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:
Mar. 02, 2021
Filed:
Mar. 20, 2018
Umicore Ag & Co. KG, Hanau-Wolfgang, DE;
Naina Deibel, Pfungstadt, DE;
Stephanie Spiess, Darmstadt, DE;
Martin Roesch, Rodgau, DE;
Joerg-Michael Richter, Frankfurt, DE;
Jan Schoenhaber, Darmstadt, DE;
Susanne Kunert, Seeheim-Jugenheim, DE;
UMICORE AG & CO. KG, Hanau-Wolfgang, DE;
Abstract
The present invention relates to a particulate filter which comprises a wall flow filter of length L and three mutually different catalytically active coatings X, Y and Z, wherein the wall flow filter comprises channels E and A that extend in parallel between a first and a second end of the wall flow filter and are separated by porous walls forming surfaces Oand, respectively, O, and wherein the channels E are gas-tightly sealed at the second end and the channels A are gas-tightly sealed at the first end, characterized in that the coating X is located in the porous walls, the coating Y is located in the channels E on the surfaces Oand the coating Z is located in the channels A on the surfaces O.