Patents by Inventor Gavin Michael Brown
Gavin Michael Brown 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: 11484836Abstract: An exhaust gas aftertreatment system for a diesel-engined vehicle, which system comprising a NOx Storage Catalyst (NSC) followed in a downstream direction by a Catalysed Soot Filter (CSF), wherein the CSF comprises an oxidative catalyst comprising a palladium-rich weight ratio of platinum and palladium.Type: GrantFiled: March 8, 2011Date of Patent: November 1, 2022Assignee: Johnson Matthey Public Limited CompanyInventors: Andrew Francis Chiffey, Gavin Michael Brown
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Patent number: 10773251Abstract: The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalysed substrate monolith comprising an oxidising catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalysed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.Type: GrantFiled: August 6, 2019Date of Patent: September 15, 2020Assignee: Johnson Matthey Public Limited CompanyInventors: Philip Gerald Blakeman, Gavin Michael Brown, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Hanako Oyamada, Raj Rao Rajaram, Satoshi Sumiya, Andrew Peter Walker, Lifeng Wang
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Patent number: 10688475Abstract: A catalysed substrate monolith 12 for use in treating exhaust gas emitted from a lean-burn internal combustion engine, which catalysed substrate monolith 12 comprising a first washcoat coating 16 and a second washcoat coating 18, wherein the first washcoat coating comprises a catalyst composition comprising at least one platinum group metal (PGM) and at least one support material for the at least one PGM, wherein at least one PGM in the first washcoat coating is liable to volatilise when the first washcoat coating is exposed to relatively extreme conditions including relatively high temperatures, wherein the second washcoat coating comprises at least one metal oxide for trapping volatilised PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat coating.Type: GrantFiled: February 6, 2019Date of Patent: June 23, 2020Assignee: Johnson Matthey Public Limited CompanyInventors: Philip Gerald Blakeman, Gavin Michael Brown, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Raj Rao Rajaram, Glen Spreitzer, Andrew Peter Walker
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Publication number: 20190358616Abstract: The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalysed substrate monolith comprising an oxidising catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalysed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.Type: ApplicationFiled: August 6, 2019Publication date: November 28, 2019Inventors: Philip Gerald BLAKEMAN, Gavin Michael BROWN, Sougato CHATTERJEE, Andrew Francis CHIFFEY, Jane GAST, Paul Richard PHILLIPS, Hanako OYAMADA, Raj Rao RAJARAM, Satoshi SUMIYA, Andrew Peter WALKER, Lifeng WANG
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Patent number: 10376867Abstract: The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalyzed substrate monolith comprising an oxidizing catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalyzed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.Type: GrantFiled: December 15, 2017Date of Patent: August 13, 2019Assignee: Johnson Matthey Public Limited CompanyInventors: Philip Gerald Blakeman, Gavin Michael Brown, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Hanako Oyamada, Raj Rao Rajaram, Satoshi Sumiya, Andrew Peter Walker, Lifeng Wang
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Publication number: 20190168189Abstract: A catalysed substrate monolith 12 for use in treating exhaust gas emitted from a lean-burn internal combustion engine, which catalysed substrate monolith 12 comprising a first washcoat coating 16 and a second washcoat coating 18, wherein the first washcoat coating comprises a catalyst composition comprising at least one platinum group metal (PGM) and at least one support material for the at least one PGM, wherein at least one PGM in the first washcoat coating is liable to volatilise when the first washcoat coating is exposed to relatively extreme conditions including relatively high temperatures, wherein the second washcoat coating comprises at least one metal oxide for trapping volatilised PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat coating.Type: ApplicationFiled: February 6, 2019Publication date: June 6, 2019Inventors: Philip Gerald BLAKEMAN, Gavin Michael BROWN, Sougato CHATTERJEE, Andrew Francis CHIFFEY, Jane GAST, Paul Richard PHILLIPS, Raj Rao RAJARAM, Glen SPREITZER, Andrew Peter WALKER
