ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,566, issued on May 13, was assigned to Columbia Sportswear North America Inc. (Portland, Ore.).
"Double-walled insulation fabrics" was invented by Rebecca Lynn Johnson (Portland, Ore.), Joseph P. Boyle (Portland, Ore.) and Debra Criss (Portland, Ore.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments herein provide a thermally insulated garment having a shell, a lining that is secured to the shell at a plurality of points to form a plurality of compartments, a thermally insulating filling contained within each of the plurality of compartments, and an outer layer disposed adjacent to the shell, wherein the outer layer overlays the plurality o...