ALEXANDRIA, Va., July 3 -- United States Patent no. 12,349,239, issued on July 1.

"Heater" was invented by Xusheng Li (Shandong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a heater. The heater includes a heating device and a control assembly. The control assembly is rotatably arranged on the heating device. Since the control assembly can rotate independently, even if an angle of the control assembly is changed after a rotation of the heating device, the user can adjust the angle of the control assembly independently. In this way, it can be ensured that the control assembly faces the user, so as to facilitate the user to regulate and operate the control assembly."

Th...