ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,533, issued on July 15, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"Retrievable electric subsurface safety valve and nipple assembly" was invented by Abdulmalek Sulaiman AlMatrodi (Dammam, Saudi Arabia) and Ahmed Showqi Al Alshaikh (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A well system includes an electrically operated wireline-retrievable subsurface safety valve (WLSSSV) disposed in a landing nipple assembly attached to a production tubing string. The WLSSSV includes an electrical actuator and a first electrical connector. The nipple assembly includes a second electrical connector on a first end of a...