ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,600, issued on Dec. 23, was assigned to Sphero Inc. (Greenville, Texas).
"Puzzle with conductive path" was invented by Yehuda Binder (Hod-Hasharon, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "System and method for additional amusement, entertaining and surprising visual or audible reward provided upon completing the reconstructing of a two-dimensional or three-dimensional jigsaw puzzle. The puzzle pieces include conductive pads connected by a conductor such as a wire, a metallic strip or a conductive paint, so that upon assembling the puzzle, the pads are in contact to form a continuous conductive path. The frame or the puzzle pieces inclu...