Patents by Inventor Raj Rao
Raj Rao 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: 20150118114Abstract: A method of converting nitrogen oxides in a gas to nitrogen by contacting the nitrogen oxides with a nitrogenous reducing agent in the presence of a zeolite catalyst containing at least one transition metal, wherein the zeolite is a small pore zeolite containing a maximum ring size of eight tetrahedral atoms, wherein the at least one transition metal is selected from the group consisting of Cr, Mn, Fe, Co, Ce, Ni, Cu, Zn, Ga, Mo, Ru, Rh, Pd, Ag, In, Sn, Re, Jr and Pt.Type: ApplicationFiled: December 31, 2014Publication date: April 30, 2015Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: HAI-YING CHEN, JOSEPH MICHAEL FEDEYKO, RODNEY KOK SHIN FOO, PAUL JOSEPH ANDERSEN, JILLIAN ELAINE COLLIER, JOHN LEONELLO CASCI, RAJ RAO RAJARAM
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Publication number: 20150118115Abstract: A method of converting nitrogen oxides in a gas to nitrogen by contacting the nitrogen oxides with a nitrogenous reducing agent in the presence of a zeolite catalyst containing at least one transition metal, wherein the zeolite is a small pore zeolite containing a maximum ring size of eight tetrahedral atoms, wherein the at least one transition metal is selected from the group consisting of Cr, Mn, Fe, Co, Ce, Ni, Cu, Zn, Ga, Mo, Ru, Rh, Pd, Ag, In, Sn, Re, Ir and Pt.Type: ApplicationFiled: December 31, 2014Publication date: April 30, 2015Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: HAI-YING CHEN, JOSEPH MICHAEL FEDEYKO, RODNEY KOK SHIN FOO, PAUL JOSEPH ANDERSEN, JILLIAN ELAINE COLLIER, JOHN LEONELLO CASCI, RAJ RAO RAJARAM
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Publication number: 20150110682Abstract: A method of converting nitrogen oxides in a gas to nitrogen by contacting the nitrogen oxides with a nitrogenous reducing agent in the presence of a zeolite catalyst containing at least one transition metal, wherein the zeolite is a small pore zeolite containing a maximum ring size of eight tetrahedral atoms, wherein the at least one transition metal is selected from the group consisting of Cr, Mn, Fe, Co, Ce, Ni, Cu, Zn, Ga, Mo, Ru, Rh, Pd, Ag, In, Sn, Re, Ir and Pt.Type: ApplicationFiled: December 31, 2014Publication date: April 23, 2015Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: HAI-YING CHEN, JOSEPH MICHAEL FEDEYKO, RODNEY KOK SHIN FOO, PAUL JOSEPH ANDERSEN, JILLIAN ELAINE COLLIER, JOHN LEONELLO CASCI, RAJ RAO RAJARAM
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Patent number: 9005559Abstract: 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: January 20, 2014Date of Patent: April 14, 2015Assignees: Johnson Matthey Public Limited Company, Johnson Matthey Japan Godo KaishaInventors: 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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Patent number: 8986635Abstract: Methods are disclosed for reducing or preventing a selective catalytic reduction (SCR) catalyst disposed on a first substrate monolith in an exhaust system of a lean-burn internal combustion engine from becoming poisoned with platinum group metal (PGM) which may volatilize from a catalyst composition comprising PGM disposed on at least one second substrate monolith upstream of the SCR catalyst. The methods comprise adsorbing volatilized PGM in at least one PGM trapping material, which is disposed on a third substrate monolith disposed between the first substrate monolith and the second substrate monolith.Type: GrantFiled: March 6, 2014Date of Patent: March 24, 2015Assignee: Johnson Matthey Public Limited CompanyInventors: Philip Gerald Blakeman, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Raj Rao Rajaram, Andrew Peter Walker
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Patent number: 8977569Abstract: A smart electronic wallet with reconfigurable multiple-account transaction card is provided. The system and method provide measures for storing a plurality of account identifiers from a plurality of traditional single-use transaction cards into a storage memory in a smart wallet. The system and method also provide for storing a reconfigurable multiple-account transaction card within the smart electronic wallet and allowing for it to be dynamically and selectively reconfigured for any one of the plurality of account identifiers stored within the smart electronic wallet. Additionally, a consumer is able to initiate a transfer or trade of transaction cards across different smart electronic wallet devices.Type: GrantFiled: August 14, 2012Date of Patent: March 10, 2015Inventor: Raj Rao
