ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,945, issued on March 18, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).

"System and method for pressure activation of a tool in a wellbore" was invented by Hassan W. Otaif (Dhahran, Saudi Arabia) and Alexander Boers (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and a method for pressure activation of a tool in a wellbore is disclosed. The system comprises one or more sealing seat for being set in the tool in a horizontal section of the wellbore. The system further comprises and one or more self-driven sealing ball for being activated to roll through the wellbore independently from fluid speed and...