ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,526, issued on March 25.
"Assemblable polygonal three-dimensional building blocks" was invented by Hao-Hsuan Hsu (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A polygonal three-dimensional building blocks comprises: a main body having a central area and at least three abutment side walls, the central area located among the abutment side walls; the abutment side walls connected to each other in a ring shape and having a slanted surface respectively, each one of the abutment side walls having a first side edge and a second side edge respectively, the first side edge and the second side edge arranged at two opposite sides of each on...