Patents by Inventor Julian PRITZWALD-STEGMANN

Julian PRITZWALD-STEGMANN 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).

  • Lean NOtrap catalyst
    Patent number: 11179706
    Abstract: A lean NOx trap catalyst and its use in an emission treatment system for internal combustion engines is disclosed. The lean NOx trap catalyst comprises a first layer for storing nitrogen oxides (NOx) under lean exhaust gas conditions and releasing and/or reducing stored NOx during rich exhaust gas conditions, and a second layer, said second layer comprising a first zone for oxidizing carbon monoxide (CO) and/or hydrocarbons (HC), and a second zone for oxidizing nitric oxide (NO), and a substrate having an inlet end and an outlet end.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: November 23, 2021
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Gregory Gregori, Paul Phillips, Julian Pritzwald-Stegmann, Stuart David Reid, Wolfgang Strehlau
  • LEAN NOx TRAP CATALYST
    Publication number: 20200282385
    Abstract: A lean NOx trap catalyst and its use in an emission treatment system for internal combustion engines is disclosed. The lean NOx trap catalyst comprises a first layer for storing nitrogen oxides (NOx) under lean exhaust gas conditions and releasing and/or reducing stored NOx during rich exhaust gas conditions, and a second layer, said second layer comprising a first zone for oxidizing carbon monoxide (CO) and/or hydrocarbons (HC), and a second zone for oxidizing nitric oxide (NO), and a substrate having an inlet end and an outlet end.
    Type: Application
    Filed: March 6, 2020
    Publication date: September 10, 2020
    Inventors: Gregory Gregori, Paul Phillips, Julian Pritzwald-Stegmann, Stuart David Reid, Wolfgang Strehlau
  • NOx ADSORBER CATALYST
    Publication number: 20180311646
    Abstract: A lean NOx trap catalyst and its use in an emission treatment system for internal combustion engines is disclosed. The lean NOx trap catalyst comprises a first layer consisting essentially of one or more platinum group metals, a cerium-containing support material, and a first inorganic oxide.
    Type: Application
    Filed: March 28, 2018
    Publication date: November 1, 2018
    Inventors: Guy Richard CHANDLER, Paul Richard PHILLIPS, Julian PRITZWALD-STEGMANN, Stuart David REID, Wolfgang STREHLAU
  • NOx ADSORBER CATALYST
    Publication number: 20180169624
    Abstract: A lean NOx trap catalyst and its use in an emission treatment system for internal combustion engines is disclosed. The lean NOx trap catalyst comprises a first layer and a second layer.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 21, 2018
    Inventors: Guy Richard CHANDLER, Julian PRITZWALD-STEGMANN