ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,838, issued on March 25, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).
"Flow regulating valve" was invented by Jinjiang Xiao (Dhahran, Saudi Arabia), Songlin Zhong (Dhahran, Saudi Arabia) and Chidirim Enoch Ejim (Dhahran, Saudi Arabia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system includes an electric submersible pump and a flow regulating valve. The electrical submersible pump includes a pump that, when activated, receives a fluid disposed within a production tubing of a well through a pump intake and vents the fluid through a pump discharge to a surface location. The flow regulating valve includes a flow tube that bl...