ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,320, issued on July 21, was assigned to Shanghai KOHLER Electronics Ltd. (Shanghai).

"Driving part of warm air heater and warm air heater" was invented by Houyong Xu (Shanghai) and Yan She (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a driving part of a warm air heater and the warm air heater, wherein the driving part comprises a driving circuit board, and a silicon-controlled element is arranged on the driving circuit board; the driving circuit board is arranged in an air duct of the warm air heater, and the driving circuit board is positioned at the upstream of the heating part or is flush with the heati...