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:
Jun. 17, 2014
Filed:
Apr. 25, 2011
Applicants:
Claus Friedrich Goersmann, Herts, GB;
Paul Richard Phillips, Herts, GB;
Philip Gerald Blakeman, Cambridge, GB;
Guy Richard Chandler, Cambridge, GB;
Inventors:
Claus Friedrich Goersmann, Herts, GB;
Paul Richard Phillips, Herts, GB;
Philip Gerald Blakeman, Cambridge, GB;
Guy Richard Chandler, Cambridge, GB;
Assignee:
Johnson Matthey PLLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
An exhaust system for a lean burn internal combustion engine comprises a particulate filter (CSF), a first NOabsorbent (NO(1)) disposed upstream of the filter and a second NOabsorbent (NO(2)) disposed downstream of the filter.