Patents by Inventor Fabien A. Rioult

Fabien A. Rioult 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).

  • Catalyst substrate comprising radially-zoned coating
    Patent number: 11872542
    Abstract: A catalyst article is provided including a substrate including a plurality of passageways, and further including a first and a second oxidation region including a first and a second subset of said plurality of passageways. A first catalyst composition is coating at least a portion of each passageway of the first oxidation region and positioned as a sole PGM-containing catalyst layer, or a zoned portion thereof, or as a top PGM-containing catalyst layer, or a zoned portion thereof, in the first oxidation region. A second catalyst composition is coating at least a portion of each passageway of the second oxidation region and positioned as a sole PGM-containing catalyst layer, or a zoned portion thereof, or as a top PGM-containing catalyst layer, or a zoned portion thereof, in the second oxidation region. The Pt:Pd weight ratio is greater in the first catalyst composition than in the second catalyst composition.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: January 16, 2024
    Inventors: Weiyong Tang, Sandip D. Shah, Andreas R. Munding, Fabien A. Rioult, Ramesh Murlidhar Kakwani
  • CATALYST SUBSTRATE COMPRISING RADIALLY-ZONED COATING
    Publication number: 20220258137
    Abstract: A catalyst article is provided including a substrate including a plurality of passageways, and further including a first and a second oxidation region including a first and a second subset of said plurality of passageways. A first catalyst composition is coating at least a portion of each passageway of the first oxidation region and positioned as a sole PGM-containing catalyst layer, or a zoned portion thereof, or as a top PGM-containing catalyst layer, or a zoned portion thereof, in the first oxidation region. A second catalyst composition is coating at least a portion of each passageway of the second oxidation region and positioned as a sole PGM-containing catalyst layer, or a zoned portion thereof, or as a top PGM-containing catalyst layer, or a zoned portion thereof, in the second oxidation region. The Pt:Pd weight ratio is greater in the first catalyst composition than in the second catalyst composition.
    Type: Application
    Filed: July 9, 2020
    Publication date: August 18, 2022
    Applicant: BASF CORPORATION
    Inventors: Weiyong Tang, Sandip D. Shah, Andreas R. Munding, Fabien A. Rioult, Ramesh Murlidhar Kakwani
  • Zoned catalyst for diesel applications
    Patent number: 9333490
    Abstract: An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, an oxidation catalyst composite including a zoned diesel oxidation catalyst with a first washcoat zone with a Pt/Pd ratio that is less than 3:1 and a PGM loading at least twice that of a second washcoat zone.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: May 10, 2016
    Assignee: BASF Corporation
    Inventors: M. Shahjahan Kazi, Fabien A. Rioult, Stanley A. Roth, Kenneth E. Voss
  • Zoned Catalyst For Diesel Applications
    Publication number: 20140271429
    Abstract: An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, an oxidation catalyst composite including a zoned diesel oxidation catalyst with a first washcoat zone with a Pt/Pd ratio that is less than 3:1 and a PGM loading at least twice that of a second washcoat zone.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: BASF Corporation
    Inventors: M. Shahjahan Kazi, Fabien A. Rioult, Stanley A. Roth, Kenneth E. Voss