ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,490,833, issued on Dec. 9, was assigned to ATEC INTERNATIONAL TEAM Co. LTD. (Taoyuan, Taiwan).
"Chair seat and clamping device" was invented by Te-Chun Chen (Taoyuan, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A chair seat is provided for combining with two armrests. Each armrest includes a crossbar. The chair seat includes a base and two clamping devices. The base includes at least one armrest slot and two mounting holes. The armrest slot is adapted for inserting the crossbar, and the mounting hole is in communication with the armrest slot. The two clamping devices are separately installed within the two mounting holes. Each clamping device i...