ALEXANDRIA, Va., July 7 -- United States Patent no. 12,673,588, issued on July 7, was assigned to YANFENG INTERNATIONAL SEATING SYSTEMS Co. LTD. (Shanghai).

"Vertical latch locking mechanism for rotating seat" was invented by Qingwei Feng (Shanghai), Jiabin Ding (Shanghai) and Feixiang Zhu (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed in the utility model is a vertical latch locking mechanism for a rotating seat, including a vertical latch locking mechanism mounted on a rotating disc in a seat rotation mechanism, at least one lockhole provided on a disc surface of a fixed disc in the seat rotation mechanism, and at least one first lock pin hole provided on the rotating disc. The lockhole...