ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,160, issued on Feb. 10, was assigned to USUN TECHNOLOGY Co. LTD. (Taoyuan, Taiwan).
"Door panel manufacturing method" was invented by Chiu-Fong Huang (Taoyuan, Taiwan) and Hsiang-Yueh Yu (Taoyuan, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A door panel manufacturing method is provided. There is a filling space inside the frame of the door panel for the filling of a filling material to be, and the two panels of the door panel are respectively combined with the hollows on both sides of the frame to seal the filling space. Each panel has one side processed to provide a recessed portion so that a protruding portion corresponding to the recess...