ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,770,527, issued on Oct. 20, was assigned to MATA EDU INC. (Seoul, South Korea).

"Method, system, and non-transitory computer-readable recording medium for estimating concept understanding" was invented by Tae Hyoung Oh (Seoul, South Korea), Myunghoon Ahn (Seoul, South Korea), Du Seop Jung (Seongnam-si, South Korea), Sang Hoon Lee (Seoul, South Korea) and Jaehyeong Ahn (Bucheon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for estimating concept understanding is provided. The method includes the steps of: generating concept-specific correctness/incorrectness sequence data with respect to at least one user, with reference to data...