ALEXANDRIA, Va., July 16 -- United States Patent no. 12,357,980, issued on July 15, was assigned to Johnson Matthey PLC (London).
"Apparatus and method for coating substrates with washcoats" was invented by Kumarasen Muruyandy (Negeri Sembilan, Malaysia).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus and a method for coating substrates with washcoats in which a substrate (10) is engaged with a headset (6) of a substrate coating apparatus (1) below a washcoat showerhead (5) are disclosed. The washcoat is discharged from the washcoat showerhead (5) onto an upper surface (12) of the substrate under control of a valve assembly (4) before being drawn through the substrate by use of a vacuum generator ...