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:
Aug. 18, 1998
Filed:
Jul. 03, 1996
Stephen E Lott, Edgewood, NM (US);
Timothy J Gardner, Albuquerque, NM (US);
Linda I McLaughlin, Albuquerque, NM (US);
John B Oelfke, Albuquerque, NM (US);
Charlene A Matlock, Albuquerque, NM (US);
Low Emmissions Technologies Research and Development Partnership, Dearborn, MI (US);
Abstract
A material effective for adsorbing NO.sub.x from an exhaust stream of a combustion process, such as from an internal combustion engine operating under lean burn conditions, is disclosed. The material comprises an alkali metal-doped and copper-doped hydrous metal oxide material that has been calcined. The alkali metal is selected from potassium and sodium. The material is coated onto a substrate, such as ceramic beads or pellets, or a honeycomb cordierite monolith, and placed in contact with the exhaust stream.