ALEXANDRIA, Va., June 25 -- United States Patent no. 12,340,364, issued on June 24, was assigned to KAKAO CORP. (Jeju-Si, South Korea).

"Method and apparatus for communication system using user interfaces for instant messaging service associated with item transactions" was invented by Sang Kyeong Lee (Seongnam-Si, South Korea), Seo Ji Lee (Seongnam-Si, South Korea), Lim Ah Lee (Seongnam-Si, South Korea), Yoon Sun Lee (Seongnam-Si, South Korea), Hyun Ji Oh (Seongnam-Si, South Korea) and Je Woo Song (Seongnam-Si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "An instant messaging service may be configured to receive transaction information and enable users to respond to those transactions through c...