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:
May. 31, 2022
Filed:
Aug. 14, 2018
Applicant:
Heesung Catalysts Corporation, Gyeonggi-do, KR;
Inventors:
Narayana Rao Komateedi, Gyeonggi-do, KR;
Jin-Woo Song, Incheon, KR;
Assignee:
HEESUNG CATALYSTS CORPORATION, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 21/04 (2006.01); B01J 23/656 (2006.01); B01J 35/00 (2006.01); B01J 37/02 (2006.01); F01N 3/08 (2006.01); F01N 3/10 (2006.01);
U.S. Cl.
CPC ...
B01J 37/0244 (2013.01); B01J 21/04 (2013.01); B01J 23/6562 (2013.01); B01J 35/0006 (2013.01); F01N 3/0842 (2013.01); F01N 3/101 (2013.01); B01J 2523/00 (2013.01); F01N 2510/0684 (2013.01);
Abstract
Disclosed is a NOx-trapping catalyst having a non-platinum-group-metal NOx-trapping layer, which contains a transition metal, particularly manganese, able to maintain NOx-trapping performance while decreasing the amount of expensive platinum-group metal.