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:
Jan. 13, 2015
Filed:
Jan. 29, 2013
Umicore Ag & Co. KG, Hanau-Wolfgang, DE;
Stephanie Frantz, Loerrach, DE;
Ulrich Goebel, Hattersheim, DE;
Franz Dornhaus, Rodgau, DE;
Michael Schiffer, Hanau, DE;
Umicore AG & Co. KG, Hanau-Wolfgang, DE;
Abstract
A catalytically active particulate filter is proposed which is suitable for use in an exhaust gas cleaning system for diesel engines. The particulate filter removes diesel soot particles from the exhaust gas and is also effective to oxidize carbon monoxide and hydrocarbons and to convert nitrogen monoxide at least proportionally into nitrogen dioxide. The particulate filter comprises a filter body () and two catalytically active coatings () and () which contain platinum and palladium, or platinum or palladium respectively, wherein the platinum content of the second catalytically active coating () is higher than the platinum content of the first catalytically active coating ().