ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,477, issued on July 21, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).
"Method of robust surfactant screening for foam applications" was invented by Muhammad M. Almajid (Dhahran, Saudi Arabia), Zuhair Alyousif (Dhahran, Saudi Arabia), Subhash C. Ayirala (Dhahran, Saudi Arabia) and Othman Alswaie (Dhahran, Saudi Arabia).
According to the abstract* released by the U.S. Patent & Trademark Office: "Screening multiple surfactants is performed by a screening method including passing foam compositions comprising a surfactant through a porous media while measuring pressure drop across the porous media until a first steady state pressure drop is achieved. Magnitude and...