Patents by Inventor Davion Onuga Clark

Davion Onuga Clark 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).

  • PASSIVE NITROGEN OXIDE ADSORBER CATALYST
    Publication number: 20200263585
    Abstract: The present invention relates to a catalyst comprising a carrier substrate of the length L, a passive nitrogen oxide adsorber and means to control the temperature of the carrier substrate, as well as a process for cleaning of an exhaust gas emitted from a lean burn engine.
    Type: Application
    Filed: October 19, 2018
    Publication date: August 20, 2020
    Applicant: UMICORE AG & CO. KG
    Inventors: Davion Onuga CLARK, Christoph HENGST
  • Passive nitrogen oxide adsorber catalyst
    Patent number: 10711674
    Abstract: The present invention relates to a catalyst comprising a carrier substrate of the length L, a passive nitrogen oxide adsorber and means to control the temperature of the carrier substrate, as well as a process for cleaning of an exhaust gas emitted from a lean burn engine.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: July 14, 2020
    Assignee: UMICORE AG & CO. KG
    Inventors: Davion Onuga Clark, Christoph Hengst
  • PASSIVE NITROGEN OXIDE ADSORBER CATALYST
    Publication number: 20190120109
    Abstract: The present invention relates to a catalyst comprising a carrier substrate of the length L, a passive nitrogen oxide adsorber and means to control the temperature of the carrier substrate, as well as a process for cleaning of an exhaust gas emitted from a lean burn engine.
    Type: Application
    Filed: October 20, 2017
    Publication date: April 25, 2019
    Applicant: UMICORE AG & CO. KG
    Inventors: Davion Onuga CLARK, Christoph HENGST
  • Three-way catalyst having an upstream single-layer catalyst
    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
  • THREE-WAY CATALYST HAVING AN UPSTREAM SINGLE-LAYER CATALYST
    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
  • HC adsorber with OBD capability
    Patent number: 8448421
    Abstract: A device and process for storing hydrocarbons as part of an exhaust emission control system and diagnosing the state of said device based on the incorporation of reactive metal species within the porous microstructure of the associated hydrocarbon adsorbent.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: May 28, 2013
    Assignee: Umicore AG & Co. KG
    Inventors: Owen Herman Bailey, Davion Onuga Clark, David Henry Moser
  • HC Adsorber with OBD Capability
    Publication number: 20110192138
    Abstract: A device and process for storing hydrocarbons as part of an exhaust emission control system and diagnosing the state of said device based on the incorporation of reactive metal species within the porous microstructure of the associated hydrocarbon adsorbent.
    Type: Application
    Filed: February 11, 2010
    Publication date: August 11, 2011
    Inventors: Owen Herman Bailey, Davion Onuga Clark, David Henry Moser