Joseph Fedeyko, Neil Greenham, Matthew Harris, Jing Lu
  • Patent number: 11654425
    Abstract: A method of coating a substrate with a washcoat is disclosed. The method comprises engaging the substrate with a headset of a substrate coating apparatus so as to locate an upper surface of the substrate below a washcoat showerhead of the substrate coating apparatus; and discharging a washcoat out of the washcoat showerhead towards the upper surface of the substrate; and drawing the washcoat through the substrate by applying a suction force to a lower surface of the substrate.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: May 23, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Neil Burgess, Christopher Hayton, Craig Thomson
  • Patent number: 11656212
    Abstract: The present invention relates to a method and system for measuring total chloride content in a process product stream. In particular, the present invention relates to a method of measuring hydrogen chloride and organochloride content, in situ, for a gaseous refinery process product stream. This method allows for measurement of hydrogen chloride and organochloride content in a single test method, which allows for optimised performance and maintenance schedules for chloride guard beds used within the refinery process.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: May 23, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Sravan Pappu, Michelle Taylor Wilson
  • Patent number: 11649258
    Abstract: The present invention provides a palladium(II) complex of formula (1). R12, m, and X are described in the specification. The invention also provides a process for the preparation of the complex, and its use in carbon-carbon and carbon-heteroatom coupling reactions.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: May 16, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Thomas Colacot, Ruishan Chow, Andrew Jon DeAngelis
  • Patent number: 11642658
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first platinum group metal (PGM) component, wherein the first PGM component comprises PGM nanoparticles, wherein the PGM nanoparticles have an average particle size of about 1 to about 20 nm with a standard deviation (SD) no more than 1 nm.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: May 9, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Kyoji Kitamoto, Shuhei Nagaoka, Daisuke Yokota
  • Patent number: 11642655
    Abstract: A catalytic article for treating exhaust gas comprising: a first catalytic region beginning at the inlet end and extending for less than the axial length L, wherein the first catalytic region comprises a first palladium component and a first oxygen storage capacity (OSC) material comprising ceria; a second catalytic region beginning at the outlet end and extending for less than the axial length L, wherein the second catalytic region comprises a second palladium component and a second OSC material comprising ceria; a third catalytic region beginning at the outlet end and extending for less than the axial length L, wherein the third catalytic region comprises a third rhodium component and a third OSC material comprising ceria; wherein at least a portion of the first catalytic region is not covered by the second catalytic region and/or the third catalytic region; and wherein (a) the ceria amount in the first catalytic region is less than 50% of the total ceria amount in the first, second, and third catalytic reg
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: May 9, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Takeshi Kadono, Kenji Tanikawa
  • Patent number: 11639867
    Abstract: An apparatus for determining the identity, location, or level of one or more material phases or the location of an interface between two material phases within a defined volume having, a linear array of units configured to generate and detect electromagnetic radiation; an elongate enclosure containing the array of units, being at least partially transparent to the electromagnetic radiation generated by the units; the apparatus being configured to be at least partially submerged within the one or more material phases within the defined volume, the linear array of units being configured to generate transmission signals through the at least partially transparent elongate enclosure to the one or more material phases surrounding the enclosure at locations along the length of the enclosure, and to receive return signals through the elongate enclosure at locations along the length of the enclosure from the one or more material phases surrounding the enclosure.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: May 2, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Graham Barker, Carl Robert Tipton, Daniel James Whiting
  • Patent number: 11634335
    Abstract: The present invention provides an iron-loaded aluminosilicate zeolite having a maximum pore opening defined by eight tetrahedral atoms and having the framework type CHA, AEI, AFX, ERI or LTA, wherein the iron (Fe) is present in a range of from about 0.5 to about 5.0 wt. % based on the total weight of the iron-loaded aluminosilicate zeolite, wherein an ultraviolet-visible absorbance spectrum of the iron-loaded synthetic aluminosilicate zeolite comprises a band at approximately 280 nm, wherein a ratio of an integral, peak-fitted ultraviolet-visible absorbance signal measured in arbitrary units (a.u.) for the band at approximately 280 nm to an integral peak-fitted ultraviolet-visible absorbance signal measured in arbitrary units (a.u.) for a band at approximately 340 nm is >about 2.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: April 25, 2023
    Assignees: Johnson Matthey Public Limited Company, Johnson Matthey Catalysts (Germany) Gmbh
    Inventors: Juergen Bauer, John Leonello Casci, Ralf Dotzel, Joerg Muench, Ralitsa Purova, Wilhelm Schwieger, Ameen Shahid, Selvam Thangaraj, Tobias Weissenberger
  • Patent number: 11624329
    Abstract: Disclosed are methods and systems for monitoring a diesel generator system that includes a DPF filter in order to provide a highly efficient approach for monitoring the status of a DPF filter in order to determine if a regeneration is required. The methods and systems not only permit the ongoing determination of when a regeneration is appropriate in order to prevent excessive engine backpressure, but also accomplish this objective in a manner that reduces fuel consumption over the course of engine use.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: April 11, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Robert Paul Bono, Anthony Ferraro, Marc Jayme Rost
