ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,528, issued on Feb. 3, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).

"Devices, systems, and methods for a cleaning element" was invented by Philip Trunk (Houston), Ming Zhang (Spring, Texas) and Mahesha Kumar (Cypress, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A downhole tool includes a body having a longitudinal axis and a fluid passage extending through the body. The downhole tool includes at least one blade having one or more engagement faces thereon. At least one junk slot extends adjacent to the at least one blade. The downhole tool includes a cleaning element at the longitudinal axis of the body. The cleaning ele...