MUMBAI, India, Aug. 8 -- Intellectual Property India has published a patent application (202517050551 A) filed by Johnson Matthey Public Limited Company, London, on May 26, for 'catalytic wall flow filter.'

Inventor(s) include Benet Rajkumar, Brenda; Lakadamyali, Fezile; and Turner, John.

The application for the patent was published on Aug. 8, under issue no. 32/2025.

According to the abstract released by the Intellectual Property India: "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 exten...