ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,501,522, issued on Dec. 16.
"Food warming tray" was invented by Qilin Song (Huizhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a food warming tray, which includes a warmer pad and a shielding bar. The warmer pad is configured to hold external tableware. Specifically, a groove is provided at the bottom of the warmer pad, and a heating wire is provided in the groove. The shielding bar is arranged at the outlet of the groove to seal the heating wire in the groove. The heating wire is bonded to the shielding bar and side walls of the groove by means of an adhesive. The food warming tray utilizes a combination of the groove and the shi...