The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2024
Filed:
Aug. 26, 2022
Applicant:
Johnson Matthey Public Limited Company, London, GB;
Inventors:
Shuhei Nagaoka, Tochigi, JP;
Xiaorui Zhang, Tochigi, JP;
Assignee:
Johnson Matthey Public Limited Company, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 21/04 (2006.01); B01D 53/94 (2006.01); B01J 21/06 (2006.01); B01J 23/02 (2006.01); B01J 23/10 (2006.01); B01J 23/42 (2006.01); B01J 23/44 (2006.01); B01J 23/46 (2006.01); B01J 23/56 (2006.01); B01J 23/58 (2006.01); B01J 23/63 (2006.01); B01J 35/00 (2024.01); B01J 35/04 (2006.01); F01N 3/10 (2006.01);
U.S. Cl.
CPC ...
B01J 23/58 (2013.01); B01D 53/945 (2013.01); B01J 21/04 (2013.01); F01N 3/101 (2013.01); B01D 2255/9032 (2013.01); B01D 2255/908 (2013.01); B01D 2257/40 (2013.01); B01D 2257/502 (2013.01); B01D 2257/702 (2013.01);
Abstract
A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first PGM component and a first alumina, wherein the first alumina is doped with a first dopant of at least 5 wt. %, and wherein the first dopant is selected from the group consisting of Zr, Ta, Mo, W, Ti, Nb, and a combination thereof.