ALEXANDRIA, Va., July 30 -- United States Patent no. 12,371,607, issued on July 29, was assigned to ICL EUROPE COOPERATIEF U.A. (Amsterdam).

"Polyhalite composition and method for enhanced recovery of oil" was invented by Khalil Abu-Rabeah (Beer Sheva, Israel), Meng Zhang (Chappaqua, N.Y.) and Robert Jacob Herman Stenekes (Leek, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid solution for the recovery of oil from carbonate reservoirs, the solution including a solid chemical composition including Polyhalite in a weight range of 70 to 94.9%, NaCl in a weight range of 5 to 29.9%, and SiO2 in a weight range of 0.1 to 5%, the solid chemical composition being dissolved in water, which may inclu...