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. 31, 2012
Filed:
May. 29, 2009
Paul Richard Phillips, Royston, GB;
Gudmund Smedler, Bleket, SE;
Martyn Vincent Twigg, Cambridge, GB;
Paul Richard Phillips, Royston, GB;
Gudmund Smedler, Bleket, SE;
Martyn Vincent Twigg, Cambridge, GB;
Johnson Matthey Public Limited Company, London, GB;
Abstract
A system for treating a gas stream containing nitrogen oxides (NO) and particulates flowing in the system comprises means for injecting a source of ammonia (NH) or urea (CO(NH)) into a flowing exhaust gas upstream of a precious metal-free particulate trap, a selective catalytic reduction catalyst disposed downstream of the particulate trap and a source of ammonia or urea.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile