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:
Aug. 10, 2010
Filed:
Sep. 15, 2009
Applicants:
Cheng G. LI, Troy, MI (US);
Fuhe Mao, Rochester, MI (US);
Inventors:
Cheng G. Li, Troy, MI (US);
Fuhe Mao, Rochester, MI (US);
Assignee:
Dow Global Technologies Inc., Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 23/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
A catalyzed soot filter is comprised of a monolithic ceramic honeycomb body that has a catalyzed inlet zone that has a catalyst within the walls of the ceramic honeycomb inlet end to at most about 45% of the length of the catalyzed soot filter. The catalyzed inlet zone has a porosity that is at least ⅓ the porosity of a wall of the ceramic honeycomb that does not have a catalyst in the wall.