US Patent Issued to Saudi Arabian Oil, Case Western Reserve University on April 22 for "Wellbore treatment fluids comprising an amphiphilic hyperbranched copolymer" (Saudi Arabia, American Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,260, issued on April 22, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia) and Case Western Reserve University (Cleveland).

"Wellbore treatment fluids comprising an amphiphilic hyperbranched copolymer" was invented by Feng Liang (Cypress, Texas), Hui-Hai Liu (Katy, Texas), Jin Ge (Cleveland), Jose I. Rueda (Dhahran, Saudi Arabia) and Mohammed A. Bataweel (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "Wellbore treatment fluids are provided that include an aqueous component and an amphiphilic hyperbranched copolymer comprising the polymerized reaction product of at least a first monomer and a second monomer, where the...