ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,861, issued on May 6, was assigned to Illinois Tool Works Inc. (Glenview, Ill.).

"Connection system" was invented by Greg Stephen Mason (Brisbane, Australia) and Andrew McFarland (Brisbane, Australia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A connection system for providing a construction joint between a first concrete component and a second concrete component, the connection system including a rebate former for forming a rebate in a first concrete component, wherein the rebate former is formed of sheet metal, the rebate former including an elongated backing, the elongated backing having folded edges to a predefined depth."

The patent was fil...