ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,384,687, issued on Aug. 12, was assigned to TOSOH Corp. (Yamaguchi, Japan).
"Method for producing AEI zeolite" was invented by Tomoya Ishikawa (Yamaguchi, Japan) and Yoshitaka Yamasaki (Yamaguchi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is at least one of a production method that can obtain AEI zeolite that has a silica-to-alumina molar ratio suitable as a nitrogen oxide-reducing catalyst or a support thereof and that involves a shorter crystallization time and higher yield compared to a typical AEI zeolite production method that does not use crystalline aluminosilicate as a starting material, or an AEI zeolite production method th...