Patents Assigned to Johnson Matthey
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Patent number: 12290794Abstract: A shaped sorbent is described comprising a plurality of layers of photopolymerised resin containing particles of a sorbent material. The shaped sorbent may be used as a getter for use in gettering one or more contaminants in a sealed enclosure.Type: GrantFiled: June 5, 2020Date of Patent: May 6, 2025Assignee: Johnson Matthey Public Limited CompanyInventors: Alan Bootland, David Davis, Jonathan Edgar, Jonathon Higgins
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Patent number: 12283697Abstract: The present invention provides a method of preparing a catalyst material, said catalyst material comprising a support material and an electrocatalyst dispersed on the support material: said method comprising the steps: i) providing a support material; then ii) 10 depositing a silicon oxide precursor on the support material; then iii) carrying out a heat treatment step to convert the silicon oxide precursor to silicon oxide; then iv) depositing said electrocatalyst or a precursor of said electrocatalyst on the support material; then v) removal of at least some of the silicon oxide.Type: GrantFiled: July 6, 2021Date of Patent: April 22, 2025Assignee: Johnson Matthey Hydrogen Technologies LimitedInventors: Alejandro Martinez Bonastre, Geoffrey Spikes
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Patent number: 12275024Abstract: A washcoat showerhead for depositing a washcoat onto a face of a substrate comprises a housing having an inlet for receiving the washcoat, a showerhead plate and a baffle. The housing and showerhead plate define a showerhead cavity with the baffle located within the showerhead cavity. The showerhead plate has a plurality of nozzle apertures for discharging the washcoat towards the face of the substrate. The baffle comprises an impermeable central body and a plurality of arms extending from the impermeable central body, the plurality of arms defining a plurality of flow apertures circumferentially arranged around the impermeable central body.Type: GrantFiled: October 4, 2023Date of Patent: April 15, 2025Assignee: Johnson Matthey Public Limited CompanyInventors: Neil Burgess, Jamie Savage, Craig Thomson
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Patent number: 12263473Abstract: The present invention relates to a process for the liquid phase activation of catalysts. Such activated catalysts have particular utility in hydrogenation of aldehydes to alcohols. As such, the present invention relates to a process for the hydrogenation of aldehydes to alcohols in the presence of a catalyst which has been activated in accordance with the first aspect of the present invention.Type: GrantFiled: September 6, 2019Date of Patent: April 1, 2025Assignee: Johnson Matthey Davy Technologies LimitedInventor: Michael Bainbridge
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Patent number: 12249744Abstract: A catalysed ion-conducting membrane comprising an ion-conducting membrane, an electrocatalyst layer having two opposing faces, and a layer A comprising an ion-conducting material and a carbon containing material, and methods for preparing the catalysed ion-conducting membrane are provided.Type: GrantFiled: May 19, 2023Date of Patent: March 11, 2025Assignee: Johnson Matthey Hydrogen Technologies LimtedInventors: Dash Fongalland, Jonathan Sharman
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Patent number: 12240866Abstract: A compound of formula (I) wherein M is Pd(II) or Ni(II); X is a halide; R1 and R2 are independently organic groups having 1-20 carbon atoms, or R1 and R2 are linked to form a ring structure with the phosphorus atom; R3 is an organic group having 1-20 carbon atoms; provided that R1, R2, R3 are not each phenyl.Type: GrantFiled: August 3, 2020Date of Patent: March 4, 2025Assignee: Johnson Matthey Public Limited CompanyInventors: Rachel Kahan, Mateusz Pitak, Carin Seechurn
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Patent number: 12226764Abstract: A catalyst carrier for insertion in a reactor tube of a tubular reactor, said catalyst carrier comprising: a container for holding catalyst in use, said container having a bottom surface closing the container, and a top surface; a carrier outer wall extending from the bottom surface to the top surface; a seal extending from the container by a distance which extends beyond the carrier outer wall; said carrier outer wall having apertures located below the seal.Type: GrantFiled: July 28, 2023Date of Patent: February 18, 2025Assignee: Johnson Matthey Davy Technologies LimitedInventor: Julian Gray
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Patent number: 12201969Abstract: A method of forming an inorganic oxide coating on a monolith article to produce a coated monolith article suitable for the treatment of an exhaust gas comprises spraying, as a dry particulate aerosol, inorganic particles and a silicone resin to form a coating layer. The present invention also provides an uncalcined porous monolith article for use in forming a monolith article for the treatment of an exhaust gas. The uncalcined monolith article comprises a dry particulate composition comprising inorganic particles and a silicone resin.Type: GrantFiled: August 17, 2022Date of Patent: January 21, 2025Assignee: Johnson Matthey Public Limited CompanyInventors: Kaneshalingam Arulraj, Peter Bellham, Alexander De Bruin, Guy Richard Chandler, Chris Corrigan, David Marvell, John Turner
