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).

  • Patent number: 11648535
    Abstract: 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: Grant
    Filed: December 8, 2021
    Date of Patent: May 16, 2023
    Assignee: UMICORE AG & CO. KG
    Inventors: Masashi Nakashima, John G. Nunan, Ryan J. Andersen
  • Publication number: 20220152591
    Abstract: 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: Application
    Filed: December 8, 2021
    Publication date: May 19, 2022
    Applicant: UMICORE AG & CO. KG
    Inventors: Masashi NAKASHIMA, John G. NUNAN, Ryan J. Andersen
  • Patent number: 11331651
    Abstract: 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: Grant
    Filed: September 6, 2018
    Date of Patent: May 17, 2022
    Assignee: UMICORE AG & CO. KG
    Inventors: Ryan J. Andersen, John G. Nunan, Curt M. Ellis, Geon Seog Son
  • Patent number: 11224861
    Abstract: 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: Grant
    Filed: June 8, 2020
    Date of Patent: January 18, 2022
    Assignee: UMICORE AG & CO. KG
    Inventors: Masashi Nakashima, John G. Nunan, Ryan J. Andersen
  • Publication number: 20210379567
    Abstract: 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: Application
    Filed: June 8, 2020
    Publication date: December 9, 2021
    Applicant: UMICORE AG & CO. KG
    Inventors: Masashi NAKASHIMA, John G. NUNAN, Ryan J. ANDERSEN
  • Publication number: 20210213425
    Abstract: 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: Application
    Filed: January 13, 2020
    Publication date: July 15, 2021
    Applicant: UMICORE AG & CO. KG
    Inventors: Masashi NAKASHIMA, John G. NUNAN, Ryan J. ANDERSEN, Curt M. ELLIS
  • Publication number: 20200078769
    Abstract: 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: Application
    Filed: September 6, 2018
    Publication date: March 12, 2020
    Applicant: UMICORE AG & CO. KG
    Inventors: Ryan J. ANDERSEN, John G. NUNAN, Curt M. ELLIS, Geon Seog SON
  • Publication number: 20190383185
    Abstract: 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: Application
    Filed: January 29, 2018
    Publication date: December 19, 2019
    Applicant: UMICORE AG & CO. KG
    Inventors: Xue HAN, John G. NUNAN
  • Patent number: 8968690
    Abstract: 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: Grant
    Filed: November 21, 2011
    Date of Patent: March 3, 2015
    Assignee: Umicore AG & Co. KG
    Inventors: John G. Nunan, Raoul Klingmann, Ryan J. Andersen, Davion Onuga Clark, David Henry Moser
  • Publication number: 20130287660
    Abstract: 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: Application
    Filed: November 21, 2011
    Publication date: October 31, 2013
    Applicant: UMICORE AG & CO. KG
    Inventors: John G. Nunan, Raoul Klingmann, Ryan J. Andersen, Davion Onuga Clark, David Henry Moser
  • Patent number: 8557204
    Abstract: 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: Grant
    Filed: November 22, 2010
    Date of Patent: October 15, 2013
    Assignee: Umicore AG & Co. KG
    Inventors: John G. Nunan, Raoul Klingmann, Ryan Andersen, Davion Clark, David H. Moser
  • Patent number: 8529853
    Abstract: 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: Grant
    Filed: March 19, 2011
    Date of Patent: September 10, 2013
    Assignee: Umicore AG & Co. KG
    Inventors: Barry W. L. Southward, John G. Nunan
  • Patent number: 8394348
    Abstract: 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: Grant
    Filed: October 31, 2012
    Date of Patent: March 12, 2013
    Assignee: Umicore AG & Co. KG
    Inventors: John G. Nunan, Raoul Klingmann, Ryan Andersen, Davion Clark, David Moser
  • Publication number: 20130058848
    Abstract: 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: Application
    Filed: October 31, 2012
    Publication date: March 7, 2013
    Applicant: Umicore AG & Co. KG
    Inventors: John G. Nunan, Raoul Klingmann, Ryan Andersen, Davion Clark, David Moser
  • Patent number: 8323599
    Abstract: 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: Grant
    Filed: November 22, 2010
    Date of Patent: December 4, 2012
    Assignee: Umicore AG & Co. KG
    Inventors: John G. Nunan, Raoul Klingmann, Ryan Andersen, Davion Clark, David H. Moser
  • Publication number: 20120294792
    Abstract: 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: Application
    Filed: March 19, 2011
    Publication date: November 22, 2012
    Inventors: Barry W. L. Southward, John G. Nunan
  • Patent number: 8246923
    Abstract: 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: Grant
    Filed: May 18, 2009
    Date of Patent: August 21, 2012
    Assignee: Umicore AG & Co. KG
    Inventors: Barry W. L. Southward, John G. Nunan
  • Publication number: 20120128557
    Abstract: 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: Application
    Filed: November 22, 2010
    Publication date: May 24, 2012
    Inventors: John G. Nunan, Raoul Klingmann, Ryan Andersen, Davion Clark, David H. Moser
  • Publication number: 20120128558
    Abstract: 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: Application
    Filed: November 22, 2010
    Publication date: May 24, 2012
    Inventors: John G. Nunan, Raoul Klingmann, Ryan Andersen, Davion Clark, David H. Moser
  • Publication number: 20110236282
    Abstract: 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: Application
    Filed: March 26, 2010
    Publication date: September 29, 2011
    Applicant: UMICORE AG & CO. KG
    Inventors: Barry W. L. SOUTHWARD, John G. Nunan