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:
May. 17, 2022
Filed:
Sep. 06, 2018
Umicore Ag & Co. KG, Hanau-Wolfgang, DE;
Ryan J. Andersen, Owasso, OK (US);
John G. Nunan, Tulsa, OK (US);
Curt M. Ellis, Bixby, OK (US);
Geon Seog Son, Koenigstein, DE;
UMICORE AG & CO. KG, Hanau-Wolfgang, DE;
Abstract
The present invention relates to a catalyst comprising a carrier substrate of the length L extending between substrate ends a and b and three washcoat zones A, B and C wherein washcoat zone A comprises one or more first platinum group metals and extends starting from substrate end a over a part of the length L, washcoat zone C comprises one or more first platinum group metals and extends starting from substrate end b over a part of the length L, and washcoat zone B comprises the same components as washcoat zone A and in addition, one or more second platinum group metals and extends between washcoat zones A and C, wherein L=L+L+L, wherein Lis the length of washcoat zone A, Lis the length of substrate length B and Lis the length of substrate length C.