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Patent number: 12201966Abstract: Catalyst compositions and methods of preparation comprising: exchanging a rare earth element into a molecular sieve; incorporating a promoter metal into the molecular sieve; wherein the rare earth element exchanging step and the promoter metal incorporation step are performed as separate steps.Type: GrantFiled: September 12, 2022Date of Patent: January 21, 2025Assignee: Johnson Matthey Public Limited CompanyInventors: Daniel Robert Avis, Alexander Nicholas Michael Green, Matthew Eben Harris, Oliver Hemming, Loredana Mantarosie, Alanna Susan Murphy, Maria Pia Ruggeri
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Patent number: 12194441Abstract: A catalytic 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 support; a second catalytic region comprising a second PGM component on a support with low ammonia storage and a first SCR catalyst; and wherein the first catalytic region is covered by at least another catalytic region.Type: GrantFiled: December 10, 2020Date of Patent: January 14, 2025Assignee: Johnson Matthey Public Limited CompanyInventors: Alexander Nicholas Green, Neil Greenham, Matthew Eben Harris
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Patent number: 12162816Abstract: Disclosed herein is a method of reducing an aromatic nitro compound. In some embodiments the method comprises the step of contacting an aromatic nitro compound with a catalyst, wherein, the catalyst comprises, a disproportionation agent, and a biocatalyst. Also disclosed is a biocatalyst for use in the method, use of a disproportionation agent, and a biocatalyst, as a catalyst for reducing an aromatic nitro compound, and a kit comprising a disproportionation agent, and a biocatalyst.Type: GrantFiled: December 12, 2019Date of Patent: December 10, 2024Assignee: Johnson Matthey Public Limited CompanyInventors: Serena Bisagni, Amin Bornadel, Beatriz Dominguez, Jacques Lepaih, Ahir Pushpanath, Iustina Slabu, Jason Tedrow, Steven Mennen, Simon Hedley
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Patent number: 12129778Abstract: A system comprising (i) a vehicular compression ignition engine comprising one or more engine cylinders and one or more electronically-controlled fuel injectors therefor; (ii) an exhaust line for the engine comprising: a first emissions control device comprising a first honeycomb substrate, which comprises a hydrocarbon adsorbent component; and a second emissions control device comprising an electrically heatable element and a catalysed second honeycomb substrate, which comprises a rhodium-free platinum group metal comprising platinum, wherein the electrically heatable element is disposed upstream from the catalysed second honeycomb substrate and wherein both the electrically heatable element and the catalysed second honeycomb substrate are disposed downstream from the first honeycomb substrate; a third emissions control device, which is a third honeycomb substrate comprising an ammonia-selective catalytic reduction catalyst disposed downstream from the second emissions control device; and one or more temperaType: GrantFiled: September 22, 2023Date of Patent: October 29, 2024Assignee: Johnson Matthey Public Limited CompanyInventors: David Bergeal, Andrew Chiffey, Daniel Hatcher, Francois Moreau, Paul Phillips
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Patent number: 12128392Abstract: A catalyst gauze and gauze pack comprise a knitted catalyst gauze containing a first layer of a first wire material, wherein the first wire material is made from a platinum-rhodium alloy, and wherein the first layer contains an activator in the form of a second wire material which is knitted among the first wire material, and which is made from un-alloyed platinum.Type: GrantFiled: May 20, 2020Date of Patent: October 29, 2024Assignee: Johnson Matthey Public Limited CompanyInventors: Asgar Mohamed Hussein Alibhai, Helen Theresa Goddin
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Patent number: 12095087Abstract: A lithium transition metal phosphate material comprising lithium iron phosphate doped with very precise amounts of aluminium dopant, the material having formula LiyFe1-xAlxPO4, in which 0.8?y?1.2 and 0.0120?x?0.0180. When x is within this range, the capacity of the material can be improved, and good or excellent distribution of aluminium in the lithium metal phosphate is observed.Type: GrantFiled: September 13, 2019Date of Patent: September 17, 2024Assignee: Johnson Matthey PLCInventors: Ludovic Briquet, Maria Rivas-Velazco, Noelia Cabello-Moreno, Mahrez Amri
