Patents Assigned to Johnson Matthey Public Limited Company
  • Patent number: 11207667
    Abstract: A vehicular exhaust filter (2) comprising a porous substrate having an inlet face and an outlet face with the porous substrate comprising inlet channels extending from the inlet face and outlet channels extending from the outlet face is disclosed. The inlet channels and the outlet channels are separated by a plurality of filter walls having a porous structure. The vehicular exhaust filter (2) is loaded with a refractory powder having a tapped density before loading of less than 0.10 g/cm3 and the vehicular exhaust filter has a mass loading of the refractory powder of less than 10 g/l.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: December 28, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Peter Bellham, Andrew Chiffey, Lucy Clowes, Thomas Hotchkiss, David Marvell, John Turner, Sarah Warren
  • Patent number: 11207666
    Abstract: A transition-metal-CHA molecular sieve catalyst and mixed-template synthesis procedure are disclosed.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: December 28, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Alejandra Rivas-Cardona, Joseph Michael Fedeyko, Hai-Ying Chen
  • Patent number: 11207642
    Abstract: The present invention provides catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: December 28, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: John Goodwin, Sarah Warren
  • Patent number: 11203958
    Abstract: A catalytic wall-flow monolith filter having three-way catalytic activity for use in an emission treatment system of a positive ignition internal combustion engine comprising a porous filter substrate having a first face and a second face defining a longitudinal direction there between and first and second pluralities of channels extending in the longitudinal direction, wherein the first plurality of channels is open at the first face and closed at the second face and the channels of the first plurality of channels are defined in part by channel wall surfaces, wherein the second plurality of channels is open at the second face and closed at the first face and the channels of the second plurality of channels are defined in part by channel wall surfaces and wherein channel walls between the channel wall surfaces of the first plurality of channels and the channel wall surfaces of the second plurality of channels are porous, wherein a first on-wall coating comprising catalytic material having a layer thickness is
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: December 21, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Lucy Clowes, Oliver Destecroix, John Benjamin Goodwin, Michael Anthony Howard, Fezile Lakadamyali, Sarah Frances Lockett, Paul Millington, Chris Robson
  • Patent number: 11198116
    Abstract: To be able to produce an SCR catalyst (2), in particular one having a zeolite fraction (Z) as catalytically active fraction, in a reliable process and at the same time achieve good catalytic activity of the catalyst (2), an inorganic binder fraction (B) which is catalytically inactive in the starting state and has been treated to develop catalytic activity is mixed into a catalyst composition (4). The inorganic binder component for the binder fraction (B) is, in the starting state, preferably porous particles (10), in particular diatomaceous earth, which display mesoporosity. To effect catalytic activation, the individual particles (10) are either coated with a catalytically active layer (12) or transformed into a catalytically active zeolite (14) with maintenance of the mesoporosity.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: December 14, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Juergen Bauer, Ralf Dotzel, Joerg Werner Muench
  • Patent number: 11198094
    Abstract: An ammonia slip catalyst having an SCR catalyst and an oxidation catalyst comprising at least two metals, each of which is selected from a specific group, and a substrate upon which at least oxidation catalyst is located is described. The ammonia slip catalyst can have dual layers, with one of the layers containing an SCR catalyst, a second layer containing the oxidation catalyst with comprises at least two metals, each of which is selected from a specific group, and the ammonia slip catalyst does not contain a platinum group metal. Methods of making and using the ammonia slip catalyst to reduce ammonia slip are described.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: December 14, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Paul Joseph Andersen, Kevin Doura
  • Patent number: 11192793
    Abstract: A method for modifying the surface of a molecular sieve, comprising reacting a molecular sieve with an aminosilane, wherein the reaction is carried out in an aqueous solvent. A modified molecular sieve obtained by the method is also described.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: December 7, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: John Kilmartin, Ashwin Sankaran, David Thompsett
  • Patent number: 11192096
    Abstract: Provided are a novel form of AEI zeolite, a novel synthesis technique for producing pure phase AEI zeolite, a catalyst comprising the AEI zeolite in combination with a metal, and methods of using the same. The AEI aluminosilicate zeolite has a cuboid morphology and a silica-to-alumina ratio of 20 to 50.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: December 7, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Hai-Ying Chen, Joseph Fedeyko, Raul Francisco Lobo, Trong Dinh Pham, Sanyuan Yang
  • Patent number: 11187126
    Abstract: An exhaust gas treatment system (1) comprises a catalyst article (5) for the treatment of an exhaust gas, the catalyst article (5) comprising a non-metallic substrate (20) comprising a plurality of catalytically-active transition-metal-doped iron oxide magnetic particles (45), and an inductive heater (70) for inductively heating the plurality of catalytically-active magnetic particles by applying an alternating magnetic field.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: November 30, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: John Kilmartin, Andrea Eva Pascui, Kerry Simmance
  • Patent number: 11185854
    Abstract: A cold start catalyst is disclosed. The cold start catalyst is effective to adsorb NOx and hydrocarbons (HC) at or below a low temperature and to covert and release the adsorbed NOx and HC at temperatures above the low temperature. The cold start catalyst comprises a molecular sieve catalyst and a supported platinum group metal catalyst. The molecular sieve catalyst consists essentially of a noble metal and a molecular sieve. The supported platinum group metal catalyst comprises one or more platinum group metals and one or more inorganic oxide carriers. The invention also includes an exhaust system comprising the cold start catalyst, and a method for treating exhaust gas from an internal combustion engine utilizing the cold start catalyst.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: November 30, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Raj Rao Rajaram, Hai-Ying Chen, Dongxia Liu
