US Patent 8039418 Exhaust gas-purifying catalyst
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Patent abstract
A high exhaust gas-purifying performance is achieved. An exhaust gas-purifying catalyst includes a substrate, a lower layer covering the substrate and including an oxygen storage material and palladium, and an upper layer covering the lower layer and including rhodium and a carrier supporting it. The lower layer is rhodium-free. The upper layer has an oxygen storage capacity lower than that of the lower layer.
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US Patent 08039418 Exhaust gas-purifying catalyst US Patent 8039418 Exhaust gas-purifying catalyst
Infobox
Patent Number
0803941800
Patent Number
803941800
Edits on 2 Apr, 2023
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
080394180
Date of Patent
October 18, 2011
0Patent Application Number
126359430
Date Filed
December 11, 2009
0Patent Primary Examiner
Edits on 24 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
080394180
Date of Patent
October 18, 2011
0Patent Application Number
126359430
Date Filed
December 11, 2009
0Patent Primary Examiner
Edits on 14 Dec, 2021
Golden AI
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US Patent 08039418 Exhaust gas-purifying catalyst
Infobox
Is a
Patent jurisdiction
Patent number
08039418
Date of patent
October 18, 2011
Patent application number
12635943
Date Filed
December 11, 2009
Patent primary examiner
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