ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,604, issued on July 21, was assigned to LINE Plus Corp. (Seongnam-si, South Korea).

"Method, computer device, and non-transitory computer-readable storage medium for keeping messages" was invented by HyunJoo Seo (Seongnam-si, South Korea), Sangbeom Kim (Seongnam-si, South Korea) and Hyo Jung Kim (Seongnam-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A message keeping method performed by at least one processor of a device includes receiving a selection input of at least one first message from among a plurality of messages included in a first chatroom, adding, based on the selection input, the at least one first message to a kept mes...