ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,722,221, issued on Sept. 1, was assigned to UNICON LLC (Long Island City, N.Y.).

"Method and apparatus for improving the quality of a butt weld" was invented by Jason Chadee (Long Island City, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a ceramic shelf assembly for aiding formation of a butt weld of adjacent metal plates in a groove formed between adjoining plates. The assembly has at least one ceramic block having at least one straight edge. The assembly further provides an apparatus for removably attaching the rear side of the ceramic block to a front surface of one of the adjacent metal plates along an edge of the groove."

The pa...