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:
Sep. 25, 2001
Filed:
Oct. 14, 1997
Applicant:
Inventors:
Martyn Vincent Twigg, Caxton, GB;
Anthony John Joseph Wilkins, Walden, GB;
Nigel Simon Will, Cambridge, GB;
Assignee:
Johnson Matthey Public Limited Company, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 4/700 ; B01D 5/000 ; B01J 8/02 ; F01N 3/00 ;
U.S. Cl.
CPC ...
B01D 4/700 ; B01D 5/000 ; B01J 8/02 ; F01N 3/00 ;
Abstract
An emission control system especially for light duty diesel engines has a first catalyst,,, positioned upstream of a second catalyst,,. The first catalyst converts NO to NO,and the second catalyst oxidises HC, CO and VOF. The tendency of the second catalyst to collect soot particles is reduced by combustion of the soot particles by NO,from the first catalyst.
Twigg, Martyn. (2001). Emission control (U.S. Patent No. 6294141). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6294141
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile