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:
Nov. 26, 2013
Filed:
Mar. 11, 2011
Thorsten Rolf Boger, Painted Post, NY (US);
Suhao He, Painted Post, NY (US);
Min Shen, Horseheads, NY (US);
Thorsten Rolf Boger, Painted Post, NY (US);
Suhao He, Painted Post, NY (US);
Min Shen, Horseheads, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
Particulate filters for reducing NOand particulate matter in diesel exhaust and methods for forming the same are disclosed. In one embodiment, a particulate filter may include a honeycomb body with a plurality of channel walls extending from an inlet end to an outlet end. At least a first set of the channels are plugged proximate at least one of the inlet end or the outlet end. A filter zone may extend from the inlet end in an axial direction of the particulate filter. A DeNOzone may be located downstream of the filter zone. The channel walls of the particulate filter may include a DeNOfunctional catalyst in the DeNOzone and a ratio of the permeability κof the channel walls in the filter zone to the permeability κof the channel walls in the DeNOzone (κ:κ) is at least 2.