Patents by Inventor John G. Nunan
John G. Nunan 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: 11648535Abstract: The present invention relates to a three-way catalyst (TWC) for treatment of exhaust gases from internal combustion engines operated with a predominantly stoichiometric air/fuel ratio, so called spark ignited engines.Type: GrantFiled: December 8, 2021Date of Patent: May 16, 2023Assignee: UMICORE AG & CO. KGInventors: Masashi Nakashima, John G. Nunan, Ryan J. Andersen
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Publication number: 20220152591Abstract: The present invention relates to a three-way catalyst (TWC) for treatment of exhaust gases from internal combustion engines operated with a predominantly stoichiometric air/fuel ratio, so called spark ignited engines.Type: ApplicationFiled: December 8, 2021Publication date: May 19, 2022Applicant: UMICORE AG & CO. KGInventors: Masashi NAKASHIMA, John G. NUNAN, Ryan J. Andersen
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Patent number: 11331651Abstract: The present invention relates to a catalyst comprising a carrier substrate of the length L extending between substrate ends a and b and three washcoat zones A, B and C wherein washcoat zone A comprises one or more first platinum group metals and extends starting from substrate end a over a part of the length L, washcoat zone C comprises one or more first platinum group metals and extends starting from substrate end b over a part of the length L, and washcoat zone B comprises the same components as washcoat zone A and in addition, one or more second platinum group metals and extends between washcoat zones A and C, wherein L=LA+LB+LC, wherein LA is the length of washcoat zone A, LB is the length of substrate length B and LC is the length of substrate length C.Type: GrantFiled: September 6, 2018Date of Patent: May 17, 2022Assignee: UMICORE AG & CO. KGInventors: Ryan J. Andersen, John G. Nunan, Curt M. Ellis, Geon Seog Son
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Patent number: 11224861Abstract: The present invention relates to a three-way catalyst (TWC) for treatment of exhaust gases from internal combustion engines operated with a predominantly stoichiometric air/fuel ratio, so called spark ignited engines.Type: GrantFiled: June 8, 2020Date of Patent: January 18, 2022Assignee: UMICORE AG & CO. KGInventors: Masashi Nakashima, John G. Nunan, Ryan J. Andersen
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Publication number: 20210379567Abstract: The present invention relates to a three-way catalyst (TWC) for treatment of exhaust gases from internal combustion engines operated with a predominantly stoichiometric air/fuel ratio, so called spark ignited engines.Type: ApplicationFiled: June 8, 2020Publication date: December 9, 2021Applicant: UMICORE AG & CO. KGInventors: Masashi NAKASHIMA, John G. NUNAN, Ryan J. ANDERSEN
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Publication number: 20210213425Abstract: The present invention relates to a three-way catalyst (TWC) for treatment of exhaust gases of internal combustion engines operated with a predominantly stoichiometric air/fuel ratio, so called spark ignited engines.Type: ApplicationFiled: January 13, 2020Publication date: July 15, 2021Applicant: UMICORE AG & CO. KGInventors: Masashi NAKASHIMA, John G. NUNAN, Ryan J. ANDERSEN, Curt M. ELLIS
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Publication number: 20200078769Abstract: The present invention relates to a catalyst comprising a carrier substrate of the length L extending between substrate ends a and b and three washcoat zones A, B and C wherein washcoat zone A comprises one or more first platinum group metals and extends starting from substrate end a over a part of the length L, washcoat zone C comprises one or more first platinum group metals and extends starting from substrate end b over a part of the length L, and washcoat zone B comprises the same components as washcoat zone A and in addition, one or more second platinum group metals and extends between washcoat zones A and C, wherein L=LA+LB+LC, wherein LA is the length of washcoat zone A, LB is the length of substrate length B and LC is the length of substrate length C.Type: ApplicationFiled: September 6, 2018Publication date: March 12, 2020Applicant: UMICORE AG & CO. KGInventors: Ryan J. ANDERSEN, John G. NUNAN, Curt M. ELLIS, Geon Seog SON
