MUMBAI, India, June 6 -- Intellectual Property India has published a patent application (202517020811 A) filed by Johnson Matthey Public Limited Company, London, on March 7, for 'improved catalytic wall flow filter.'
Inventor(s) include Foschi Francesco; Googan James; Macminn Anton; Marvell David; Reid Stuart David; St Hill Keimoy; Walton Mark; and Wijemanne Thilanka.
The application for the patent was published on June 6, under issue no. 23/2025.
According to the abstract released by the Intellectual Property India: "A catalytic wall flow monolith filter for use in an emission treatment system is disclosed. The filter comprises porous walls 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 provides a first plurality of inner surfaces and is open at the first face and closed at the second face; and the second plurality of channels provides a second plurality of inner surfaces and is open at the second face and closed at the first face. The filter comprises a first selective catalytic reduction (SCR) catalyst coated on the first plurality of inner surfaces of the porous walls to form a first SCR catalyst porous layer a second SCR catalyst within the porous walls and a third SCR catalyst coated on the second plurality of inner surfaces of the porous walls to form a third SCR catalyst porous layer."
The patent application was internationally filed on Nov. 08, 2023, under International application No.PCT/GB2023/052912.
Disclaimer: Curated by HT Syndication.