  • Patent number: 11618014
    Abstract: A method of coating a substrate with a foam is described. The method comprises: (a) introducing a foam into a substrate comprising a plurality of channels through open ends of the channels at a first end of the substrate; and (b) applying at least one of (i) a vacuum to open ends of the channels at a second end of the substrate and (ii) a pressure to the open ends of the channels at the first end of the substrate; wherein the foam comprises a particulate material, and wherein the foam is particle stabilized.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: April 4, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Cecilia Bernadini, Thomas Campbell, Guy Richard Chandler, Christopher Daly, Katharine Ann Hardstone, Thomas Hotchkiss, David Thompsett
  • Patent number: 11614013
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising a first platinum group metal (PGM) component and a first oxygen storage capacity (OSC) material, wherein the first OSC material has a fresh specific surface area (SSA) of at least 10 m2/g; and wherein the first OSC material has an SSA difference of no more than 30 m2/g between the fresh first OSC material and the aged first OSC material.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: March 28, 2023
    Assignees: Johnson Matthey Public Limited Company, Johnson Matthey (Shanghai) Chemicals Limited
    Inventors: Hai-Ying Chen, Hongyu Ji, Dongsheng Qiao, Eric Tyo, Takashi Yamada, Xiang Zheng
  • Patent number: 11602736
    Abstract: Methods and compositions related to a selective catalytic reduction catalyst comprising iron and vanadium, wherein the vanadium is present as (1) one or more vanadium oxides, and (2) metal vanadate of the form FexMyVO4 where x=0.2 to 1 and y=1?x, and where M comprises one or more non-Fe metals when y>0.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: March 14, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Zuharia Arshad, Kaneshalingam Arulraj, Guy Chandler, Rainer Leppelt, Andrew Newman, Paul Phillips, Oliver Rowe, Christopher Smith, Nicholas Spencer, Isabel Tingay, Rob Walker, Oliver Hemming, Agnes Raj
  • Patent number: 11590482
    Abstract: Provided is a catalytic washcoat having a catalyst component and an alumina binder, wherein the catalyst component includes an aluminosilicate molecular sieve having a beta (BEA) and/or chabazite (CHA) framework, and about 1 to about 10 weight percent of a base metal component comprising iron and/or copper, wherein said weight percent is based on the weight of the aluminosilicate molecular sieve.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: February 28, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Stuart David Reid, Alexander Nicholas Michael Green, Guy Richard Chandler
  • Patent number: 11577903
    Abstract: A packaging film is described comprising at least one polymer film layer in which particles of a small-pore or a medium-pore palladium-doped zeolite are dispersed. Such films are of particular utility for the adsorption of volatile organic compounds, such as those originating from organic matter.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: February 14, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Andrew William John Smith, Andrew Cornish, Han Xu
  • Patent number: 11571679
    Abstract: A passive NOx adsorber is disclosed. The passive NOx adsorber is effective to adsorb NOx at or below a low temperature and release the adsorbed NOx at temperatures above the low temperature. The passive NOx adsorber comprises a noble metal and a molecular sieve having an LTL Framework Type. The invention also includes an exhaust system comprising the passive NOx adsorber, and a method for treating exhaust gas from an internal combustion engine utilizing the passive NOx adsorber.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: February 7, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Jillian Elaine Collier, Sanyuan Yang
  • Patent number: 11559788
    Abstract: The problem to be solved by the present invention is to provide an oxygen storage and release material comprising a ceria-zirconia-based complex oxide improved in ability to remove HC and NOx and a three-way catalyst able to reduce an amount of NOx emission. Further, to solve this problem, an oxygen storage and release material comprising a ceria-zirconia-based complex oxide containing Gd2O3 in 0.1 mol % or more and less than 20 mol % and having an ion conductivity of 2×10?5 S/cm or more at 400° C. is provided. Further, in addition to the above, an oxygen storage and release material having a molar ratio of cerium and zirconium of 0.2 or more and 0.6 or less by cerium/(cerium+zirconium) and an speed of oxygen storage and release “?t50” of 20.0 seconds or more or amount of oxygen storage and release of 300 ?mol-O2/g or more etc. was obtained.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: January 24, 2023
    Assignees: NIPPON DENKO CO., LTD., JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventors: Keigo Aihara, Tomoharu Itoh, Hirofumi Konno, Shuhei Nagaoka, Takashi Yamada
  • Patent number: 11555733
    Abstract: Provided herein is an apparatus for determining a vertical density profile of a multi-layered fluid column including at least two different liquids, the apparatus comprising a plurality of measurement modules that form a vertical array of measurement modules; wherein each measurement module comprises: a support arm mounted to the elongate vertical support member and extending outwardly from the elongate vertical support member; a displacer carried on the support arm; and a force measurement device configured to measure a force attributable to a mass of the displacer mediated by a buoyancy of the displacer in the fluid column, wherein the plurality of measurement modules have a data connection to a data processing unit that is configured to process the measurement data from the plurality of measurement modules and generate a level or density profile of the fluid column.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: January 17, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventor: Oliver John Beckett