Patents by Inventor Guy Richard Chandler
Guy Richard Chandler 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).
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Publication number: 20240058751Abstract: The present invention relates to a catalyst composition. More particularly, the present invention relates to a catalyst composition comprising a low SAR zeolite, copper in an amount of at least 2 wt %; and a rare earth element. The present invention also relates to a method for the manufacture of a catalyst composition. The present invention further relates to a catalyst article comprising a catalyst composition and a method for the treatment of an exhaust gas which comprises contacting an exhaust gas with a catalyst article comprising a catalyst composition.Type: ApplicationFiled: July 20, 2023Publication date: February 22, 2024Inventors: Kaneshalingam ARULRAJ, Daniel Robert AVIS, Guy Richard CHANDLER, Alexander Nicholas Michael GREEN, Matthew Eben HARRIS, Oliver HEMMING, Carmelo IACONO, Alanna Susan MURPHY, Paul Richard PHILLIPS, Maria Pia RUGGERI
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Patent number: 11826739Abstract: The present disclosure relates to a method for forming a catalyst article comprising: (a) forming a plastic mixture having a solids content of greater than 50% by weight by mixing together a crystalline small pore or medium pore molecular sieve in an H+ or NH4+ form, an insoluble active metal precursor, an inorganic matrix component, an organic auxiliary agent, an aqueous solvent and optionally inorganic fibres; (b) moulding the plastic mixture into a shaped article; and (c) calcining the shaped article to form a solid catalyst body. The present disclosure further relates to a catalyst article, particularly a catalyst article which is suitable for use in the selective catalytic reduction of nitrogen oxides, and to an exhaust system.Type: GrantFiled: April 30, 2021Date of Patent: November 28, 2023Inventors: Nikki Jane Amos-Reichert, Daniel Avis, Juergen Bauer, Yannick Bidal, Guy Richard Chandler, Alexander Nicholas Michael Green, Neil Greenham, Matthew Eben Harris, Sofia Lopez-Orozco, Joerg Werner Muench, Paul Richard Phillips, Irene Piras
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Publication number: 20230191379Abstract: An emissions control device for treating or removing pollutants from an exhaust gas produced by an internal combustion engine is disclosed. The emissions control device comprises a solid foam layer disposed on a substrate, wherein the solid foam layer disposed on a substrate has an open cell structure and comprises a particulate material which is a catalytic material comprising a catalytically active metal supported on a support material.Type: ApplicationFiled: February 17, 2023Publication date: June 22, 2023Inventors: Cecilia BERNARDINI, Thomas CAMPBELL, Guy Richard CHANDLER, Christopher DALY, Katharine Ann HARDSTONE, Thomas HOTCHKISS, David THOMPSETT
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Publication number: 20230143941Abstract: A three-way catalyst article with improved ammonia emission control, and its use in an exhaust system for gasoline engines, is disclosed. The catalyst article for treating exhaust gas from a gasoline engine comprising: a substrate comprising an inlet end, an outlet end with an axial length L; a first catalytic region beginning at the inlet end, wherein the first catalytic region comprises a first zeolite; and a second catalytic region beginning at the outlet end, wherein the second catalytic region comprises a second platinum group metal (PGM) component, a second oxygen storage capacity (OSC) material, and a second inorganic oxide; wherein the second PGM component is selected from the group consisting of palladium, platinum, rhodium and a combination thereof.Type: ApplicationFiled: October 27, 2022Publication date: May 11, 2023Inventors: Guy Richard CHANDLER, Sean CONTE, Vincent FERRAND, Michael HOWARD, Shuhei NAGAOKA, Alexis POWELL, Xiaorui ZHANG
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Patent number: 11618014Abstract: 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: GrantFiled: April 10, 2017Date of Patent: April 4, 2023Assignee: Johnson Matthey Public Limited CompanyInventors: Cecilia Bernadini, Thomas Campbell, Guy Richard Chandler, Christopher Daly, Katharine Ann Hardstone, Thomas Hotchkiss, David Thompsett
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Publication number: 20230076492Abstract: A method of forming an inorganic oxide coating on a monolith article is disclosed. The coated monolith article is suitable for the treatment of an exhaust gas. The method 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: ApplicationFiled: August 17, 2022Publication date: March 9, 2023Inventors: Kaneshalingam ARULRAJ, Peter BELLHAM, Alexander DE BRUIN, Guy Richard CHANDLER, Chris CORRIGAN, David MARVELL, John TURNER
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Publication number: 20230067575Abstract: The disclosure relates to a method of forming a coated monolith article for the treatment of an exhaust gas. The method comprises the steps of: retaining a porous monolith article in a coating apparatus, the porous monolith article comprising a plurality of channels for the passage of an exhaust gas, each channel having a gas-contacting surface; depositing cementitious particles as a dry powder onto the gas-contacting surface of at least some of the channels; and reacting the cementitious particles with a liquid or gaseous reagent in situ within the porous monolith article to provide the coated monolith article.Type: ApplicationFiled: August 3, 2022Publication date: March 2, 2023Inventors: Kaneshalingam ARULRAJ, Peter BELLHAM, Guy Richard CHANDLER, Andrew CHIFFEY, Kieran COLE, Chris CORRIGAN, David MARVELL, Francois MOREAU, John TURNER
