ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,995, issued on Feb. 17, was assigned to Atlas Copco Industrial Technique AB (Sweden).

"Hydraulic torque wrench" was invented by Ian O'Brien (Cramlington, Great Britain), Joseph Gill (Cramlington, Great Britain), Tony Dodds (Cramlington, Great Britain) and Teresa O'Brien (Cramlington, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic torque wrench (10), comprising: an input, for pressurised hydraulic fluid; a drive connector (14); a drive connector (13), driven by hydraulic fluid introduced at the input and arranged to drive the drive connector (14) to rotate; a drive member (1) for connecting to an item to be rotated by the hy...