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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 12296298 B1

PDFFull Text
Date of Patent:
May. 13, 2025

Filed:

Jan. 26, 2021

Double-layer three-way catalyst with further improved ageing stability

Applicant:

Umicore Ag & Co. KG, Hanau-Wolfgang, DE;

Inventors:

Joel Despres, Rodenbach, DE;

Martin Roesch, Rodgau, DE;

Joerg-Michael Richter, Frankfurt, DE;

Carolin Braun, Langen, DE;

Marcus Schmidt, Ginsheim, DE;

Nicole Schichtel, Butzbach Hoch-Weisel, DE;

Assignee:

UMICORE AG & CO. KG, Hanau-Wolfgang, DE;

Attorney:

Smith, Gambrell & Russell, LLP

Primary Examiner:

Cam N Nguyen

Int. Cl.
CPC ...
B01J 21/04 (2006.01); B01D 53/94 (2006.01); B01J 21/06 (2006.01); B01J 23/10 (2006.01); B01J 23/42 (2006.01); B01J 23/44 (2006.01); B01J 23/46 (2006.01); B01J 23/63 (2006.01); B01J 35/00 (2006.01); B01J 35/10 (2006.01); F01N 3/10 (2006.01); F01N 3/28 (2006.01);
U.S. Cl.
CPC ...
B01D 53/945 (2013.01); B01J 23/10 (2013.01); B01J 23/44 (2013.01); B01J 23/464 (2013.01); B01J 35/19 (2024.01); 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 2255/2061 (2013.01); B01D 2255/2063 (2013.01); B01D 2255/2065 (2013.01); B01D 2255/20715 (2013.01); B01D 2255/2092 (2013.01); B01D 2255/407 (2013.01); B01D 2255/9022 (2013.01); B01D 2255/908 (2013.01); F01N 2370/02 (2013.01);
Abstract

The present invention relates to a catalyst comprising two layers on an inert catalyst carrier, a layer A containing at least palladium as a platinum group metal, in addition to a cerium/zirconium/lanthanum/yttrium mixed oxide, and a layer B, which is applied to layer A, containing at least rhodium as the platinum group metal, in addition to a cerium/zirconium/lanthanum/yttrium mixed oxide.

Find Patent Forward Citations

Despres, Joel. (2025). Double-layer three-way catalyst with further improved ageing stability (U.S. Patent No. 12296298). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12296298

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

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