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Patent number: 12030042Abstract: Provided are a novel form of AFX zeolite, a novel synthesis technique for producing pure phase small pore zeolites, a novel synthesis method for producing a zeolite with an increased Al pair content, a catalyst comprising the AFX zeolite in combination with a metal, and methods of using the same.Type: GrantFiled: April 25, 2022Date of Patent: July 9, 2024Assignee: Johnson Matthey Public Limited CompanyInventors: Hai-Ying Chen, Joseph Fedeyko, Raul Lobo, Nicholas McNamara, Trong Pham
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Patent number: 12024438Abstract: The present invention further provides a method of making an metal-loaded aluminosilicate zeolite having a maximum pore opening defined by eight tetrahedral atoms from pre-existing aluminosilicate zeolite crystallites, wherein the metal is present in a range of from 0.5 to 5.0 wt. % based on the total weight of the metal-loaded aluminosilicate zeolite.Type: GrantFiled: April 29, 2022Date of Patent: July 2, 2024Assignees: Johnson Matthey Public Limited Company, Johnson Matthey Catalysts (Germany) GmbHInventors: Juergen Bauer, John Leonello Casci, Ralf Dotzel, Joerg Muench, Ralitsa Purova, Wilhelm Schwieger, Ameen Shahid, Selvam Thangaraj, Tobias Weissenberger
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Patent number: 12025041Abstract: A close-coupled catalytic article, and its use in an exhaust system for internal combustion engines, is disclosed. The close-coupled catalytic article for the treatment of an exhaust gas comprising: an upstream substrate and a downstream substrate, wherein the upstream substrate is spaced apart from the downstream substrate, wherein the upstream substrate comprises a first three-way catalyst (TWC) composition and the downstream substrate comprises a second TWC composition, the first and second TWC compositions each comprising an oxygen storage component (OSC), wherein a loading of the OSC in the downstream substrate is greater than a loading of the OSC in the upstream substrate and is at least 2.2 g/in3.Type: GrantFiled: February 21, 2020Date of Patent: July 2, 2024Assignee: Johnson Matthey Public Limited CompanyInventors: Hai-Ying Chen, Eric Tyo
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Patent number: 12017982Abstract: A process for the hydroformylation of olefins to aldehydes is disclosed. The process comprises: hydroformylating one or more olefins with hydrogen and carbon monoxide in the presence of a ligand-rhodium catalyst in a reaction zone; recovering a reactor effluent from the reaction zone, the reactor effluent comprising product aldehyde and the ligand-rhodium catalyst; passing the reactor effluent and a strip gas to a vaporiser, wherein the strip gas comprises carbon monoxide and is formed from a recycle strip gas stream and a make-up strip gas stream, wherein the product aldehyde is vaporised into the strip gas in the vaporiser resulting in a vapour mixture, comprising the strip gas and the product aldehyde, and a liquid mixture, comprising the ligand-rhodium catalyst; recovering the liquid mixture and recycling the ligand-rhodium catalyst to the reaction zone; recovering the vapour mixture and separating the product aldehyde from the vapour mixture.Type: GrantFiled: May 29, 2020Date of Patent: June 25, 2024Assignee: Johnson Matthey Davy Technologies LimitedInventors: Fraser Robert Archibald, Robert Arthur Jolly, Maria del Amo Lopez, David Keith Welch
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Patent number: 12011705Abstract: The present invention relates to a method of preparing a catalyst article comprising steps: (a) preparing a washcoat composition by combining at least the following components: a support material comprising a mixed oxide, a mixture of oxides or a molecular sieve comprising (i) alumina and (ii) silica and/or zirconia; a metal oxide sol comprising at least one of titania, silica or zirconia; a liquid medium; (b) applying the washcoat composition to a substrate to form a washcoating; and (c) drying and/or calcining the washcoating; wherein the method further comprises a step of impregnating the support material with a platinum group metal component. The prepared catalyst article may be suitable for the treatment of emissions from an internal combustion engine or a gas turbine, for example, the treatment of carbon monoxide and/or formaldehyde emissions from a natural gas fueled internal combustion engine or gas turbine.Type: GrantFiled: January 7, 2022Date of Patent: June 18, 2024Assignee: Johnson Matthey Public Limited CompanyInventor: Kevin Doura
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Patent number: 11986802Abstract: 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; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first PGM component and a first alumina, wherein the first alumina is doped with a first dopant of at least 5 wt. %, and wherein the first dopant is selected from the group consisting of Zr, Ta, Mo, W, Ti, Nb, and a combination thereof.Type: GrantFiled: August 26, 2022Date of Patent: May 21, 2024Assignee: Johnson Matthey Public Limited CompanyInventors: Shuhei Nagaoka, Xiaorui Zhang