US Patent Issued to Saudi Arabian Oil on Sept. 15 for "Back pressure valve with contingency release" (Saudi Arabia Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,955, issued on Sept. 15, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"Back pressure valve with contingency release" was invented by Syed Muhammad Bin Syed Taha (Dhahran, Saudi Arabia), Amr Mohammed Zahran (Al Khobar, Saudi Arabia), Abdullah Mohammedkhair Alkassab (Dhahran, Saudi Arabia) and Wafaa Hasan Alnakhli (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A back pressure valve ("BPV") for use in a wellhead assembly has a contingency release means. The BPV is coupled to the wellhead assembly with a threaded connection, that is formed by engaging threads on the BPV with threads in a tubing hanger inside the...