ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,939, issued on April 21, was assigned to Shaw Industries Group Inc. (Dalton, Ga.).

"Polymer fiber with additive and methods and articles related thereto" was invented by Christopher S. Bryant (Rocky Face, Ga.), Alexander Freas (Andalusia, Ala.), Tansley Cornwell (Rome, Ga.), Luke Tixier (Dozier, Ala.), Alan Schaff (Easley, S.C.), Jonathan Hatch (Mckenzie, Ala.) and Caleb Cochran (Opp, Ala.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described is a fiber containing at least one polymer and at least one additive. The concertation of the additive is not constant throughout the fiber, but changes along the length of the fiber. Also disclosed is a me...