ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,964, issued on Jan. 27, was assigned to INNOVEX DOWNHOLE SOLUTIONS INC. (Humble, Texas).

"Downhole swivel" was invented by Graeme Thomas Marr (Humble, Texas) and Callum Morrison (Humble, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A downhole swivel includes a housing and an inner tubular positioned at least partially within the housing. The downhole swivel also includes an engaging member coupled to or integral with an end of the inner tubular, such that the engaging member and the inner tubular are rotationally locked together. The downhole swivel also includes a rotation coupler selectively positionable relative to the engaging member. Th...