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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Publication number: 20180311647Abstract: 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, Paul Richard PHILLIPS, Stuart David REID, Byron TRUSCOTT
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Publication number: 20180065113Abstract: 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: August 31, 2017Publication date: March 8, 2018Inventors: Guy Richard CHANDLER, Paul Richard PHILLIPS, Stuart David REID, Wolfgang STREHLAU, Daniel SWALLOW
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Publication number: 20180066554Abstract: 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: ApplicationFiled: November 3, 2017Publication date: March 8, 2018Applicant: Johnson Matthey Public Limited CompanyInventors: Paul Richard PHILLIPS, Stuart David REID, Daniel SWALLOW, James Alexander WYLIE
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Publication number: 20170356317Abstract: 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: June 9, 2017Publication date: December 14, 2017Inventors: 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: 9828896Abstract: 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: August 7, 2015Date of Patent: November 28, 2017Assignee: Johnson Matthey Public Limited CompanyInventors: Daniel Swallow, Stuart David Reid, Paul Richard Phillips, James Alexander Wylie
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Patent number: 9815048Abstract: A heterogeneous catalyst article having at least one combination of a first molecular sieve having a medium pore, large pore, or meso-pore crystal structure and optionally containing a first metal, and a second molecular sieve having a small pore crystal structure and optionally containing a second metal, and a monolith substrate onto or within which said catalytic component is incorporated, wherein the combination of the first and second molecular sieves is a blend, a plurality of layers, and/or a plurality of zones.Type: GrantFiled: April 10, 2017Date of Patent: November 14, 2017Assignee: Johnson Matthey Public Limited CompanyInventors: Guy Richard Chandler, Alexander Nicholas Michael Green, Joanne Elizabeth Melville, Paul Richard Phillips, Stuart David Reid
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Publication number: 20170320046Abstract: 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: ApplicationFiled: May 4, 2017Publication date: November 9, 2017Inventors: 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: 20170216770Abstract: An oxidation catalyst for treating an exhaust gas from a diesel engine, which oxidation catalyst comprises: a first washcoat region comprising a first platinum group metal (PGM), a first support material and a NOx storage component; a second washcoat region comprising platinum (Pt), manganese (Mn) and a second support material; and a substrate having an inlet end and an outlet end.Type: ApplicationFiled: April 20, 2017Publication date: August 3, 2017Inventors: Andrew Francis CHIFFEY, John Benjamin GOODWIN, James LEELAND, Francois MOREAU, Stuart David REID, Daniel SWALLOW
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Publication number: 20170216826Abstract: A synthetic aluminosilicate zeolite catalyst containing at least one catalytically active transition metal selected from the group consisting of Cu, Fe, Hf, La, Au, In, V, lanthanides and Group VIII transition metals, which aluminosilicate zeolite is a small pore aluminosilicate zeolite having a maximum ring size of eight tetrahedral atoms, wherein the mean crystallite size of the aluminosilicate zeolite determined by scanning electron microscope is >0.50 micrometer.Type: ApplicationFiled: April 12, 2017Publication date: August 3, 2017Inventors: Guy Richard CHANDLER, Neil Robert COLLINS, Rodney FOO KOK SHIN, Alexander Nicholas Michael GREEN, Paul Richard PHILLIPS, Raj Rao RAJARAM, Stuart David REID
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Publication number: 20170209857Abstract: A heterogeneous catalyst article having at least one combination of a first molecular sieve having a medium pore, large pore, or meso-pore crystal structure and optionally containing a first metal, and a second molecular sieve having a small pore crystal structure and optionally containing a second metal, and a monolith substrate onto or within which said catalytic component is incorporated, wherein the combination of the first and second molecular sieves is a blend, a plurality of layers, and/or a plurality of zones.Type: ApplicationFiled: April 10, 2017Publication date: July 27, 2017Inventors: Guy Richard CHANDLER, Alexander Nicholas Michael GREEN, Joanne Elizabeth MELVILLE, Paul Richard PHILLIPS, Stuart David REID
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Patent number: 9636634Abstract: An oxidation catalyst for treating an exhaust gas from a diesel engine, which oxidation catalyst comprises: a first washcoat region comprising a first platinum group metal (PGM), a first support material and a NOx storage component; a second washcoat region comprising platinum (Pt), manganese (Mn) and a second support material; and a substrate having an inlet end and an outlet end.Type: GrantFiled: January 23, 2015Date of Patent: May 2, 2017Assignee: Johnson Matthey Public Limited CompanyInventors: Andrew Francis Chiffey, John Benjamin Goodwin, James Leeland, Francois Moreau, Stuart David Reid, Daniel Swallow