  • Patent number: 11179706
    Abstract: A lean NOx trap catalyst and its use in an emission treatment system for internal combustion engines is disclosed. The lean NOx trap catalyst comprises a first layer for storing nitrogen oxides (NOx) under lean exhaust gas conditions and releasing and/or reducing stored NOx during rich exhaust gas conditions, and a second layer, said second layer comprising a first zone for oxidizing carbon monoxide (CO) and/or hydrocarbons (HC), and a second zone for oxidizing nitric oxide (NO), and a substrate having an inlet end and an outlet end.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: November 23, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Gregory Gregori, Paul Phillips, Julian Pritzwald-Stegmann, Stuart David Reid, Wolfgang Strehlau
  • Publication number: 20210355851
    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: Application
    Filed: November 6, 2018
    Publication date: November 18, 2021
    Applicants: NIPPON DENKO CO., LTD., JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventors: Keigo AIHARA, Tomoharu ITOH, Hirofumi KONNO, Shuhei NAGAOKA, Takashi YAMADA
  • Patent number: 11167246
    Abstract: An oxidation catalyst for treating an exhaust gas from a diesel engine comprises: a first washcoat region for oxidising carbon monoxide (CO) and hydrocarbons (HCs), wherein the first washcoat region comprises a first platinum group metal (PGM) and a first support material, and wherein the first washcoat region does not comprise manganese or an oxide thereof; a second washcoat region for oxidising nitric oxide (NO), wherein the second washcoat region comprises platinum (Pt), manganese (Mn) and a second support material comprising a refractory metal oxide, which is silica-alumina or alumina doped with silica in a total amount of 0.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: November 9, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Andrew Francis Chiffey, John Benjamin Goodwin, James Leeland, Francois Moreau
  • Patent number: 11171251
    Abstract: The invention relates to a process for forming a conductive track or coating on a substrate, comprising: applying a conductive paste to the substrate, the conductive paste comprising a solids portion dispersed in an organic medium, the solids portion comprising particles of electrically conductive material and an inorganic particle mixture comprising substantially crystalline particles of two or more different metal compounds, wherein the inorganic particle mixture includes substantially crystalline particles of a tellurium compound and is substantially lead free; and firing the applied conductive paste on the surface of the substrate with a firing profile in which the temperature of the surface of the applied conductive paste exceeds 500° C. for a period of two minutes or less. The invention further relates to a substrate having a conductive track or coating formed thereon.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: November 9, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Beatriz Cela Greven, Jonathan Charles Shepley Booth, Nicholas Nowak, Simon Johnson, Tobias Droste
  • Patent number: 11141697
    Abstract: A three-way catalyst article is provided for the treatment of exhaust gas from a positive ignition engine, the catalyst article comprising: a substrate having a first layer provided thereon, wherein a second layer is provided on the first layer, wherein the first layer comprises a first metal and a first alumina, and wherein the second layer comprises a second metal and a second alumina, wherein either (i) the first metal is Pd and the second metal is Rh; or (ii) the first metal is Rh and the second metal is Pd; and wherein at least one of the first and second aluminas comprises theta alumina.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: October 12, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Hai-Ying Chen, Eric Tyo
  • Patent number: 11136883
    Abstract: A tracer material for tracing fluid flows from a hydrocarbon reservoir. The tracer material is a particulate tracer material including a plurality of particles of a porous particulate solid material, the particles having pores containing a tracer composition characterised in that a retaining material overlies the tracer composition in at least some of the pores. The retaining material retards the release of the tracer material so that the tracer is released at a more constant rate over a longer period than in the absence of the retaining material.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: October 5, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Neil Borrell, Aidan David Brierley
  • Patent number: 11136314
    Abstract: The present disclosure is directed to a crystalline, hydrated form of afatinib dimaleate having about 2 to 3 molecules of water, designated as Form Z, a pharmaceutical composition comprising the form, its method of use for treating a patient, and process for its preparation.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: October 5, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventor: Ronald Mueller
  • Patent number: 11117097
    Abstract: A NOx adsorber catalyst composition, a NOx adsorber catalyst and its use in an emission treatment system for internal combustion engines, is disclosed. The NOx adsorber catalyst composition a support material and one or more platinum group metals disposed on the support material, wherein the support material comprises a NOx storage enhancer.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: September 14, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Desiree Duran Martin, Raj Rajaram
  • Patent number: 11103858
    Abstract: A NOx absorber catalyst for treating an exhaust gas from a lean burn engine. The NOx absorber catalyst comprises a molecular sieve catalyst comprising a noble metal and a molecular sieve, wherein the molecular sieve contains the noble metal; an oxygen storage material for protecting the molecular sieve catalyst; and a substrate having an inlet end and an outlet end.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: August 31, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Andrew Francis Chiffey, Jack Corps, Laura Mitchell-Downie, Francois Moreau, Matthew O'Brien
  • Patent number: 11103855
    Abstract: A method of preparing a catalyst composition for producing a stable ratio of NO2 to NO in an exhaust system of a compression ignition engine is described. The method comprises: (i) preparing a first composition comprising a platinum (Pt) compound disposed or supported on a support material; (ii) preparing a second composition by reducing the platinum (Pt) compound to platinum (Pt) with a reducing agent; and (iii) heating the second composition to at least 650° C.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: August 31, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Andrew Francis Chiffey, Daniel Hatcher, Francois Moreau, Paul Richard Phillips, Freyja Woods