ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,322, issued on March 31, was assigned to Shenzhenshi Libyankejiyouxiangongsi (Guang Dong Sheng, Taiwan).
"Magnetic building block" was invented by Li Chuanzhan (Guang Dong Sheng, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A magnetic building block includes a pair of clamshell structures, each formed as a parallelepiped with an open side and attachment tubes extending from end walls toward the open sides. An attachment bracket with opposing sides and multiple posts fits into corresponding attachment tubes to join the clamshells. Corner walls extend toward the open sides at each corner, and magnets are positioned on extension tubes that pro...