ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,377,363, issued on Aug. 5.
"Magnetic building block" was invented by Mianli Li (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a magnetic building block, including a main housing, a top cover, a bottom cover, and magnets. The main housing is cuboid-shaped, the main housing is provided with a cavity, and an upper opening and a lower opening are formed on a pair of opposite faces of the main housing. The top cover is detachably connected to the upper opening, the bottom cover is detachably connected to the lower opening, and a mounting groove is formed on either of the top cover and the bottom cover. The magnet is arranged ins...