ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,619, issued on Oct. 21, was assigned to GSF SOLUTION Co. LTD. (Chungcheongbuk-Do, South Korea).

"Rebot control method using non-contact displacement sensor and apparatus thereof" was invented by Seung Won Seo (Gyeonggi-do, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a robot control method using a non-contact displacement sensor, and an apparatus thereof. The robot control method using a non-contact displacement sensor may comprise steps of: checking a normal position according to a robot's motion range through the non-contact displacement sensor installed horizontally to an end effector of the robot; me...