ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,816, issued on March 25, was assigned to NABORS DRILLING TECHNOLOGIES USA INC. (Houston).
"Side saddle traversable drilling rig" was invented by Padira Reddy (Richmond, Texas), Denver Lee (Houston) and Premkumar Mongattil (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A land-based drilling rig includes a drill rig floor and a subfloor, the subfloor supporting the drill rig floor. The land-based drilling rig also includes a plurality of substructure boxes, the substructure boxes supporting the subfloor, each substructure box including a lower substructure box and two upper substructure boxes, wherein there is a gap between the two upper sub...