ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,773,779, issued on Oct. 27, was assigned to ABB Schweiz AG (Baden, Switzerland).

"Reducing kinematic error" was invented by Arne Wahrburg (Weiterstadt, Germany), Richard Roberts (Gilching, Germany), Stig Moberg (Vasteras, Sweden) and Nima Enayati (Mannheim, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes determining a movement of a robot arm in which a joint while being rotated from a start angle to an end angle, is subject to a constant gravity-induced torque; controlling execution of the movement, and, in the movement, controlling the joint to rotate from the start angle to the end angle at a constant speed; detecting speed fl...