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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 11865497 B1

PDFFull Text
Date of Patent:
Jan. 09, 2024

Filed:

Oct. 29, 2021

Monometallic rhodium-containing four-way conversion catalysts for gasoline engine emissions treatment systems

Applicant:

Basf Corporation, Florham Park, NJ (US);

Inventors:

Janosch Cravillon, Hannover, DE;

Stephan Siemund, Pattensen, DE;

Attilio Siani, Shanghai, CN;

Thomas Schmitz, Wunstorf, DE;

Markus Kinne, Hannover, DE;

Assignee:

BASF Corporation, Florham Park, NJ (US);

Attorney:

DLA Piper LLP (US)

Primary Examiner:

Cam N Nguyen

Int. Cl.
CPC ...
B01J 21/04 (2006.01); B01J 21/12 (2006.01); B01J 23/46 (2006.01); B01J 23/63 (2006.01); B01J 35/00 (2006.01); B01J 35/04 (2006.01); B01J 35/10 (2006.01); F01N 3/035 (2006.01); F01N 3/10 (2006.01); B01D 53/94 (2006.01); B01J 37/02 (2006.01);
U.S. Cl.
CPC ...
B01D 53/945 (2013.01); B01D 53/9477 (2013.01); B01J 23/464 (2013.01); B01J 23/63 (2013.01); B01J 35/0006 (2013.01); B01J 35/04 (2013.01); B01J 35/108 (2013.01); B01J 37/0244 (2013.01); F01N 3/035 (2013.01); F01N 3/101 (2013.01); B01D 2255/1025 (2013.01); B01D 2255/2065 (2013.01); B01D 2255/407 (2013.01); B01D 2255/908 (2013.01); B01D 2255/9155 (2013.01); B01D 2258/014 (2013.01); F01N 2330/06 (2013.01); F01N 2510/06 (2013.01); F01N 2510/068 (2013.01); F01N 2510/0684 (2013.01); Y02T 10/12 (2013.01);
Abstract

Catalyzed particulate filters comprise three-way conversion (TWC) catalytic material, which comprises rhodium as the only platinum group metal, that permeates walls of a particulate filter. Such catalyzed particulate filters may be located downstream of close-coupled three-way conversion (TWC) composites in an emission treatment system downstream of a gasoline direct injection engine for treatment of an exhaust stream comprising hydrocarbons, carbon monoxide, nitrogen oxides, and particulates.

Find Patent Forward Citations

Cravillon, Janosch. (2024). Monometallic rhodium-containing four-way conversion catalysts for gasoline engine emissions treatment systems (U.S. Patent No. 11865497). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11865497

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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