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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.:

US 12746532 B1

PDFFull Text
Date of Patent:
Sep. 29, 2026

Filed:

Mar. 18, 2020

Layered tri-metallic catalytic article and method of manufacturing the catalytic article

Applicant:

Basf Mobile Emissions Catalysts Llc, Iselin, NJ (US);

Inventors:

Aleksei Vjunov, Iselin, NJ (US);

Michel Deeba, East Brunswick, NJ (US);

Xiaolai Zheng, Iselin, NJ (US);

Patrick L. Burk, Freehold, NJ (US);

Assignee:

BASF Mobile Emissions Catalysts LLC, Iselin, NJ (US);

Attorney:

DLA Piper LLP (US)

Primary Examiner:

Anthony J Zimmer

Assistant Examiner:

Logan undefined Laclair

Int. Cl.
CPC ...
B01J 23/46 (2006.01); B01D 53/94 (2006.01); B01J 21/04 (2006.01); B01J 21/16 (2006.01); B01J 23/02 (2006.01); B01J 23/10 (2006.01); B01J 23/44 (2006.01); B01J 35/00 (2024.01); B01J 35/56 (2024.01); B01J 37/03 (2006.01); B01J 37/08 (2006.01); F01N 3/10 (2006.01); F01N 3/28 (2006.01);
U.S. Cl.
CPC ...
B01J 23/464 (2013.01); B01D 53/945 (2013.01); B01D 53/9468 (2013.01); B01D 53/9477 (2013.01); B01J 21/04 (2013.01); B01J 21/16 (2013.01); B01J 23/02 (2013.01); B01J 23/10 (2013.01); B01J 23/44 (2013.01); B01J 35/19 (2024.01); B01J 35/56 (2024.01); B01J 37/038 (2013.01); B01J 37/082 (2013.01); F01N 3/101 (2013.01); F01N 3/2803 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/1025 (2013.01); B01D 2255/2042 (2013.01); B01D 2255/2065 (2013.01); B01D 2255/908 (2013.01); F01N 3/2842 (2013.01); F01N 2370/02 (2013.01);
Abstract

The present invention provides a tri-metallic layered catalytic article comprising a first layer comprising palladium supported on at least one of an oxygen storage component, and an alumina component; a second layer comprising platinum and rhodium, each supported on at least one of an oxygen storage component and a zirconia component; and a substrate, wherein the weight ratio of palladium to platinum is in the range of 1.0:0.4 to 1:2. The present invention also provides a process for preparing the tri-metallic layered catalytic article, an exhaust system for internal combustion engine and use of the tri-metallic layered catalytic article for purifying a gaseous exhaust stream.

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