ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,481, issued on Nov. 4, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).
"Bottom hole apparatus RPM regulator" was invented by Syed Muhammad Ali (Abqaiq, Saudi Arabia), Yassar Kamal Zia (Abqaiq, Saudi Arabia) and Dautmammet Rejepov (Dhahran, Saudi Arabia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system for drilling a wellbore includes a drill string, bottom hole apparatus, and a rotation regulator. The rotation regulator includes a compound planetary gear set with a first and second planetary unit. The first planetary unit is disposed in a proximal region of the rotation regulator from the drill string. The second planetary un...