Patents by Inventor Stuart David Reid
Stuart David Reid 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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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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Patent number: 11365660Abstract: A NOx adsorber catalyst and its use in an emission treatment system for internal combustion engines, is disclosed. The NOx adsorber catalyst comprises a first layer consisting essentially of a support material, one or more platinum group metals disposed on the support material, and a NOx storage material.Type: GrantFiled: June 9, 2017Date of Patent: June 21, 2022Assignee: Johnson Matthey Public Limited CompanyInventors: Andrew Armitage, Desiree Duran Martin, Rebecca Maksymowicz, Paul James Millington, Paul Richard Phillips, Raj Rao Rajaram, Stuart David Reid, Daniel Swallow
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Patent number: 11358127Abstract: A NOx adsorber catalyst and its use in an emission treatment system for internal combustion engines, is disclosed. The NOx adsorber catalyst composition comprises a support material, one or more platinum group metals disposed on the support material, and a NOx storage material.Type: GrantFiled: May 4, 2017Date of Patent: June 14, 2022Assignee: Johnson Matthey Public Limited CompanyInventors: Andrew Paul Armitage, Desiree Duran-Martin, Paul James Millington, Paul Richard Phillips, Raj Rao Rajaram, Stuart David Reid, Daniel Swallow
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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: 11179706Abstract: 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: GrantFiled: March 6, 2020Date of Patent: November 23, 2021Assignee: Johnson Matthey Public Limited CompanyInventors: Gregory Gregori, Paul Phillips, Julian Pritzwald-Stegmann, Stuart David Reid, Wolfgang Strehlau
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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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Publication number: 20200282385Abstract: 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: ApplicationFiled: March 6, 2020Publication date: September 10, 2020Inventors: Gregory Gregori, Paul Phillips, Julian Pritzwald-Stegmann, Stuart David Reid, Wolfgang Strehlau
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Publication number: 20200208557Abstract: A NOx adsorber catalyst and its use in an emission treatment system for internal combustion engines, is disclosed. The NOx adsorber catalyst comprises a first layer consisting essentially of a support material, one or more platinum group metals disposed on the support material, and a NOx storage material.Type: ApplicationFiled: February 25, 2020Publication date: July 2, 2020Inventors: Andrew ARMITAGE, Desiree DURAN MARTIN, Rebecca MAKSYMOWICZ, Paul James MILLINGTON, Paul Richard PHILLIPS, Raj Rao RAJARAM, Stuart David REID, Daniel SWALLOW
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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: 10539055Abstract: An exhaust system for treating an exhaust gas from an internal combustion engine is disclosed. The system comprises a modified lean NOx trap (LNT), a urea injection system, and an ammonia-selective catalytic reduction catalyst. The modified LNT comprises a first layer and a second layer. The first layer comprises a NOx adsorbent component and one or more platinum group metals. The second layer comprises a diesel oxidation catalyst zone and an NO oxidation zone. The diesel oxidation catalyst zone comprises a platinum group metal, a zeolite, and optionally an alkaline earth metal. The NO oxidation zone comprises a platinum group metal and a carrier. The modified LNT stores NOx at temperatures below about 200° C. and releases at temperatures above about 200° C. The modified LNT and a method of using the modified LNT are also disclosed.Type: GrantFiled: November 3, 2017Date of Patent: January 21, 2020Assignee: Johnson Matthey Public Limited CompanyInventors: Paul Richard Phillips, Stuart David Reid, Daniel Swallow, James Alexander Wylie
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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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Publication number: 20190247836Abstract: 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: ApplicationFiled: April 24, 2019Publication date: August 15, 2019Inventors: 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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Publication number: 20190176129Abstract: 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: ApplicationFiled: February 12, 2019Publication date: June 13, 2019Inventors: Guy Richard CHANDLER, Paul Richard PHILLIPS, Stuart David REID, Wolfgang STREHLAU, Daniel SWALLOW
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Patent number: 10272419Abstract: 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: February 27, 2015Date of Patent: April 30, 2019Assignee: Johnson Matthey Public Limited CompanyInventors: 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: 10226762Abstract: 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: June 15, 2015Date of Patent: March 12, 2019Assignee: Johnson Matthey Public Limited CompanyInventors: Stuart David Reid, Alexander Nicholas Michael Green, Guy Richard Chandler
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Patent number: 10213768Abstract: 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: August 31, 2017Date of Patent: February 26, 2019Assignee: Johnson Matthey Public Limited CompanyInventors: Guy Richard Chandler, Paul Richard Phillips, Stuart David Reid, Wolfgang Strehlau, Daniel Swallow
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Patent number: 10151227Abstract: A catalyst for storing nitrogen oxides (NOx) in an exhaust gas from a lean burn engine comprising a NOx storage material and a substrate, wherein the NOx storage material comprises a NOx storage component and an NO oxidation promoter on a support material, wherein the NO oxidation promoter is manganese or an oxide, hydroxide or carbonate thereof.Type: GrantFiled: July 8, 2016Date of Patent: December 11, 2018Assignee: Johnson Matthey Public Limited CompanyInventors: Andrew Armitage, Andrew Francis Chiffey, John Benjamin Goodwin, James Leeland, Nuria Lastra-Calvo, Francois Moreau, Paul Richard Phillips, Stuart David Reid, Daniel Swallow, David Xuereb
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Publication number: 20180311646Abstract: 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 consisting essentially of one or more platinum group metals, a cerium-containing support material, and a first inorganic oxide.Type: ApplicationFiled: March 28, 2018Publication date: November 1, 2018Inventors: Guy Richard CHANDLER, Paul Richard PHILLIPS, Julian PRITZWALD-STEGMANN, Stuart David REID, Wolfgang STREHLAU
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Publication number: 20180311648Abstract: 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: ApplicationFiled: March 28, 2018Publication date: November 1, 2018Inventors: Guy Richard CHANDLER, Nuria LASTRA-CALVO, Paul Richard PHILLIPS, Jonathan RADCLIFFE, Stuart David REID, Byron TRUSCOTT