Intellectual Property India Publishes Patent Application for 'Ammonia Slip Catalyst Filter' Filed by Johnson Matthey Public Limited Company

MUMBAI, India, May 30 -- Intellectual Property India has published a patent application (202517029054 A) filed by Johnson Matthey Public Limited Company, London, on March 27, for 'ammonia slip catalyst filter.'

Inventor(s) include Barron, Ross; Chandler, Guy Richard; Foschi, Francesco; Reid, Stuart David; and Walton, Mark.

The application for the patent was published on May 30, under issue no. 22/2025.

According to the abstract released by the Intellectual Property India: "A catalytic wall-flow filter for the treatment of an exhaust gas is disclosed. The catalytic wall-flow filter comprises at least a first, a second and a third catalytic layer: the first catalytic layer extends from the inlet-end of the substrate and comprises a first S...