ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,642, issued on March 25, was assigned to THE BOEING COMPANY (Arlington, Va.).

"Fabrication with regulated grain formation" was invented by Nathan A. Ashmore (Glendale, Mo.), Gary W. Coleman (Snohomish, Wash.), David Griffiths (Cambridge, Great Britain), Michelangelo Mortello (Cambridge, Great Britain), Robert James Scudamore (Sheffield, Great Britain) and Lei Xu (Cambridge, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of fabricating of an object includes causing a first heat source to heat a feed material to form a melt pool of the feed material on a surface. The method further includes causing a second heat source to heat ...