ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,557,910, issued on Feb. 24, was assigned to DONGGUAN KENTEC OFFICE SEATING Co. LTD. (Dongguan, China).

"Flexible support device for chair back tilting" was invented by Chih-Cheng Su (Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A flexible support device for chair back tilting contains: a supporting frame, a seat mounting, and a base. The supporting frame includes a back portion, two peripheral extensions, two rotatable edges, two first coupling orifices, and two second coupling orifices. The seat mounting includes a first fixing portion, a second fixing portion, two connecting fences, two rotatable locating portions, two defining orific...