ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,446, issued on March 11, was assigned to HELMERICH & PAYNE INC. (Tulsa, Okla.).

"Method and apparatus for moving tubular rotary slips" was invented by Zachary L. Newton (Collinsville, Okla.) and Brandon D. Valentine (Bixby, Okla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotary slips lift system for oilfield tubulars includes a movable base adapted to move between a first position and a second position where the first position is closer to a bowl in a drilling rig floor than the second position. The system further includes a lifting arm having a first end and a second end where the second end is pivotally coupled to the movable base and wher...