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Patent number: 10233806Abstract: An exhaust system for an internal combustion engine, the exhaust system comprising, a lean NOx trap, a NOx storage and reduction zone on a wall flow monolithic substrate having a pre-coated porosity of 50% or greater, the NOx storage and reduction zone comprising a platinum group metal loaded on one or more first support, the or each first support comprising one or more alkaline earth metal compound, and a selective catalytic reduction zone on a monolithic substrate, the selective catalytic reduction zone comprising copper or iron loaded on a second support, the second support comprising a molecular sieve.Type: GrantFiled: October 12, 2016Date of Patent: March 19, 2019Assignee: Johnson Matthey Public Limited CompanyInventors: Gavin Michael Brown, Andrew Francis Chiffey, Paul Richard Phillips, Jonathan Radcliffe
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Patent number: 10207254Abstract: A catalyzed substrate monolith 12 for use in treating exhaust gas emitted from a lean-burn internal combustion engine, which catalyzed substrate monolith 12 comprising a first washcoat coating 16 and a second washcoat coating 18, wherein the first washcoat coating comprises a catalyst composition comprising at least one platinum group metal (PGM) and at least one support material for the at least one PGM, wherein at least one PGM in the first washcoat coating is liable to volatilize when the first washcoat coating is exposed to relatively extreme conditions including relatively high temperatures, wherein the second washcoat coating comprises at least one metal oxide for trapping volatilized PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat coating.Type: GrantFiled: March 2, 2017Date of Patent: February 19, 2019Assignee: Johnson Matthey Public Limited CompanyInventors: Philip Gerald Blakeman, Gavin Michael Brown, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Raj Rao Rajaram, Glen Spreitzer, Andrew Peter Walker
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Patent number: 10195566Abstract: A catalysed soot filter comprises an oxidation catalyst for oxidizing NO to NO2 and/or oxidizing CO to CO2 and/or HC to CO2 and H2O disposed on a wall flow filter monolithic substrate, the oxidation catalyst comprising: a platinum group metal component, and a pre-calcined support material comprising a mixed magnesium aluminium metal oxide having a magnesium content, calculated as Mg, of 15 wt % Mg or lower.Type: GrantFiled: October 31, 2016Date of Patent: February 5, 2019Assignee: Johnson Matthey Public Limited CompanyInventors: Gavin Michael Brown, Andrew Francis Chiffey, Jonathan David Radcliffe
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Publication number: 20180104677Abstract: The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalysed substrate monolith comprising an oxidising catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalysed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.Type: ApplicationFiled: December 15, 2017Publication date: April 19, 2018Inventors: Philip Gerald BLAKEMAN, Gavin Michael BROWN, Sougato CHATTERJEE, Andrew Francis CHIFFEY, Jane GAST, Paul Richard PHILLIPS, Hanako OYAMADA, Raj Rao RAJARAM, Satoshi SUMIYA, Andrew Peter WALKER, Lifeng WANG
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Patent number: 9868115Abstract: The invention provides an exhaust gas cleaning oxidation catalyst and in particular to an oxidation catalyst for cleaning the exhaust gas discharged from internal combustion engines of compression ignition type (particularly diesel engines). The invention further relates to a catalysed substrate monolith comprising an oxidising catalyst on a substrate monolith for use in treating exhaust gas emitted from a lean-burn internal combustion engine. In particular, the invention relates to a catalysed substrate monolith comprising a first washcoat coating and a second washcoat coating, wherein the second washcoat coating is disposed in a layer above the first washcoat coating.Type: GrantFiled: April 1, 2015Date of Patent: January 16, 2018Assignee: Johnson Matthey Public Limited CompanyInventors: Satoshi Sumiya, Lifeng Wang, Hanako Oyamada, Philip Gerald Blakeman, Gavin Michael Brown, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Raj Rao Rajaram, Andrew Peter Walker