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Patent number: 9616420Abstract: A heterogeneous catalyst article having at least one combination of a first molecular sieve having a medium pore, large pore, or meso-pore crystal structure and optionally containing a first metal, and a second molecular sieve having a small pore crystal structure and optionally containing a second metal, and a monolith substrate onto or within which said catalytic component is incorporated, wherein the combination of the first and second molecular sieves is a blend, a plurality of layers, and/or a plurality of zones.Type: GrantFiled: January 21, 2013Date of Patent: April 11, 2017Assignee: Johnson Matthey Public Limited CompanyInventors: Guy Richard Chandler, Alexander Nicholas Michael Green, Joanne Elizabeth Melville, Paul Richard Phillips, Stuart David Reid
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Publication number: 20170009623Abstract: 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: ApplicationFiled: July 8, 2016Publication date: January 12, 2017Inventors: 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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Patent number: 9464547Abstract: An exhaust system for a vehicular lean burn internal combustion engine that emits oxides of nitrogen (NOx) and particulate matter (PM) is disclosed. The system comprises a NOx reduction catalyst for reducing NOx in the presence of a reductant, means for introducing reductant into a flowing exhaust gas and a source of hydrocarbon reductant, a nitrogenous reductant, and/or hydrogen, a filter for removing PM from exhaust gas flowing in the exhaust system and a low pressure exhaust gas recirculation (EGR) circuit for connecting the exhaust system downstream of the filter to an air intake of the engine. The EGR circuit comprises a IMOx adsorber catalyst (NAC) comprising a NO adsorbent.Type: GrantFiled: February 21, 2012Date of Patent: October 11, 2016Assignee: Johnson Matthey Public Limited CompanyInventors: Guy Richard Chandler, Alexander Nicholas Michael Green, Stuart David Reid
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Publication number: 20160047286Abstract: An exhaust system for treating an exhaust gas from an internal combustion engine is disclosed. The system comprises a modified lean NO 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 NO 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 NO 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: ApplicationFiled: August 7, 2015Publication date: February 18, 2016Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: Daniel SWALLOW, Stuart David REID, Paul Richard PHILLIPS, James Alexander WYLIE
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Publication number: 20150360212Abstract: A synthetic aluminosilicate zeolite catalyst containing at least one catalytically active transition metal selected from the group consisting of Cu, Fe, Hf, La, Au, In, V, lanthanides and Group VIII transition metals, which aluminosilicate zeolite is a small pore aluminosilicate zeolite having a maximum ring size of eight tetrahedral atoms, wherein the mean crystallite size of the aluminosilicate zeolite determined by scanning electron microscope is >0.50 micrometer.Type: ApplicationFiled: August 24, 2015Publication date: December 17, 2015Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: Guy Richard CHANDLER, Neil Robert COLLINS, Rodney FOO KOK SHIN, Alexander Nicholas Michael GREEN, Paul Richard PHILLIPS, Raj Rao RAJARAM, Stuart David REID
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Publication number: 20150246346Abstract: 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: February 27, 2015Publication date: September 3, 2015Inventors: 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: 20150202600Abstract: An oxidation catalyst for treating an exhaust gas from a diesel engine, which oxidation catalyst comprises: a first washcoat region comprising a first platinum group metal (PGM), a first support material and a NOx storage component; a second washcoat region comprising platinum (Pt), manganese (Mn) and a second support material; and a substrate having an inlet end and an outlet end.Type: ApplicationFiled: January 23, 2015Publication date: July 23, 2015Inventors: Andrew Francis CHIFFEY, John Benjamin GOODWIN, James LEELAND, Francois MOREAU, Stuart David REID, Daniel SWALLOW
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Publication number: 20150064074Abstract: A catalyst composition is provided wherein the composition includes a zeolite having a non-phosphorous CHA crystal structure and having a mean crystalline size of about 1 to about 5 microns; and at least one non-aluminum base metal present in an amount sufficient to achieve a NOx conversion of at least about 65% at a temperature of at least 450° C.Type: ApplicationFiled: November 11, 2014Publication date: March 5, 2015Inventors: Todd Howard BALLINGER, Philip Gerald BLAKEMAN, Guy Richard CHANDLER, Hai-Ying CHEN, Julian Peter COX, Joseph Michael FEDEYKO, Alexander Nicholas Michael GREEN, Paul Richard PHILLIPS, Stuart David REID, Erich Conlan WEIGERT, James Alexander WYLIE
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Patent number: 8906329Abstract: A catalyst composition is provided having a zeolite material of a CHA crystal structure and a silica to alumina mole ratio (SAR) of about 10 to about 25 and preferably having a mean crystal size of at least 1.0 microns; and a non-aluminum base metal (M), wherein said zeolite material contains said base metal in a base metal to aluminum ratio (M:Al) of about 0.10 to about 0.24.Type: GrantFiled: August 14, 2013Date of Patent: December 9, 2014Assignee: Johnson Matthey Public Limited CompanyInventors: Todd Howard Ballinger, Philip Gerald Blakeman, Guy Richard Chandler, Hai-Ying Chen, Julian Peter Cox, Joseph M. Fedeyko, Alexander Nicholas Michael Green, Paul Richard Phillips, Stuart David Reid, Erich Conlan Weigert, James Alexander Wylie