Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2011-01-25
2011-01-25
Group, Karl E (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S325000, C502S332000, C502S333000, C502S334000, C502S527120, C423S213200
Reexamination Certificate
active
07875573
ABSTRACT:
The present invention is directed to a diesel oxidation catalyst for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC), and carbon monoxide (CO) and the reduction of nitrogen oxides (NOx). More particularly, the present invention is directed to a novel washcoat composition comprising two distinct washcoat layers containing two distinctly different ratios of Pt:Pd.
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Beutel Tilman W.
Dettling Joseph C.
Hollobaugh Dustin O.
Mueler-Stach Torsten W.
BASF Corporation
Brown Melanie L.
Diehl Servilla LLC
Group Karl E
Servilla Scott S.
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