ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,886, issued on May 27, was assigned to Welltec A/S (Allerod, Denmark).
"Downhole tool string" was invented by Tomas Sune Andersen (Allerod, Denmark).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a downhole tool string for displacing at least a tool section in a well in a radial direction in a wall of a well tubular metal structure extending along an axial direction in relation to the radial direction, comprising a tool body having an outer face and a tool centre axis along the axial direction, a centre plane extending along and enclosing the centre axis, dividing the tool body into a first body half and a second body...