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:
Mar. 19, 2019
Filed:
Oct. 12, 2016
Johnson Matthey Public Limited Company, London, GB;
Gavin Michael Brown, Royston, GB;
Andrew Francis Chiffey, Royston, GB;
Paul Richard Phillips, Royston, GB;
Jonathan Radcliffe, Royston, GB;
Johnson Matthey Public Limited Company, London, GB;
Abstract
An exhaust system for an internal combustion engine, the exhaust system comprising, a lean NOtrap, a NOstorage and reduction zone on a wall flow monolithic substrate having a pre-coated porosity of 50% or greater, the NOstorage and reduction zone comprising a platinum group metal loaded on one or more first support, the or each first support comprising one or more alkaline earth metal compound, and a selective catalytic reduction zone on a monolithic substrate, the selective catalytic reduction zone comprising copper or iron loaded on a second support, the second support comprising a molecular sieve.