ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,741,275, issued on Sept. 22, was assigned to TOSOH Corp. (Yamaguchi, Japan).

"Cha-type zeolite and method for producing the same" was invented by Naoto Nakazawa (Yamaguchi, Japan) and Toyohiro Usui (Yamaguchi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is at least one of a CHA-type zeolite having a greater amount of a paired aluminum structure than do CHA-type zeolites of the related art; a catalyst containing the CHA-type zeolite; and a method for producing these. A method for producing a CHA-type zeolite includes crystallizing a composition that contains an alumina source, a silica-alumina source, an alkali source, an organic struc...