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:
May. 20, 2025
Filed:
Feb. 05, 2024
Johnson Matthey Public Limited Company, London, GB;
Johnson Matthey Public Limited Company, London, GB;
Abstract
A catalytic wall-flow filter for exhaust gas from a gasoline engine is disclosed. The catalytic wall-flow filter comprises a wall-flow filter substrate having porous walls and a first face and a second face defining a longitudinal direction therebetween and first and second pluralities of channels extending in the longitudinal direction. The first plurality of channels is open at the first face and closed at the second face, and the second plurality of channels is open at the second face and closed at the first face. The filter comprises a first TWC coating comprising a first PGM composition, a first oxygen storage capacity (OSC) material, and a first inorganic support; and a second TWC coating comprising a second PGM composition, a second OSC material, and a second inorganic support.