ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,827, issued on Oct. 21, was assigned to Fulian Precision Electronics (Tianjin) Co. LTD. (Tianjin, China).

"Retention assembly and chassis having the same" was invented by Wen-Hu Lu (Tianjin, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A retention assembly for positioning a mounting component slidably arranged on a frame, the retention assembly includes a detent cylinder defining a receiving hole therethrough, a cap covering the receiving hole, and a retention ball and an elastic member located in the receiving hole, the elastic member is arranged between the retention ball and the cap for pressing the retention ball to protrude from the rec...