ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,263, issued on June 30, was assigned to HEPHZIBAH Co. LTD. (Incheon, South Korea).

"Portable air conditioner" was invented by Cha Hyun Sung (Incheon, South Korea), Hyeon Ho Jeong (Incheon, South Korea), In Jae Lee (Incheon, South Korea) and Jae Hoon Kim (Incheon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A portable air conditioner includes a housing having an internal space, a heat exchanger provided in the internal space and heat-exchanged the external air introduced from the outside, a blower fan configured to generate a negative pressure in the internal space so that that the external air is introduced and configured to discharge...