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Publication number: 20190383185Abstract: An apparatus for reactivating a sulfur poisoned oxidation catalyst operating in the exhaust of a lean burn, methane source (as in natural gas) fueled combustion device as in an engine. The reactivation includes desulfation of the poisoned catalyst through the use of a CO supplementation apparatus in communication with the control unit that is adapted to supplement the CO content in the exhaust reaching the catalyst, while avoiding an overall rich exhaust atmosphere at the catalyst. An example includes the added supply of hydrocarbons to one or more, preferably less than all, of the lean burn engine's combustion chambers such as by an ECU controlled extra supply of NG (e.g., CNG) to some of the combustion chambers.Type: ApplicationFiled: January 29, 2018Publication date: December 19, 2019Applicant: UMICORE AG & CO. KGInventors: Xue HAN, John G. NUNAN
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Patent number: 8968690Abstract: Disclosed herein is a layered three-way catalytic system being separated in a front and a rear portion having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides. Provided is a catalyst composite comprising a single front catalytic layer and two rear catalytic layers in conjunction with a substrate, where the single font layer and the rear bottom layer comprise a Pd component, the rear top layer comprises a Rh component, and the rear bottom layer is substantially free of an oxygen storage component (OSC).Type: GrantFiled: November 21, 2011Date of Patent: March 3, 2015Assignee: Umicore AG & Co. KGInventors: John G. Nunan, Raoul Klingmann, Ryan J. Andersen, Davion Onuga Clark, David Henry Moser
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Publication number: 20130287660Abstract: Disclosed herein is a layered three-way catalytic system being separated in a front and a rear portion having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides. Provided is a catalyst composite comprising a single front catalytic layer and two rear catalytic layers in conjunction with a substrate, where the single font layer and the rear bottom layer comprise a Pd component, the rear top layer comprises a Rh component, and the rear bottom layer is substantially free of an oxygen storage component (OSC).Type: ApplicationFiled: November 21, 2011Publication date: October 31, 2013Applicant: UMICORE AG & CO. KGInventors: John G. Nunan, Raoul Klingmann, Ryan J. Andersen, Davion Onuga Clark, David Henry Moser
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Patent number: 8557204Abstract: Disclosed herein is a layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides being separated in a front and rear portion is disclosed. Provided is a catalytic composite material of a single front and two rear layers in conjunction with a substrate, where each of the layers includes a support, all layers comprise a platinum group metal component, and the rear bottom layer is substantially free of an oxygen storage component (OSC).Type: GrantFiled: November 22, 2010Date of Patent: October 15, 2013Assignee: Umicore AG & Co. KGInventors: John G. Nunan, Raoul Klingmann, Ryan Andersen, Davion Clark, David H. Moser
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Patent number: 8529853Abstract: The present invention relates to application of catalysts for the Selective Catalytic Reduction of oxides of Nitrogen using N-containing reductant. The catalysts are characterized as phase pure lattice oxide materials into which catalytically active cations are incorporated at high levels of dispersion such that conventional analysis reveals a highly phase pure material. The materials are further characterized by high activity, hydrothermal durability and poison tolerance in the intended application.Type: GrantFiled: March 19, 2011Date of Patent: September 10, 2013Assignee: Umicore AG & Co. KGInventors: Barry W. L. Southward, John G. Nunan
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Patent number: 8394348Abstract: Disclosed herein is a layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides being separated in a front and rear portion is disclosed. Provided is a catalytic material of at least two front and two rear layers in conjunction with a substrate, where each of the layers includes a support, all layers comprise a platinum group metal component, and the rear bottom layer is substantially free of a ceria-containing oxygen storage component (OSC).Type: GrantFiled: October 31, 2012Date of Patent: March 12, 2013Assignee: Umicore AG & Co. KGInventors: John G. Nunan, Raoul Klingmann, Ryan Andersen, Davion Clark, David Moser
