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. 03, 2015
Filed:
Nov. 21, 2011
John G. Nunan, Tulsa, OK (US);
Raoul Klingmann, Alzenau, DE;
Ryan J. Andersen, Owasso, OK (US);
Davion Onuga Clark, Bad Soden, DE;
David Henry Moser, Sterling Heights, MI (US);
John G. Nunan, Tulsa, OK (US);
Raoul Klingmann, Alzenau, DE;
Ryan J. Andersen, Owasso, OK (US);
Davion Onuga Clark, Bad Soden, DE;
David Henry Moser, Sterling Heights, MI (US);
Umicore AG & Co. KG, Hanau-Wolfgang, DE;
Abstract
Disclosed herein is a layered three-way catalytic system being separated in a front and a rear portion having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides. Provided is a catalyst composite comprising a single front catalytic layer and two rear catalytic layers in conjunction with a substrate, where the single font layer and the rear bottom layer comprise a Pd component, the rear top layer comprises a Rh component, and the rear bottom layer is substantially free of an oxygen storage component (OSC).