ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,277, issued on March 25, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"Method to tailor zeolite silica-to-alumina ratio" was invented by Robert P. Hodgkins (Dhahran, Saudi Arabia) and Omer Refa Koseoglu (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure is directed to a method of manufacture of zeolite. A sol-gel formulation includes a water-soluble fraction of ODSO as an additional component. The resulting products include zeolite with increased SAR relative to comparable sol-gel formulations without ODSO as a precursor. In addition, the SAR is increased by increasing the ODSO content dur...