US Patent 11344875 NOx-trapping catalyst having non-platinum-group-metal NOx-trapping layer
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Patent Inventor Names
Jin-Woo Song0
Narayana Rao Komateedi0
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Patent Number
113448750
Date of Patent
May 31, 2022
0Patent Application Number
166421670
Date Filed
August 14, 2018
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US Patent 11344875 NOx-trapping catalyst having non-platinum-group-metal NOx-trapping layer
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Disclosed is a NOx-trapping catalyst having a non-platinum-group-metal NOx-trapping layer, which contains a transition metal, particularly manganese, able to maintain NOx-trapping performance while decreasing the amount of expensive platinum-group metal.
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Patent jurisdiction
Patent number
11344875
Date of patent
May 31, 2022
Patent application number
16642167
Date Filed
August 14, 2018
Patent citations
Patent primary examiner
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