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. 12, 2014
Filed:
Nov. 22, 2010
Gerd Grubert, Hannover, DE;
Gerd Grubert, Hannover, DE;
BASF Catalyst Germany GmbH, Nienburg/Weser, DE;
Abstract
The present invention relates to a catalyzed soot filter which comprises a wall flow substrate with an inlet end, an outlet end, a substrate axial length extending between the inlet end and the outlet end, and a plurality of passages defined by internal walls of the wall flow substrate wherein the plurality of passages comprise inlet passages having an open inlet end and a closed outlet end, and outlet passages having a closed inlet end and an open outlet end, and wherein the internal walls of the inlet passages comprise a zoned first inlet coating, the internal walls of the outlet passages comprise a zoned first outlet coating, and wherein the first inlet coating and the first outlet coating are present on the wall flow substrate at a coating loading ratio of less than 0.5.