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. 07, 2012
Filed:
Oct. 06, 2011
Applicants:
Christie Susan Ragle, Havana, IL (US);
Ronald G. Silver, Peoria, IL (US);
Svetlana Mikhailovna Zemskova, Edelstein, IL (US);
Colleen J. Eckstein, Metamora, IL (US);
Inventors:
Christie Susan Ragle, Havana, IL (US);
Ronald G. Silver, Peoria, IL (US);
Svetlana Mikhailovna Zemskova, Edelstein, IL (US);
Colleen J. Eckstein, Metamora, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2006.01); B01D 53/56 (2006.01); B01D 53/62 (2006.01); B01D 53/72 (2006.01); B01D 53/94 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of providing an exhaust treatment device is disclosed. The method includes applying a catalyst including gold and a platinum group metal to a particulate filter. The concentration of the gold and the platinum group metal is sufficient to enable oxidation of carbon monoxide and nitric oxide.