US Patent Issued to Winds Enterprises on March 25 for "Heather spun yarns and fabrics, and methods for producing the same" (American, Chinese Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,686, issued on March 25, was assigned to Winds Enterprises Ltd. (Hong Kong, Hong Kong).

"Heather spun 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 spun heather yarn includes first pre-colored staple fibers comprising first polyester fibers dyed with a first cationic dyestuff, and second pre-colored staple fibers comprising second polyester fibers dyed with a second cationic dyestuff. A knitted heather fabric includes a plurality of the spun heather yarns knitted together to form the ...