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Publication number: 20170274358Abstract: A catalysed substrate monolith 12 for use in treating exhaust gas emitted from a lean-burn internal combustion engine, which catalysed substrate monolith 12 comprising a first washcoat coating 16 and a second washcoat coating 18, wherein the first washcoat coating comprises a catalyst composition comprising at least one platinum group metal (PGM) and at least one support material for the at least one PGM, wherein at least one PGM in the first washcoat coating is liable to volatilise when the first washcoat coating is exposed to relatively extreme conditions including relatively high temperatures, wherein the second washcoat coating comprises at least one metal oxide for trapping volatilised PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat coating.Type: ApplicationFiled: March 2, 2017Publication date: September 28, 2017Inventors: Philip Gerald BLAKEMAN, Gavin Michael BROWN, Sougato CHATTERJEE, Andrew Francis CHIFFEY, Jane GAST, Paul Richard PHILLIPS, Raj Rao RAJARAM, Glen SPREITZER, Andrew Peter WALKER
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Publication number: 20170211455Abstract: An exhaust system for an internal combustion engine comprises a lean NOx trap, a NOx storage and reduction zone on a wall flow monolithic substrate having a pre-coated porosity of 50% or greater, the NOx storage and reduction zone comprising a platinum group metal loaded on one or more first support, the or each first support comprising one or more alkaline earth metal compound, and a selective catalytic reduction zone on a monolithic substrate, the selective catalytic reduction zone comprising copper or iron loaded on a second support, the second support comprising a molecular sieve.Type: ApplicationFiled: January 26, 2017Publication date: July 27, 2017Inventors: Gavin Michael BROWN, Andrew Francis CHIFFEY, Jonathan RADCLIFFE
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Publication number: 20170173530Abstract: An exhaust system 20 for an internal combustion engine comprises a) a first catalysed substrate monolith 12 comprising a first washcoat coating disposed in a first washcoat zone 16 of the substrate monolith and a second washcoat coating disposed in a second washcoat zone 18 of the substrate monolith, wherein the first washcoat coating comprises a catalyst composition comprising at least one platinum group metal (PGM) and at least one support material, wherein at least one PGM in the first washcoat coating is liable to volatilise when the first washcoat coating is exposed to relatively extreme conditions including relatively high temperatures, wherein the second washcoat coating comprises at least one material supporting copper for trapping volatilised PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat; and b) a second catalysed substrate monolith 14 comprising a catalyst for selectively catalysing the reduction of oxides of nitrogen to dinitrogType: ApplicationFiled: December 16, 2015Publication date: June 22, 2017Inventors: PHILIP GERALD BLAKEMAN, GAVIN MICHAEL BROWN, ANDREW FRANCIS CHIFFEY, JANE GAST, PAUL RICHARD PHILLIPS, RAJ RAO RAJARAM, GLEN SPREITZER, ANDREW PETER WALKER
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Publication number: 20170120192Abstract: A catalysed soot filter comprises an oxidation catalyst for oxidizing NO to NO2 and/or oxidizing CO to CO2 and/or HC to CO2 and H2O disposed on a wall flow filter monolithic substrate, the oxidation catalyst comprising: a platinum group metal component, and a pre-calcined support material comprising a mixed magnesium aluminium metal oxide having a magnesium content, calculated as Mg, of 15 wt % Mg or lower.Type: ApplicationFiled: October 31, 2016Publication date: May 4, 2017Inventors: Gavin Michael BROWN, Andrew Francis CHIFFEY, Jonathan David RADCLIFFE
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Publication number: 20170107878Abstract: An exhaust system for an internal combustion engine, the exhaust system comprising, a lean NOx trap, a NOx storage and reduction zone on a wall flow monolithic substrate having a pre-coated porosity of 50% or greater, the NOx storage and reduction zone comprising a platinum group metal loaded on one or more first support, the or each first support comprising one or more alkaline earth metal compound, and a selective catalytic reduction zone on a monolithic substrate, the selective catalytic reduction zone comprising copper or iron loaded on a second support, the second support comprising a molecular sieve.Type: ApplicationFiled: October 12, 2016Publication date: April 20, 2017Inventors: Gavin Michael BROWN, Andrew Francis CHIFFEY, Paul Richard PHILLIPS, Jonathan RADCLIFFE
