ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,462,650, issued on Nov. 4, was assigned to Tien-Shu Hsu (Taichung, Taiwan).
"Game system and operation method thereof" was invented by Shun-Tsung Hsu (Taichung, Taiwan), Chang-Yi Wang (Taichung, Taiwan) and Lien-Yung Lin (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "When a control unit in a game system of the present invention stops rollers of a next free game from rolling during performing a plurality of consecutive free games, a special symbol appearing in a free game currently performed overlaps a game symbol appearing in the free game performed next. Accordingly, players can not only feel the fun of accumulating the special symbols...