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Publication number: 20130058848Abstract: Disclosed herein is a layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides being separated in a front and rear portion is disclosed. Provided is a catalytic material of at least two front and two rear layers in conjunction with a substrate, where each of the layers includes a support, all layers comprise a platinum group metal component, and the rear bottom layer is substantially free of a ceria-containing oxygen storage component (OSC).Type: ApplicationFiled: October 31, 2012Publication date: March 7, 2013Applicant: Umicore AG & Co. KGInventors: John G. Nunan, Raoul Klingmann, Ryan Andersen, Davion Clark, David Moser
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Patent number: 8323599Abstract: Disclosed herein is a layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides being separated in a front and rear portion is disclosed. Provided is a catalytic material of at least two front and two rear layers in conjunction with a substrate, where each of the layers includes a support, all layers comprise a platinum group metal component, and the rear bottom layer is substantially free of a ceria-containing oxygen storage component (OSC).Type: GrantFiled: November 22, 2010Date of Patent: December 4, 2012Assignee: Umicore AG & Co. KGInventors: John G. Nunan, Raoul Klingmann, Ryan Andersen, Davion Clark, David H. Moser
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Publication number: 20120294792Abstract: The present invention relates to application of catalysts for the Selective Catalytic Reduction of oxides of Nitrogen using N-containing reductant. The catalysts are characterised as phase pure lattice oxide materials into which catalytically active cations are incorporated at high levels of dispersion such that conventional analysis reveals a highly phase pure material. The materials are further characterised by high activity, hydrothermal durability and poison tolerance in the intended application.Type: ApplicationFiled: March 19, 2011Publication date: November 22, 2012Inventors: Barry W. L. Southward, John G. Nunan
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Patent number: 8246923Abstract: There is described Pd enriched diesel oxidation catalysts and their application as catalysts for the oxidation of CO and HC emissions from a compression ignition/diesel engine. The catalysts are characterized by increased performance and hydrothermal durability these goals being achieved by employing a layered design to eliminate low temperature catalyst quenching by toxic HC species in the exhaust stream.Type: GrantFiled: May 18, 2009Date of Patent: August 21, 2012Assignee: Umicore AG & Co. KGInventors: Barry W. L. Southward, John G. Nunan
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Publication number: 20120128558Abstract: Disclosed herein is a layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides being separated in a front and rear portion is disclosed. Provided is a catalytic material of at least two front and two rear layers in conjunction with a substrate, where each of the layers includes a support, all layers comprise a platinum group metal component, and the rear bottom layer is substantially free of a ceria-containing oxygen storage component (OSC).Type: ApplicationFiled: November 22, 2010Publication date: May 24, 2012Inventors: John G. Nunan, Raoul Klingmann, Ryan Andersen, Davion Clark, David H. Moser
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Publication number: 20120128557Abstract: Disclosed herein is a layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides being separated in a front and rear portion is disclosed. Provided is a catalytic composite material of a single front and two rear layers in conjunction with a substrate, where each of the layers includes a support, all layers comprise a platinum group metal component, and the rear bottom layer is substantially free of an oxygen storage component (OSC).Type: ApplicationFiled: November 22, 2010Publication date: May 24, 2012Inventors: John G. Nunan, Raoul Klingmann, Ryan Andersen, Davion Clark, David H. Moser
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Publication number: 20110236282Abstract: The present invention relates to application of catalysts for the Selective Catalytic Reduction of oxides of Nitrogen using N-containing reductant. The catalysts are characterised as phase pure lattice oxide materials into which catalytically active cations are incorporated at high levels of dispersion such that conventional analysis reveals a highly phase pure material. The materials are further characterised by high activity, hydrothermal durability and poison tolerance in the intended application.Type: ApplicationFiled: March 26, 2010Publication date: September 29, 2011Applicant: UMICORE AG & CO. KGInventors: Barry W. L. SOUTHWARD, John G. Nunan