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Patent number: 9611773Abstract: A zoned catalyzed substrate monolith comprises a first zone and a second zone that are arranged axially in series. The first zone comprises a platinum group metal loaded on a support and a first base metal oxide or a first base metal loaded on an inorganic oxide. The first base metal oxide is iron oxide, manganese oxide, copper oxide, zinc oxide, nickel oxide, or mixtures thereof. The first base metal is iron, manganese, copper, zinc, nickel, or mixtures thereof. The second zone comprises copper or iron loaded on a zeolite and a second base metal oxide or a second base metal loaded on an inorganic oxide. The second base metal oxide is iron oxide, manganese oxide, copper oxide, zinc oxide, nickel oxide, or mixtures thereof. The second base metal is iron, manganese, copper, zinc, nickel, or mixtures thereof. The second base metal is different from the first base metal.Type: GrantFiled: November 22, 2013Date of Patent: April 4, 2017Assignee: Johnson Matthey Public Limited CompanyInventors: Gavin Michael Brown, Andrew Francis Chiffey, Paul Richard Phillips, Daniel Swallow
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Patent number: 9597661Abstract: A catalyzed substrate monolith 12 for use in treating exhaust gas emitted from a lean-burn internal combustion engine, which catalyzed substrate monolith 12 comprising a first washcoat coating 16 and a second washcoat coating 18, wherein the first washcoat coating comprises a catalyst composition comprising at least one platinum group metal (PGM) and at least one support material for the at least one PGM, wherein at least one PGM in the first washcoat coating is liable to volatilize when the first washcoat coating is exposed to relatively extreme conditions including relatively high temperatures, wherein the second washcoat coating comprises at least one metal oxide for trapping volatilized PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat coating.Type: GrantFiled: May 12, 2015Date of Patent: March 21, 2017Assignee: Johnson Matthey Public Limited CompanyInventors: Philip Gerald Blakeman, Gavin Michael Brown, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Raj Rao Rajaram, Glen Spreitzer, Andrew Peter Walker
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Patent number: 9527035Abstract: A catalyzed soot filter comprising an oxidation catalyst for treating carbon monoxide (CO) and hydrocarbons (HCs) in exhaust gas from a compression ignition engine disposed on a filtering substrate, wherein the oxidation catalyst comprises: a platinum group metal (PGM) component selected from the group consisting of a platinum (Pt) component, a palladium (Pd) component and a combination thereof; an alkaline earth metal component; a support material comprising a modified alumina incorporating a heteroatom component.Type: GrantFiled: May 12, 2015Date of Patent: December 27, 2016Assignee: Johnson Matthey Public Limited CompanyInventors: David Bergeal, Andrew Francis Chiffey, John Benjamin Goodwin, Daniel Hatcher, Francois Moreau, Agnes Raj, Raj Rao Rajaram, Paul Richard Phillips, Cathal Prendergast, Gavin Michael Brown
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Patent number: 9259684Abstract: An exhaust system 20 for an internal combustion engine comprises a) a first catalysed substrate monolith 12 comprising a first washcoat coating disposed in a first washcoat zone 16 of the substrate monolith and a second washcoat coating disposed in a second washcoat zone 18 of the substrate monolith, wherein the first washcoat coating comprises a catalyst composition comprising at least one platinum group metal (PGM) and at least one support material, wherein at least one PGM in the first washcoat coating is liable to volatilise when the first washcoat coating is exposed to relatively extreme conditions including relatively high temperatures, wherein the second washcoat coating comprises at least one material supporting copper for trapping volatilised PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat; and b) a second catalysed substrate monolith 14 comprising a catalyst for selectively catalysing the reduction of oxides of nitrogen to dinitrogType: GrantFiled: December 11, 2012Date of Patent: February 16, 2016Assignee: Johnson Matthey Public Limited CompanyInventors: Philip Gerald Blakeman, Gavin Michael Brown, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Raj Rao Rajaram, Glen Spreitzer, Andrew Peter Walker