ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,899, issued on March 3, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).
"Bearings for electric submersible pumps" was invented by Pradeep Mahadevan (Singapore), TengFei Wang (Singapore), Raju Ekambaram (Singapore), Kean Wee Cheah (Singapore), Sethuraj Arumugam (Singapore) and Kim Hoo Goh (Singapore).
According to the abstract* released by the U.S. Patent & Trademark Office: "Anti-rotation bearing assemblies for electric submersible pumps are provided. An electric submersible pump includes a plurality of centrifugal pump stages, each stage including a rotating impeller and a stationary diffuser mounted on a shaft coupled to a motor. In use, the motor rotates the...