ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,119, issued on July 8, was assigned to Opla Energy Ltd. (Calgary, Canada).

"Managed pressure drilling manifold and methods" was invented by Hossein Khorshidian (Calgary, Canada), Vitaliy Shpak (Calgary, Canada) and Elvin Mammadov (Calgary, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A managed pressure drilling (MPD) manifold has one or more valves that are operable by one or more actuators configured to synchronize the opening of one or more passageways in the valves with the closing of one or more of the other passageways in the valves, in order to minimize the likelihood of error and reduce response time. The valves are configured to tran...