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. 26, 2016
Filed:
Apr. 28, 2014
Applicant:
Johnson Matthey Public Limited Company, London, GB;
Inventors:
Paul Richard Phillips, Royston, GB;
Guy Richard Chandler, Cambridge, GB;
Keith Anthony Flanagan, Cambridge, GB;
Assignee:
Johnson Matthey Public Limited Company, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); B01D 53/94 (2006.01); B01J 29/00 (2006.01); F01N 3/20 (2006.01); F01N 3/035 (2006.01); B01J 37/02 (2006.01); B01J 37/30 (2006.01); B01J 35/00 (2006.01); B01J 29/76 (2006.01); B01J 29/85 (2006.01); B01J 35/04 (2006.01); B01J 29/072 (2006.01); B01J 29/46 (2006.01); B01J 29/72 (2006.01); B01J 29/06 (2006.01);
U.S. Cl.
CPC ...
B01D 53/9418 (2013.01); B01J 29/005 (2013.01); B01J 29/072 (2013.01); B01J 29/46 (2013.01); B01J 29/723 (2013.01); B01J 29/76 (2013.01); B01J 29/85 (2013.01); B01J 35/0006 (2013.01); B01J 35/04 (2013.01); B01J 37/0244 (2013.01); B01J 37/0246 (2013.01); B01J 37/30 (2013.01); F01N 3/035 (2013.01); F01N 3/2066 (2013.01); B01D 2255/50 (2013.01); B01J 37/0248 (2013.01); B01J 2029/062 (2013.01); F01N 2510/063 (2013.01); F01N 2510/0682 (2013.01); Y02T 10/24 (2013.01);
Abstract
Provided is an SCRF article having different SCR catalysts compositions disposed on a wall-flow filter substrate in zones that are arranged in series with respect to the inlet and outlet faces of the substrate. Also provided is method of reducing backpressure and ammonia slip that involves the use of such SCRF articles.