ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,881, issued on April 29, was assigned to I-CUBE RESEARCH (Toulouse, France).
"Pulsed high-power drill bit and drilling tool" was invented by Gilles Avrillaud (Pinsaguel, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "Drill bit (230) for a drilling tool (1) comprising a drill bit member (231) which delimits a through-channel (231C) for the passage of the fluid flow and comprising an external surface (232), from which there extend a plurality of drilling members (233) which are uniformly distributed over the external surface (232), each drilling member (233) comprising a fin (233A) which extends from the external surface (232) and a plurality of...