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Patent number: 11590482Abstract: 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: GrantFiled: March 11, 2019Date of Patent: February 28, 2023Assignee: Johnson Matthey Public Limited CompanyInventors: Stuart David Reid, Alexander Nicholas Michael Green, Guy Richard Chandler
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Publication number: 20220072514Abstract: A method of treating an exhaust gas from an internal combustion engine comprising contacting the exhaust gas with a lean NOx trap catalyst is disclosed. The lean NOx trap catalyst comprises a first layer and a second layer.Type: ApplicationFiled: November 16, 2021Publication date: March 10, 2022Inventors: Guy Richard CHANDLER, Paul Richard PHILLIPS, Jonathan RADCLIFFE, Stuart David REID
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Patent number: 11225895Abstract: A catalyst article for treating a flow of a combustion exhaust gas comprises: a catalytically active substrate comprising one or more channels extending along an axial length thereof through which, in use, a combustion exhaust gas flows, the one or more channels having a first surface for contacting a flow of combustion exhaust gas; wherein the substrate is formed of an extruded vanadium-containing SCR catalyst material, wherein a first layer is disposed on at least a portion of the first surface, wherein the first layer comprises a washcoat of an ammonia slip catalyst composition comprising one or more platinum group metals supported on a particulate metal oxide support material, and wherein a layer comprising a washcoat of SCR catalyst composition is disposed on a surface in the one or more channels, wherein at least the portion of the first surface on which the first layer is disposed comprises a compound of copper, iron, cerium or zirconium or a mixture of any two or more thereof.Type: GrantFiled: March 22, 2019Date of Patent: January 18, 2022Assignee: Johnson Matthey Public Limited CompanyInventors: Kaneshalingam Arulraj, Guy Richard Chandler, Rainer Leppelt, Andrew Newman
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Publication number: 20210379576Abstract: The present disclosure relates to a method for forming a catalyst article comprising: (a) forming a slurry having a solids content of up to 50 wt % by mixing together at least the following components a crystalline molecular sieve in an H+ or NH4+ form, an insoluble active metal precursor and an aqueous solvent at a temperature in the range 10 to 35° C.; (b) coating a substrate with the slurry formed in step (a); and (c) calcining the coated substrate formed in step (b) to form a catalyst layer on the substrate. The present disclosure further relates to a catalyst article, particularly a catalyst article which is suitable for use in the selective catalytic reduction of nitrogen oxides, and to an exhaust system.Type: ApplicationFiled: May 26, 2021Publication date: December 9, 2021Inventors: Nikki Jane AMOS-REICHERT, Daniel AVIS, Juergen BAUER, Yannick BIDAL, Guy Richard CHANDLER, Alexander Nicolas Michael GREEN, Neil GREENHAM, Matthew Eben HARRIS, Sofia LOPEZ-OROZCO, Joerg MUENCH, Paul Richard Phillips, Irene PIRAS
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Publication number: 20210339234Abstract: The present disclosure relates to a method for forming a catalyst article comprising: (a) forming a plastic mixture having a solids content of greater than 50% by weight by mixing together a crystalline small pore or medium pore molecular sieve in an H+ or NH4+ form, an insoluble active metal precursor, an inorganic matrix component, an organic auxiliary agent, an aqueous solvent and optionally inorganic fibres; (b) moulding the plastic mixture into a shaped article; and (c) calcining the shaped article to form a solid catalyst body. The present disclosure further relates to a catalyst article, particularly a catalyst article which is suitable for use in the selective catalytic reduction of nitrogen oxides, and to an exhaust system.Type: ApplicationFiled: April 30, 2021Publication date: November 4, 2021Inventors: Nikki Jane AMOS-REICHERT, Daniel AVIS, Juergen BAUER, Yannick BIDAL, Guy Richard CHANDLER, Alexander Nicholas Michael GREEN, Neil GREENHAM, Matthew Eben HARRIS, Sofia LOPEZ-OROZCO, Joerg Werner MUENCH, Paul Richard PHILLIPS, Irene PIRAS
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Patent number: 11000836Abstract: SCR-active molecular-sieve based catalysts with improved low-temperature performance are made by heating a molecular-sieve in a non-oxidizing atmosphere with steam (hydrothermal treatment), or in a reducing atmosphere without steam (thermal treatment), at a temperature in the range of 600-900° C. for a time period from 5 minutes to two hours. The resulting SCR-active iron-containing molecular sieves exhibit a selective catalytic reduction of nitrogen oxides with NH3 or urea at 250° C. that is at least 50% greater than if the iron-containing molecular-sieve were calcined at 500° C. for two hours without performing the hydrothermal or thermal treatment.Type: GrantFiled: April 24, 2019Date of Patent: May 11, 2021Inventors: Guy Richard Chandler, Jillian Elaine Collier, Alexander Nicholas Michael Green, Desiree Duran-Martin, Paul Richard Phillips, Raj Rao Rajaram, Stuart David Reid
