ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,556, issued on Dec. 16, was assigned to STERLING SPECIALTY CHEMICALS HOLDING UK Ltd. (Great Britain).

"Emulsions including polymers, treatment fluids including emulsions, and methods for treating subterranean formations" was invented by Roopa Tellakula (Suwanee, Ga.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Emulsions, treatment fluids and methods for treating subterranean formations are provided, wherein the emulsions comprise water, a water-immiscible liquid, one or more polymers, and an inverting surfactant composition comprising one or more surfactants selected from the group consisting of ethoxylated amine compounds, ethoxylated fatty acid ...