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:
Sep. 22, 2015
Filed:
Feb. 18, 2014
Johnson Matthey Public Limited Company, London, GB;
David Bergeal, Ware, GB;
Paul Richard Phillips, Bassingbourn, GB;
Andrew Francis Chiffey, Ware, GB;
John Benjamin Goodwin, Royston, GB;
Johnson Matthey Public Limited Company, London, GB;
Abstract
An oxidation catalyst for treating an exhaust gas produced by a combustion engine, wherein the oxidation catalyst comprises a substrate and a catalyst layer, wherein the catalyst layer comprises: a first support material; a first noble metal; and a second noble metal; wherein the catalyst layer is disposed on a surface of the substrate, and the catalyst layer has a non-uniform distribution of the first noble metal in a direction perpendicular to the surface of the substrate. The oxidation catalyst can be used to oxidize carbon monoxide (CO), hydrocarbons (HCs) and also oxides of nitrogen (NO) in such an exhaust gas.