ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,404, issued on March 31, was assigned to LG Electronics Inc. (Seoul, South Korea).

"Dryer and operating method therefor" was invented by Yang Gyu Kim (Seoul, South Korea) and Chan Ho Chun (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dryer and an operating method therefor are useful in a 5G environment provided for the Internet of Things. The dryer includes a heating device, a tumbler connected to the exit of the heating device, a fan connected to the exit of the tumbler, a heat exchanger disposed in a flow line of a working fluid connected to the exit of the fan, a compressor having an entrance connected to a flow line conne...