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Patent number: 10974228Abstract: 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, a second layer, and a third layer.Type: GrantFiled: March 28, 2018Date of Patent: April 13, 2021Assignee: Johnson Matthey Public Limited CompanyInventors: Guy Richard Chandler, Gregory Richard Gregori, Paul Richard Phillips, Jonathan David Radcliffe, Stuart Reid
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Patent number: 10808585Abstract: A catalytic wall-flow monolith filter for use in an emission treatment system comprises a wall flow substrate having a first and a second face, and first and second pluralities of channels. The first plurality of channels is open at the first face and closed at the second face. The second plurality of channels is open at the second face and closed at the first face. The monolith filter comprises a porous substrate having a first zone extending from the first face towards the second face and a second zone extending from the second face towards the first face. Each of the zones are less that filter length. A first catalytic material is distributed throughout the first zone of the porous substrate, and a second catalytic material covers at least a portion of the surfaces in the second zone of the porous substrate and is not distributed throughout the porous substrate.Type: GrantFiled: October 26, 2017Date of Patent: October 20, 2020Assignee: Johnson Matthey Public Limited CompanyInventors: Guy Richard Chandler, Keith Anthony Flanagan, Paul Richard Phillips, David Marvell
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Patent number: 10603655Abstract: 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, a second layer, and a third layer.Type: GrantFiled: March 28, 2018Date of Patent: March 31, 2020Assignee: Johnson Matthey Public Limited CompanyInventors: Guy Richard Chandler, Nuria Lastra-Calvo, Paul Richard Phillips, Jonathan Radcliffe, Stuart David Reid, Byron Truscott
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Patent number: 10596550Abstract: 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, a second layer, and a third layer.Type: GrantFiled: March 28, 2018Date of Patent: March 24, 2020Assignee: Johnson Matthey Public Limited CompanyInventors: Guy Richard Chandler, Paul Richard Phillips, Stuart David Reid, Byron Truscott
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Patent number: 10532344Abstract: A NOx trap catalyst is disclosed. The NOx trap catalyst comprises a noble metal, a NOx storage component, a support, and a first ceria-containing material. The first ceria-containing material is pre-aged prior to incorporation into the NOx trap catalyst, and may have a surface area of less than 80 m2/g. The invention also includes exhaust systems comprising the NOx trap catalyst, and a method for treating exhaust gas utilizing the NOx trap catalyst.Type: GrantFiled: February 12, 2019Date of Patent: January 14, 2020Assignee: Johnson Matthey Public Limited CompanyInventors: Guy Richard Chandler, Paul Richard Phillips, Stuart David Reid, Wolfgang Strehlau, Daniel Swallow
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Patent number: 10443472Abstract: An extruded honeycomb catalyst for nitrogen oxide reduction according to the selective catalytic reduction (SCR) method in exhaust gases from motor vehicles includes an extruded active carrier in honeycomb form having a first SCR catalytically active component and with a plurality of channels through which the exhaust gas flows during operation, and a washcoat coating having a second SCR catalytically active component being applied to the extruded body, wherein the first SCR catalytically active component and the second SCR catalytically active component are each independently one of: (i) vanadium catalyst with vanadium as catalytically active component; (ii) mixed-oxide catalyst with one or more oxides, in particular those of transition metals or lanthanides as catalytically active component; and (iii) an Fe- or a Cu-zeolite catalyst.Type: GrantFiled: October 20, 2017Date of Patent: October 15, 2019Assignee: Johnson Matthey Public Limited CompanyInventors: Guy Richard Chandler, Neil Robert Collins, Ralf Dotzel, Joerg Muench, Paul Richard Phillips, Gudmund Smedler, Andrew Peter Walker
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Publication number: 20190301334Abstract: A catalyst article for treating a flow of a combustion exhaust gas comprises: a catalytically active substrate comprising one or more channels extending along an axial length thereof through which, in use, a combustion exhaust gas flows, the one or more channels having a first surface for contacting a flow of combustion exhaust gas; wherein the substrate is formed of an extruded vanadium-containing SCR catalyst material, wherein a first layer is disposed on at least a portion of the first surface, wherein the first layer comprises a washcoat of an ammonia slip catalyst composition comprising one or more platinum group metals supported on a particulate metal oxide support material, and wherein a layer comprising a washcoat of SCR catalyst composition is disposed on a surface in the one or more channels, wherein at least the portion of the first surface on which the first layer is disposed comprises a compound of copper, iron, cerium or zirconium or a mixture of any two or more thereof.Type: ApplicationFiled: March 22, 2019Publication date: October 3, 2019Inventors: Kaneshalingam Arulraj, Guy Richard Chandler, Rainer Leppelt, Andrew Newman