US Patent Issued to Evonik Operations on Oct. 28 for "Multifunctional wax dispersant for subterranean chemical applications" (American, German Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,641, issued on Oct. 28, was assigned to Evonik Operations GmbH (Essen, Germany).

"Multifunctional wax dispersant for subterranean chemical applications" was invented by Liang Xu (The Woodlands, Texas), Sofia Sirak (Plymouth Meeting, Pa.), Iryna Zhuk (Warrington, Pa.) and Claudia Meister (Darmstadt, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A composition for use as a multifunctional wax dispersant can treat subterranean formations for the recovery of oil and gas from oil and gas wells. A process can be used for the preparation thereof. A method for treating a crude oil with a wax dispersant composition according to the present invention ...