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. 09, 2023
Filed:
Jul. 26, 2019
Applicant:
Johnson Matthey Public Limited Company, London, GB;
Inventors:
Assignee:
Johnson Matthey Public Limited Company, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 21/04 (2006.01); B01J 21/06 (2006.01); B01J 21/08 (2006.01); B01J 21/10 (2006.01); B01J 21/12 (2006.01); B01J 21/14 (2006.01); B01J 23/10 (2006.01); B01J 23/40 (2006.01); B01J 23/42 (2006.01); B01J 23/44 (2006.01); B01J 23/46 (2006.01); B01J 35/02 (2006.01); F01N 3/10 (2006.01); F01N 3/28 (2006.01); B82Y 30/00 (2011.01); B01J 23/00 (2006.01); B82Y 40/00 (2011.01);
U.S. Cl.
CPC ...
B01J 23/44 (2013.01); B01J 23/464 (2013.01); B01J 35/023 (2013.01); B01J 35/026 (2013.01); F01N 3/101 (2013.01); F01N 3/2803 (2013.01); B01J 21/04 (2013.01); B01J 23/002 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); F01N 2370/02 (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; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first platinum group metal (PGM) component, wherein the first PGM component comprises PGM nanoparticles, wherein the PGM nanoparticles have an average particle size of about 1 to about 20 nm with a standard deviation (SD) no more than 1 nm.