Patents by Inventor David Youngren

David Youngren 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).

  • CATALYZED SOOT FILTER WITH REDUCED AMMONIA OXIDATION
    Publication number: 20230027701
    Abstract: The present disclosure is directed to a system for treating an exhaust gas stream from an engine, which includes a diesel oxidation catalyst (DOC) located downstream of the engine and adapted for oxidation of hydrocarbons and carbon monoxide, an injector adapted for the addition of a reductant to the exhaust gas stream located downstream of the DOC, a catalyzed soot filter (CSF) located downstream of the injector, and a selective catalytic reduction component adapted for the oxidation of nitrogen oxides located downstream of the CSF. The CSF is adapted for oxidizing hydrocarbons and includes a selective oxidation catalyst composition on a filter with high selectivity ratio for hydrocarbon oxidation:ammonia oxidation (e.g., at least 0.6).
    Type: Application
    Filed: September 26, 2022
    Publication date: January 26, 2023
    Applicant: BASF CORPORATION
    Inventors: Kevin Hallstrom, David Youngren, Yuejin Li
  • Catalyzed soot filter with reduced ammonia oxidation
    Patent number: 11486288
    Abstract: The present disclosure is directed to a system for treating an exhaust gas stream from an engine, which includes a diesel oxidation catalyst (DOC) located downstream of the engine and adapted for oxidation of hydrocarbons and carbon monoxide, an injector adapted for the addition of a reductant to the exhaust gas stream located downstream of the DOC, a catalyzed soot filter (CSF) located downstream of the injector, and a selective catalytic reduction component adapted for the oxidation of nitrogen oxides located downstream of the CSF. The CSF is adapted for oxidizing hydrocarbons and includes a selective oxidation catalyst composition on a filter with high selectivity ratio for hydrocarbon oxidation:ammonia oxidation (e.g., at least 0.6).
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: November 1, 2022
    Assignee: BASF CORPORATION
    Inventors: Kevin Hallstrom, David Youngren, Yuejin Li
  • CATALYZED SOOT FILTER WITH REDUCED AMMONIA OXIDATION
    Publication number: 20200263586
    Abstract: The present disclosure is directed to a system for treating an exhaust gas stream from an engine, which includes a diesel oxidation catalyst (DOC) located downstream of the engine and adapted for oxidation of hydrocarbons and carbon monoxide, an injector adapted for the addition of a reductant to the exhaust gas stream located downstream of the DOC, a catalyzed soot filter (CSF) located downstream of the injector, and a selective catalytic reduction component adapted for the oxidation of nitrogen oxides located downstream of the CSF. The CSF is adapted for oxidizing hydrocarbons and includes a selective oxidation catalyst composition on a filter with high selectivity ratio for hydrocarbon oxidation: ammonia oxidation (e.g., at least 0.6).
    Type: Application
    Filed: May 8, 2020
    Publication date: August 20, 2020
    Inventors: Kevin Hallstrom, David Youngren, Yuejin Li