ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,106, issued on March 18, was assigned to Illinois Tool Works Inc. (Glenview, Ill.).

"Coupler for threaded reinforcing bar" was invented by James Stone (Melbourne, Australia), Andrew Coumaros (Melbourne, Australia), Jonathan Lim (Melbourne, Australia) and Bryan Kennedy (Glenview, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A coupler including a fitting for mounting to externally threaded reinforcing bar for use in concrete construction, the fitting including a body having a portion with an internal thread for engagement with the thread of the reinforcing bar, wherein the internal thread has an asymmetric thread form having an outer ramped po...