ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,945, issued on Dec. 30, was assigned to OnTarget Drilling LLC (Houston).
"Rotary steerable system" was invented by Sylvain Bedouet (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotary steerable system including a steering section having at least one piston, at least one distribution flow passage extending from a valve to one of the pistons, and two main flow passages bypassing the pistons. At least a portion of each main flow passage is closer to a central point of the steering section than an outer boundary of the distribution flow passage. At least a portion of each main flow passage may also be closer to the central point of the steer...