ALEXANDRIA, Va., July 30 -- United States Patent no. 12,374,231, issued on July 29, was assigned to CASIO COMPUTER Co. LTD. (Tokyo).

"Educational web service providing method, recording medium, and server" was invented by Takayuki Inoue (Tachikawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An educational web service providing method includes accepting input of an answer to a question and a process until the answer is derived, displaying the answer and the process on a display, and transmitting the answer and the process in association with each other to a server."

The patent was filed on Feb. 1, 2022, under Application No. 17/590,356.

*For further information, including images, charts and tables...