ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,443, issued on Sept. 23, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"Viscosity reducer compositions, methods for producing, and methods of using" was invented by Shaohua Chen (Beijing), Ming Han (Dhahran, Saudi Arabia) and Abdulkareem AlSofi (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A viscosity reducer composition may include one or more polycyclic compounds, one or more polymers covalently attached to one or more polyaromatic compounds, one or more rheology modifiers, one or more surfactants, and an aqueous solution."

The patent was filed on May 30, 2023, under Application No. 18/325,593.

*For furt...