Patents by Inventor Lucy CLOWES
Lucy CLOWES 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: 20240082828Abstract: 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 comprising an aluminosilicate zeolite having a SAR of greater than 100:1 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 18, 2023Publication date: March 14, 2024Inventors: Lucy CLOWES, Alexander Nicholas Michael GREEN, John TURNER, Sarah WARREN
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Publication number: 20230381746Abstract: A method for the manufacture of a gasoline particulate filter (GPF) for the treatment of an exhaust gas is disclosed. The method comprises (i) forming a washcoat slurry; (ii) coating a wall-flow filter substrate with the washcoat slurry to form a washcoated substrate; and (iii) calcining the washcoated substrate to form a gasoline particulate filter. The washcoat slurry comprises (a) a platinum group metal selected from the group consisting of Pt, Pd, Rh and mixtures thereof; (b) an oxygen storage capacity (OSC) material; and (c) a C2-C6 aliphatic amino acid.Type: ApplicationFiled: May 22, 2023Publication date: November 30, 2023Inventors: Brenda BENET RAJKUMAR, Ketan CHAVDA, Lucy CLOWES, Olivia DUNSEATH, Mark WALTON
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Patent number: 11541383Abstract: A vehicular exhaust filter comprising a porous substrate having an inlet face and an outlet face with the porous substrate comprising inlet channels extending from the inlet face and outlet channels extending from the outlet face is disclosed. The inlet channels and the outlet channels are separated by a plurality of filter walls having a porous structure. The vehicular exhaust filter is loaded with a refractory powder having a tapped density before loading of less than 0.10 g/cm3 and the vehicular exhaust filter has a mass loading of the refractory powder of less than 10 g/l.Type: GrantFiled: November 18, 2021Date of Patent: January 3, 2023Assignee: Johnson Matthey Public Limited CompanyInventors: Peter Bellham, Andrew Chiffey, Lucy Clowes, Thomas Hotchkiss, David Marvell, John Turner, Sarah Warren
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Publication number: 20220111376Abstract: A vehicular exhaust filter comprising a porous substrate having an inlet face and an outlet face with the porous substrate comprising inlet channels extending from the inlet face and outlet channels extending from the outlet face is disclosed. The inlet channels and the outlet channels are separated by a plurality of filter walls having a porous structure. The vehicular exhaust filter is loaded with a refractory powder having a tapped density before loading of less than 0.10 g/cm3 and the vehicular exhaust filter has a mass loading of the refractory powder of less than 10 g/l.Type: ApplicationFiled: November 18, 2021Publication date: April 14, 2022Inventors: Peter BELLHAM, Andrew CHIFFEY, Lucy CLOWES, Thomas HOTCHKISS, David MARVELL, John TURNER, Sarah WARREN
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Patent number: 11285467Abstract: A catalyst article and its use in an exhaust system for internal combustion engines is disclosed. The catalyst article comprises a substrate which is a wall-flow filter, a first catalyst composition, and a second catalyst composition. The first and second catalyst compositions each independently comprise an oxygen storage component (OSC) derived from a CeZr mixed oxide sol having a D90 of less than 1.3 micron and a particulate inorganic oxide having a D90 of from 1 to 20 microns.Type: GrantFiled: September 29, 2020Date of Patent: March 29, 2022Assignee: Johnson Matthey Public Limited CompanyInventors: Lucy Clowes, John Goodwin, Fezile Lakadamyali, Alex Ravenscroft, Chris Robson, Sarah Warren
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Patent number: 11207667Abstract: A vehicular exhaust filter (2) comprising a porous substrate having an inlet face and an outlet face with the porous substrate comprising inlet channels extending from the inlet face and outlet channels extending from the outlet face is disclosed. The inlet channels and the outlet channels are separated by a plurality of filter walls having a porous structure. The vehicular exhaust filter (2) is loaded with a refractory powder having a tapped density before loading of less than 0.10 g/cm3 and the vehicular exhaust filter has a mass loading of the refractory powder of less than 10 g/l.Type: GrantFiled: August 13, 2020Date of Patent: December 28, 2021Assignee: Johnson Matthey Public Limited CompanyInventors: Peter Bellham, Andrew Chiffey, Lucy Clowes, Thomas Hotchkiss, David Marvell, John Turner, Sarah Warren
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Patent number: 11203958Abstract: A catalytic wall-flow monolith filter having three-way catalytic activity for use in an emission treatment system of a positive ignition internal combustion engine comprising a porous filter substrate having a first face and a second face defining a longitudinal direction there between and first and second pluralities of channels extending in the longitudinal direction, wherein the first plurality of channels is open at the first face and closed at the second face and the channels of the first plurality of channels are defined in part by channel wall surfaces, wherein the second plurality of channels is open at the second face and closed at the first face and the channels of the second plurality of channels are defined in part by channel wall surfaces and wherein channel walls between the channel wall surfaces of the first plurality of channels and the channel wall surfaces of the second plurality of channels are porous, wherein a first on-wall coating comprising catalytic material having a layer thickness isType: GrantFiled: September 30, 2016Date of Patent: December 21, 2021Assignee: Johnson Matthey Public Limited CompanyInventors: Lucy Clowes, Oliver Destecroix, John Benjamin Goodwin, Michael Anthony Howard, Fezile Lakadamyali, Sarah Frances Lockett, Paul Millington, Chris Robson
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Patent number: 11047276Abstract: The present invention provides a particulate filter for use in an emission treatment system of a gasoline engine, the filter having an inlet side and an outlet side, wherein at least the inlet side is loaded with a synthetic ash.Type: GrantFiled: December 22, 2017Date of Patent: June 29, 2021Inventors: Lucy Clowes, Michael Anthony Howard
