ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,434,133, issued on Oct. 7.
"Pickagram three-dimensional puzzle" was invented by Gil Ryong Song (Gimpo-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pickagram three-dimensional puzzle comprises seven 3D blocks and a plurality of magnetic members located inside each 3D block to couple the neighboring 3D blocks to one another through magnetic forces generated therefrom. A first 3D block of the seven 3D blocks has the shape of a right triangle on a plane and include a first top face, a first bottom face located to be opposite to the first top face, a first lateral face for connecting the boundary edges of the first top face and the boundar...