ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,444, issued on Sept. 23, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).
"Polymers and nanoparticles for flooding" was invented by S. Sherry Zhu (Waban, Mass.), Ayrat Gizzatov (Cambridge, Mass.) and Marta Antoniv (Cambridge, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and compounds for enhanced oil recovery (EOR) including flooding of a mixture of water and one or more of the compounds in a geological formation. The compounds have a fluoroalkyl group."
The patent was filed on April 15, 2024, under Application No. 18/635,495.
*For further information, including images, charts and tables, please visit: http://patft....