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Publication number: 20210046467Abstract: A vehicular exhaust filter (2) comprising a porous substrate having an inlet face and an outlet face with the porous substrate comprising inlet channels extending from the inlet face and outlet channels extending from the outlet face is disclosed. The inlet channels and the outlet channels are separated by a plurality of filter walls having a porous structure. The vehicular exhaust filter (2) is loaded with a refractory powder having a tapped density before loading of less than 0.10 g/cm3 and the vehicular exhaust filter has a mass loading of the refractory powder of less than 10 g/l.Type: ApplicationFiled: August 13, 2020Publication date: February 18, 2021Inventors: Peter BELLHAM, Andrew CHIFFEY, Lucy CLOWES, Thomas HOTCHKISS, David MARVELL, John TURNER, Sarah WARREN
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Publication number: 20210023543Abstract: A catalyst article and its use in an exhaust system for internal combustion engines is disclosed. The catalyst article comprises a substrate which is a wall-flow filter, a first catalyst composition, and a second catalyst composition. The first and second catalyst compositions each independently comprise an oxygen storage component (OSC) derived from a CeZr mixed oxide sol having a D90 of less than 1.3 micron and a particulate inorganic oxide having a D90 of from 1 to 20 microns.Type: ApplicationFiled: September 29, 2020Publication date: January 28, 2021Inventors: Lucy CLOWES, John GOODWIN, Fezile LAKADAMYALI, Alex RAVENSCROFT, Chris ROBSON, Sarah WARREN
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Publication number: 20200191030Abstract: The present invention provides a particulate filter for use in an emission treatment system of a gasoline engine, the filter having an inlet side and an outlet side, wherein at least the inlet side is loaded with a synthetic ash.Type: ApplicationFiled: December 22, 2017Publication date: June 18, 2020Inventors: Lucy CLOWES, Michael Anthony HOWARD
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Patent number: 10625243Abstract: A catalytic wall-flow monolith for use in an emission treatment system comprises a porous substrate and a three-way catalyst (TWC), wherein the TWC is distributed substantially throughout the porous substrate and wherein the TWC comprises: (i) alumina; (ii) one or more platinum group metals; and (iii) an oxygen storage component (OSC), wherein the OSC comprises ceria or one or more mixed oxides comprising cerium and is present in a ratio by weight of OSC to alumina of from 65:35 to 85:15.Type: GrantFiled: December 23, 2016Date of Patent: April 21, 2020Assignee: Johnson Matthey Public Limited CompanyInventors: Lucy Clowes, Oliver Destecroix, John Benjamin Goodwin, Michael Anthony Howard, Fezile Lakadamyali, Sarah Frances Lockett, Paul Millington, Chris Robson
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Publication number: 20190009254Abstract: A catalytic wall-flow monolith for use in an emission treatment system comprises a porous substrate and a three-way catalyst (TWC), wherein the TWC is distributed substantially throughout the porous substrate and wherein the TWC comprises: (i) alumina; (ii) one or more platinum group metals; and (iii) an oxygen storage component (OSC), wherein the OSC comprises ceria or one or more mixed oxides comprising cerium and is present in a ratio by weight of OSC to alumina of from 65:35 to 85:15Type: ApplicationFiled: December 23, 2016Publication date: January 10, 2019Inventors: Lucy CLOWES, Oliver DESTECROIX, John Benjamin GOODWIN, Michael Anthony HOWARD, Fezile LAKADAMYALI, Sarah Frances LOCKETT, Paul MILLINGTON, Chris ROBSON
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Publication number: 20180298800Abstract: A catalytic wall-flow monolith filter having three-way catalytic activity for use in an emission treatment system of a positive ignition internal combustion engine comprising a porous filter substrate having a first face and a second face defining a longitudinal direction there between and first and second pluralities of channels extending in the longitudinal direction, wherein the first plurality of channels is open at the first face and closed at the second face and the channels of the first plurality of channels are defined in part by channel wall surfaces, wherein the second plurality of channels is open at the second face and closed at the first face and the channels of the second plurality of channels are defined in part by channel wall surfaces and wherein channel walls between the channel wall surfaces of the first plurality of channels and the channel wall surfaces of the second plurality of channels are porous, wherein a first on-wall coating comprising catalytic material having a layer thickness isType: ApplicationFiled: September 30, 2016Publication date: October 18, 2018Inventors: Lucy CLOWES, Oliver DESTECROIX, John Benjamin GOODWIN, Michael Anthony HOWARD, Fezile LAKADAMYALI, Sarah Frances LOCKETT, Paul MILLINGTON, Chris ROBSON
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Publication number: 20140234189Abstract: A positive ignition engine is disclosed. The engine comprises an exhaust system comprising a filter for filtering particulate matter from the emitted exhaust gas. The filter comprises a porous substrate having inlet surfaces and outlet surfaces. The porous substrate is coated at least in part with a three-way catalyst washcoat comprising a platinum group metal and a plurality of solid particles. The plurality of solid particles comprises at least one base metal oxide and at least one oxygen storage component which is a mixed oxide or composite oxide comprising cerium. The mixed oxide or composite oxide comprising cerium and/or the at least one base metal oxide has a median particle size (D50) less than 1 ?m. The platinum group metal platinum and rhodium; palladium and rhodium; platinum, palladium and rhodium; palladium only; or rhodium only. A process for treating exhaust gas using the filter is also disclosed.Type: ApplicationFiled: February 17, 2014Publication date: August 21, 2014Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: Lucy CLOWES, Oliver DESTECROIX, John Benjamin GOODWIN, David GREENWELL, Michael Anthony HOWARD, Christopher Charles John SCOTNEY