ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,556,401, issued on Feb. 17, was assigned to KAKAO CORP. (Jeju-si, South Korea).

"Method and apparatus for delivering signed content" was invented by Chun Ho Kim (Seongnam-si, South Korea), Yong Ha Yoo (Seongnam-si, South Korea), Woo Young Park (Seongnam-si, South Korea) and Myung Jun Kim (Seongnam-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic apparatus may include a processor configured to sign content being inputted in response to a input by a first user of the electronic apparatus using authentication information of the first user, a display configured to visualize a graphic representation indicating the signed content b...