ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,058, issued on Aug. 19, was assigned to Winds Enterprises Ltd. (China Hong Kong, Hong Kong).

"Heather filament yarns and fabrics, and methods for producing the same" was invented by Paul Urban Geiwald (Encinitas, Calif.), Lean Teik Heng (Shanghai) and Yu Chung Lo (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "A heather filament yarn includes first pre-colored filaments comprising first polyester filaments dyed with a first cationic dyestuff, and second pre-colored filaments comprising second polyester filaments dyed with a second cationic dyestuff. A knitted heather fabric includes a plurality of the heather filament yarns knitted togethe...