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. 26, 2015
Filed:
Nov. 13, 2013
Johnson Matthey Public Limited Company, London, GB;
Paul Joseph Andersen, Plymouth Meeting, PA (US);
Ralf Dotzel, Nuremberg, DE;
Kwangmo Koo, Wayne, PA (US);
Rainer Leppelt, Lichtenfels, DE;
Jörg Werner Münch, Lichtenfels, DE;
Jeffery Scott Rieck, King of Prussia, PA (US);
Hubert Schedel, Küps, DE;
Duncan John William Winterborn, Cambridge, GB;
Todd Howard Ballinger, Downingtown, PA (US);
Julian Peter Cox, Malvern, PA (US);
Johnson Matthey Public Limited Company, London, GB;
Abstract
A three way catalyst includes an extruded solid body having by weight: 10-100% of at least one binder/matrix component; 5-90% of a zeolitic molecular sieve, a non-zeolitic molecular sieve or a mixture of any two or more thereof; and 0-80% optionally stabilised ceria. The catalyst also includes at least one precious metal and optionally at least one non-precious metal, wherein: (i) the at least one precious metal is carried in one or more coating layer(s) on the body surface; (ii) at least one metal is present throughout the body and at least one precious metal is carried in one or more coating layer(s) on a body surface; or (iii) at least one metal is present throughout the body, is present in a higher concentration at a body surface, and at least one precious metal is carried in one or more coating layer(s) on the body surface.