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:
Jan. 08, 2019
Filed:
Feb. 02, 2017
Johnson Matthey Public Limited Company, London, GB;
Paul Joseph Andersen, Wayne, PA (US);
Hai-Ying Chen, Wayne, PA (US);
Julian Peter Cox, Wayne, PA (US);
Kevin Doura, Wayne, PA (US);
Joseph Michael Fedeyko, Wayne, PA (US);
Erich Conlan Weigert, Wayne, PA (US);
Johnson Matthey Public Limited Company, London, GB;
Abstract
Provided is an ammonia slip catalyst article having supported palladium in a top or upstream layer for oxidation of carbon monoxide and/or hydrocarbons, an SCR catalyst either in the top layer or in a separate lower or downstream layer, and an ammonia oxidation catalyst in a bottom layer. Also provided are methods for treating an exhaust gas using the catalyst article, wherein the treatment involves reducing the concentrations of ammonia and optionally carbon monoxide and/or hydrocarbons in the exhaust gas.