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. 16, 2016
Filed:
Dec. 16, 2013
Louise Arnold, Melbourn, GB;
Robert Brisley, Duxford, GB;
Guy Richard Chandler, Little Eversden, GB;
Andrew Francis Chiffey, Ware, GB;
Keith Anthony Flanagan, Cambridge, GB;
David Greenwell, Lower Cambourne, GB;
Christopher Morgan, Royston, GB;
Louise Arnold, Melbourn, GB;
Robert Brisley, Duxford, GB;
Guy Richard Chandler, Little Eversden, GB;
Andrew Francis Chiffey, Ware, GB;
Keith Anthony Flanagan, Cambridge, GB;
David Greenwell, Lower Cambourne, GB;
Christopher Morgan, Royston, GB;
Johnson Matthey Public Limited Company, London, GB;
Abstract
A filter for filtering particulate matter (PM) from exhaust gas emitted from a compression ignition engine, which filter comprising a porous substrate having inlet surfaces and outlet surfaces, wherein the inlet surfaces are separated from the outlet surfaces by a porous structure containing pores of a first mean pore size, wherein the porous substrate is coated with a wash coat comprising a plurality of solid particles comprising a molecular sieve promoted with at least one metal wherein the porous structure of the wash coated porous substrate contains pores of a second mean pore size, and wherein the second mean pore size is less than the first mean pore size.