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Patent number: 8906820Abstract: A method of converting nitrogen oxides in a gas to nitrogen by contacting the nitrogen oxides with a nitrogenous reducing agent in the presence of a zeolite catalyst containing at least one transition metal, wherein the zeolite is a small pore zeolite containing a maximum ring size of eight tetrahedral atoms, wherein the at least one transition metal is selected from the group consisting of Cr, Mn, Fe, Co, Ce, Ni, Cu, Zn, Ga, Mo, Ru, Rh, Pd, Ag, In, Sn, Re, Ir and Pt.Type: GrantFiled: August 6, 2012Date of Patent: December 9, 2014Assignee: Johnson Matthey Public Limited CompanyInventors: Joseph Michael Fedeyko, Rodney Kok Shin Foo, John Leonello Casci, Hai-Ying Chen, Paul Joseph Andersen, Jillian Elaine Collier, Raj Rao Rajaram
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Publication number: 20140193327Abstract: A catalyst composition is provided having a CHA crystal structure; about 0.5 to about 5.0 mol % phosphorus; and SiO2 and Al2O3 in a mole ratio of about 5 to about 40. The catalyst composition is capable of NOx conversion at elevated temperatures. A catalytically active washcoat includes such catalyst compositions and one or more promoters or stabilizers, and may be applied to a monolith substrate to produce a catalytically active article. Methods of reducing NOx employing the catalyst compositions are also provided.Type: ApplicationFiled: July 26, 2012Publication date: July 10, 2014Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: John L. Casci, Hai-Ying Chen, Joseph Michael Fedeyko, Jillian Elaine Collier, Raj Rao Rajaram, David Thompsett
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Publication number: 20140186245Abstract: An exhaust system 10 for a vehicular lean-burn internal combustion engine comprises: (a) a first substrate monolith 6 comprising a SCR catalyst; (b) at least one second substrate monolith 4 comprising a catalytic washcoat coating comprising at least one platinum group metal (PGM) disposed upstream of the first substrate monolith; and (c) a third substrate monolith 2 disposed between the first substrate monolith and the or each second substrate monolith, wherein at least one PGM on the or each second substrate monolith 4 is liable to volatilise when the or each second substrate monolith 4 is exposed to relatively extreme conditions including relatively high temperatures, and wherein the third substrate monolith 2 comprises a washcoat coating comprising at least one metal oxide for trapping volatilised PGM.Type: ApplicationFiled: March 6, 2014Publication date: July 3, 2014Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: Philip Gerald BLAKEMAN, Sougato CHATTERJEE, Andrew Francis CHIFFEY, Jane GAST, Paul Richard PHILLIPS, Raj Rao RAJARAM, Andrew Peter WALKER
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Publication number: 20140186244Abstract: 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 6, 2014Publication date: July 3, 2014Applicant: 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: 20140147359Abstract: A catalysed 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: ApplicationFiled: November 21, 2013Publication date: May 29, 2014Applicant: 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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Publication number: 20140140911Abstract: An exhaust system for a compression ignition engine comprising an oxidation catalyst for treating carbon monoxide (CO) and hydrocarbons (HCs) in exhaust gas from the compression ignition engine, 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; and a substrate, wherein the platinum group metal (PGM) component, the alkaline earth metal component and the support material are disposed on the substrate.Type: ApplicationFiled: November 21, 2013Publication date: May 22, 2014Applicant: 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
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Publication number: 20140130760Abstract: 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: January 20, 2014Publication date: May 15, 2014Applicants: JOHNSON MATTHEY PUBLIC LIMITED COMPANY, JOHNSON MATTHEY JAPAN G.K.Inventors: SATOSHI SUMIYA, LIFENG WANG, HANAKO OYAMADA, PHILIP GERALD BLAKEMAN, MICHAEL GAVIN BROWN, SOUGATO CHATTERJEE, ANDREW FRANCIS CHIFFEY, JANE GAST, PAUL RICHARD PHILLIPS, RAJ RAO RAJARAM, ANDREW PETER WALKER
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Patent number: 8715602Abstract: A method of reducing nitrogen oxides (NOx) in a flowing combustion exhaust gas to N2, which method comprising oxidizing nitrogen monoxide to nitrogen dioxide on a transition metal/elite catalyst at catalyst bed temperatures below 50° C. and reducing NOx with the catalyst using an hydrocarbon (HC) reductant at catalyst bed temperatures below 150° C.Type: GrantFiled: January 12, 2007Date of Patent: May 6, 2014Assignee: Johnson Matthey Public Limited CompanyInventors: Jillian Elaine Collier, Philip Gerald Blakeman, Isabel Zoe Tingay, Paul James Millington, Raj Rao Rajaram, Andrew Peter Walker
