ALEXANDRIA, Va., June 5 -- United States Patent no. 12,274,370, issued on April 15.
"Assembly structure of chair" was invented by Teng-Jen Yang (Taichung, Taiwan) and Yuan-Ta Yang (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An assembly structure of a chair includes: a chair frame having a front bar, a rear bar, a first side bar and a second side bar; and a chair seat detachably assembled with the chair frame and having a seat portion, a front engaging portion disposed at a front end of the seat portion to engage with the front bar, a rear engaging portion disposed at a rear end of the seat portion to engage with the rear bar, a first abutting portion disposed at one side of the seat port...