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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 12296319 B1

PDFFull Text
Date of Patent:
May. 13, 2025

Filed:

Oct. 25, 2023

Composite, zoned oxidation catalys for a compression ignition internal combustion engine

Applicant:

Johnson Matthey Public Limited Company, London, GB;

Inventors:

Andrew Chiffey, Royston, GB;

Kieran Cole, Rosyton, GB;

Oliver Cooper, Royston, GB;

Christopher Daly, Royston, GB;

Lee Gilbert, Royston, GB;

Robert Hanley, Royston, GB;

David Micallef, Royston, GB;

Francois Moreau, Royston, GB;

Paul Phillips, Royston, GB;

George Platt, Royston, GB;

Assignee:

Johnson Matthey Public Limited Company, London, GB;

Attorney:

BakerHostetler

Primary Examiner:

Cam N Nguyen

Int. Cl.
CPC ...
B01J 21/04 (2006.01); B01D 53/94 (2006.01); B01J 21/08 (2006.01); B01J 23/02 (2006.01); B01J 23/42 (2006.01); B01J 23/44 (2006.01); B01J 23/46 (2006.01); B01J 23/58 (2006.01); B01J 37/02 (2006.01); F01N 3/02 (2006.01); F01N 3/023 (2006.01); F01N 3/10 (2006.01);
U.S. Cl.
CPC ...
B01J 23/44 (2013.01); B01J 21/08 (2013.01); B01J 23/42 (2013.01); B01J 37/0215 (2013.01); F01N 3/0231 (2013.01); F01N 3/10 (2013.01); F01N 2570/10 (2013.01); F01N 2570/12 (2013.01); F01N 2570/14 (2013.01);
Abstract

A composite oxidation catalyst for use in an exhaust system for treating an exhaust gas produced by a vehicular compression ignition internal combustion engine is disclosed. The composite oxidation catalyst comprises a honeycomb flow-through substrate monolith and two catalyst washcoat zones arranged axially in series on and along the substrate surface.

Find Patent Forward Citations

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Chiffey, Andrew. (2025). Composite, zoned oxidation catalys for a compression ignition internal combustion engine (U.S. Patent No. 12296319). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12296319

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

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