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. 13, 2025
Filed:
Oct. 25, 2023
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:
Primary Examiner:
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.