US Patent 11788450 TWC catalysts for gasoline engine exhaust gas treatments
Patent 11788450 was granted and assigned to Johnson Matthey on October, 2023 by the United States Patent and Trademark Office.
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US Patent 11788450 TWC catalysts for gasoline engine exhaust gas treatments
Article
Patent abstract
A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising a first platinum group metal (PGM) component supported on a first PGM support material, wherein the first PGM component comprises rhodium (Rh) and platinum (Pt); and wherein Pt and Rh has a weight ratio of at least 1:10.
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Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Maria C. Vlachou
Paul Millington
Date of Patent
October 17, 2023
Patent Application Number
17451352
Date Filed
October 19, 2021
Patent Citations
Patent Primary Examiner
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