ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,779,254, issued on Nov. 3, was assigned to Milwaukee Electric Tool Corp. (Brookfield, Wis.).

"Multilayer face-covering" was invented by Collin D. Roesser (Milwaukee) and Emelie E. Troedson (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multilayered face-covering is provided with at least two layers and joined with a centrally located merge stitch or nose seam. The outer is a thicker knitted cloth material with a higher thread-weight and/or thread-count than the inner layer to create an increased stiffness on the outer layer that resists compressive buckling. The inner layer is lightweight and provides a comfortable cushion against the user's s...