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:
Mar. 05, 2019
Filed:
Jun. 23, 2017
Johnson Matthey Public Limited Company, London, GB;
Todd Howard Ballinger, Wayne, PA (US);
Hai-Ying Chen, Wayne, PA (US);
Julian Peter Cox, Wayne, PA (US);
Shadab Sharif Mulla, Audubon, PA (US);
Jeffery Scott Rieck, Wayne, PA (US);
Erich Conlan Weigert, Wayne, PA (US);
Johnson Matthey Public Limited Company, London, GB;
Abstract
A CO slip catalyst, for treating an exhaust gas from a lean burn internal combustion engine, is disclosed. The CO slip catalyst comprises palladium and a ceria-containing material. The invention also includes a method for oxidizing excess CO in an exhaust gas, wherein the excess CO results from the periodic contact of an upstream catalyst under rich exhaust conditions. The method comprises contacting the excess CO in the exhaust gas with a CO slip catalyst at a temperature in the range of 100 to 700° C.