ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,773,647, issued on Oct. 27.
"Set of toy building blocks" was invented by Florian Holz (Willich, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A building block toy set, including building blocks, including a multisided flat base plate including a base plate bottom side and a base plate top side, side walls connected at edges of the base plate bottom side at an angle of 90 degrees, cylindrical primary protrusions arranged at the base plate top side; cylindrical secondary protrusion arranged at the base plate bottom side at a uniform distance from insides of the side walls, so that the primary protrusions are insertable and clampable between the s...