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Publication number: 20140093442Abstract: A dual function catalytic filter is provided having a soot filter with an inlet and an outlet, a soot oxidation layer on the inlet, wherein the soot oxidation layer comprises a soot oxidation catalytic component consisting essentially of at least one transition metal dispersed on a cerium and zirconium mixed and/or composite oxide, wherein the at least one transition metal is selected from the group consisting of W, Cr, Ce, Mn, Fe, Co, Ni, Cu, and combinations thereof, and an SCR layer coated on the outlet, wherein the SCR layer comprises an SCR catalytic component. Also provided are methods for removing NOx and soot from a lean burn exhaust gas using the dual function catalytic filter.Type: ApplicationFiled: May 31, 2012Publication date: April 3, 2014Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANYInventors: Glen Spreitzer, Sougato Chatterjee, Raj Rao Rajaram, Jillian Elaine Collier, Paul James Millington, Sylvie Cecile Laroze
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Patent number: 8668891Abstract: An exhaust system 10 for a vehicular lean-burn internal combustion engine comprises: (a) a first substrate monolith 6 comprising a SCR catalyst; (b) at least one second substrate monolith 4 comprising a catalytic washcoat coating comprising at least one platinum group metal (PGM) disposed upstream of the first substrate monolith; and (c) a third substrate monolith 2 disposed between the first substrate monolith and the or each second substrate monolith, wherein at least one PGM on the or each second substrate monolith 4 is liable to volatilise when the or each second substrate monolith 4 is exposed to relatively extreme conditions including relatively high temperatures, and wherein the third substrate monolith 2 comprises a washcoat coating comprising at least one metal oxide for trapping volatilised PGM.Type: GrantFiled: December 11, 2012Date of Patent: March 11, 2014Assignee: Johnson Matthey Public Limited CompanyInventors: Philip Gerald Blakeman, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Raj Rao Rajaram, Andrew Peter Walker
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Patent number: 8667785Abstract: 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 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: December 11, 2012Date of Patent: March 11, 2014Assignee: 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: 8661784Abstract: A method to improve NOx reduction in diesel engine exhausts by selective catalytic reduction using reductants comprising hydrocarbons, comprising passing the exhaust gases through a series of zones, said zones comprising a first zone in which a first catalyst is located that promotes HC SCR, to yield a first product gas; a second zone through which the first product gas is passed and in which a second catalyst is located that promotes the H2-promoted HC SCR reaction to produce a second product gas and a third zone through which the second product gas is passed and in which a third catalyst is located that promotes CO/H2 SCR to yield a final, NOx-depleted, exhaust gas, and admixing a reformate gas comprising CO and H2 with one or more of the exhaust gases, the first product gas and the second product gas. The use of the series of catalysts offers a sound alternative to urea-based SCR, without requiring a source and storage of urea.Type: GrantFiled: May 20, 2011Date of Patent: March 4, 2014Assignee: Johnson Matthey Public Limited CompanyInventors: Toseef Aslam, Valérie Marie Renée Houel, Raj Rao Rajaram
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Patent number: 8652429Abstract: 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 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 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: October 5, 2012Date of Patent: February 18, 2014Assignees: Johnson Matthey Public Limited Company, Johnson Matthey Japan Godo KaishaInventors: Satoshi Sumiya, Lifeng Wang, Hanako Oyamada, Philip Gerald Blakeman, Michael Gavin Brown, Sougato Chatterjee, Andrew Francis Chiffey, Jane Gast, Paul Richard Phillips, Raj Rao Rajaram, Andrew Peter Walker
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Publication number: 20140006277Abstract: A smart electronic wallet with reconfigurable multiple-account transaction card is provided. The system and method provide measures for storing a plurality of account identifiers from a plurality of traditional single-use transaction cards into a storage memory in a smart wallet. The system and method also provide for storing a reconfigurable multiple-account transaction card within the smart electronic wallet and allowing for it to be dynamically and selectively reconfigured for any one of the plurality of account identifiers stored within the smart electronic wallet. Additionally, a consumer is able to initiate a transfer or trade of transaction cards across different smart electronic wallet devices.Type: ApplicationFiled: August 14, 2012Publication date: January 2, 2014Inventor: RAJ RAO