ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,611, issued on March 11, was assigned to ILJIN Co. Ltd. (Gyeongju-si, South Korea).
"Ball joint and manufacturing method therefor" was invented by Yoon Geon Lee (Gyeongju-si, South Korea) and Jae Hyung Lee (Busan, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A ball joint is disclosed. The ball joint comprises: a ball stud including a ball and a stud; a bearing coupled to the ball stud so as to surround the outer peripheral surface of the ball; a ball casing for accommodating the ball and the bearing therein; and an insert filled inside the ball casing, and coupled to the ball casing and the bearing, and further includes rotation-preve...