ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,716,448, issued on Aug. 25, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).

"Hinge mechanism and electronic device" was invented by Tuo Shi (Shanghai), Hewen Shen (Dongguan, China) and Yong Liu (Dongguan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The hinge mechanism includes a main shaft and a synchronization assembly, the synchronization assembly includes a first gear assembly and a second gear assembly, the first gear assembly includes a first gear connecting rod and a third gear connecting rod that are rotatably coupled, and the second gear assembly includes a second gear connecting rod and a fourth gear connecting rod tha...