ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,172, issued on Sept. 23.
"Geometric puzzles" was invented by Angela S. Williams (Texarkana, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Geometric puzzles may include a puzzle core. A puzzle faces may be provided on the puzzle core. Each puzzle face may include a puzzle piece guide. The puzzle piece guide may form a central axis of rotation of each corresponding puzzle face. Puzzle pieces supported by the puzzle core may be concentrically arranged around, detachably engage, and revolvable about the puzzle piece guide. At least one visual pattern may be provided on each puzzle piece. The puzzle faces may each be rotatable by revolving the pu...