US Patent 7407911 Method of preparing a double layered, palladium-only three-way catalyst

Patent 7407911 was granted and assigned to Hyundai Motor Company on August, 2008 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Hyundai Motor Company

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

74079110

Patent Inventor Names

Gwon Koo Yeo0

Date of Patent

August 5, 2008

Patent Application Number

108621470

Date Filed

June 4, 2004

Patent Primary Examiner

Roy King

Patent abstract

The present invention relates to a method of preparing a double layered, palladium-only three-way catalyst using three different composite oxides. More particularly, the present invention relates to a method of preparing a double layered, palladium-only three-way catalyst comprising a first coating layer (bottom layer) and a second coating layer (top layer) containing palladium by incorporating composite oxide, praseodymium oxide, and perovskite.

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