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:
Jun. 25, 2024
Filed:
Dec. 21, 2022
Umicore Ag & Co. KG, Hanau-Wolfgang, DE;
Martin Foerster, Büdingen, DE;
Juergen Koch, Hanau, DE;
Manuel Gensch, Aschaffenburg, DE;
Naina Deibel, Pfungstadt, DE;
Antje Oltersdorf, Freiburg, DE;
Jan Schoenhaber, Darmstadt, DE;
UMICORE AG & CO. KG, Hanau-Wolfgang, DE;
Abstract
The invention relates to a wall-flow filter as a particle filter with catalytically active coatings in the channels which are closed in a gas-tight manner at the opposing closed ends of the channels A at the first end, wherein the inlet region of the filter is additionally supplied with a dry powder-gas aerosol which contains metal compounds with a high melting point (such as the metal oxides Al2O3, SiO2, FeO2, TiO2, ZnO2, etc. for example) and which is to simultaneously improve the catalytic activity and the degree of filtration efficiency with respect to the exhaust gas back-pressure.