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:
Oct. 16, 2018
Filed:
Mar. 14, 2017
Applicant:
Cummins Emission Solutions Inc., Columbus, IN (US);
Inventors:
Shirish S. Punde, Columbus, IN (US);
Arvind V. Harinath, Columbus, IN (US);
Changsheng C. Su, Columbus, IN (US);
Aravindh K. Kanakamedala, Columbus, IL (US);
Assignee:
Cummins Emission Solutions Inc., Columbus, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 35/00 (2006.01); B01D 53/94 (2006.01); F01N 3/08 (2006.01); F01N 3/10 (2006.01);
U.S. Cl.
CPC ...
B01J 35/0006 (2013.01); B01D 53/9477 (2013.01); F01N 3/0814 (2013.01); F01N 3/0835 (2013.01); F01N 3/103 (2013.01); B01D 2255/904 (2013.01); B01D 2255/912 (2013.01);
Abstract
An oxidation catalyst may include hydrocarbon storage material. One implementation relates to a diesel oxidation catalyst that includes a catalyst having a front zone and a rear zone and a gradient of hydrocarbon storage material on the catalyst extending from the front zone to the rear zone. The gradient of hydrocarbon storage material, may comprise a linear gradient, a step gradient, a parabolic gradient, a logarithmic gradient, or other forms thereof.