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:
Feb. 09, 2016
Filed:
Jul. 26, 2012
John L. Casci, Cleveland, GB;
Hai-ying Chen, Conshohocken, PA (US);
Joseph Michael Fedeyko, Glen Mills, PA (US);
Jillian Elaine Collier, Reading, GB;
Raj Rao Rajaram, Berkshire, GB;
David Thompsett, Reading, GB;
Robert P. Hodgkins, Colima, MX;
John L. Casci, Cleveland, GB;
Hai-Ying Chen, Conshohocken, PA (US);
Joseph Michael Fedeyko, Glen Mills, PA (US);
Jillian Elaine Collier, Reading, GB;
Raj Rao Rajaram, Berkshire, GB;
David Thompsett, Reading, GB;
Robert P. Hodgkins, Colima, MX;
Johnson Matthey Public Limited Company, London, GB;
Abstract
A catalyst composition is provided having a CHA crystal structure; about 0.5 to about 5.0 mol % phosphorus; and SiOand AlOin a mole ratio of about 5 to about 40. The catalyst composition is capable of NOx conversion at elevated temperatures. A catalytically active washcoat includes such catalyst compositions and one or more promoters or stabilizers, and may be applied to a monolith substrate to produce a catalytically active article. Methods of reducing NOx employing the catalyst compositions are also provided.