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:
Jul. 18, 2006
Filed:
Jan. 10, 2003
Kenneth E. Voss, Somerville, NJ (US);
Joseph C. Dettling, Howell, NJ (US);
Stanley Roth, Yardley, NJ (US);
Ramesh Kakwani, Whitehouse Station, NJ (US);
Yiu Kwan Lui, Parlin, NJ (US);
Alexander Gorel, Hillsborough, NJ (US);
Gary W. Rice, Scotch Plains, NJ (US);
Kenneth E. Voss, Somerville, NJ (US);
Joseph C. Dettling, Howell, NJ (US);
Stanley Roth, Yardley, NJ (US);
Ramesh Kakwani, Whitehouse Station, NJ (US);
Yiu Kwan Lui, Parlin, NJ (US);
Alexander Gorel, Hillsborough, NJ (US);
Gary W. Rice, Scotch Plains, NJ (US);
Engelhard Corporation, Iselin, NJ (US);
Abstract
The present invention relates to a method and article for treating a diesel engine exhaust stream. The stream is contacted with an upstream catalytic composition having a cerium component and/or a zeolite component to reduce the quantity and amount of the particulate matter in the exhaust stream. The stream passes from the upstream catalytic composition to a particulate filter located downstream from the upstream catalytic composition.