ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,552, issued on Aug. 19, was assigned to Byoung Woo Kim (Seoul, South Korea).
"Vacuum dryer not requiring vacuum pump" was invented by Byoung Woo Kim (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vacuum dryer not requiring a vacuum pump according to an embodiment of the present invention comprises: a drying chamber in which a drying rack is installed, and an exhaust valve communicating with the interior is provided on the outside of the other side; a steam generator located outside the drying chamber, having a water tank, and connected to a steam inlet; and a heat pump interlocked with the inside and outside of the drying chamb...