ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,064, issued on June 3, was assigned to Johns Manville (Denver).
"Carpet tile with wet laid dual layer nonwoven mat" was invented by Richard T Hausman (Waterville, Ohio), Souvik Nandi (Highlands Ranch, Colo.), Philip Christopher Sharpe (Weddington, N.C.) and Steven Westbrook (Mount Juliet, Tenn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A carpet tile, includes a pile fabric layer, a primary backing coupled with the pile fabric layer, a secondary backing coupled with the primary backing, and a dual-layer wet-laid nonwoven mat. The dual-layer wet-laid nonwoven mat includes a first layer comprising a plurality of glass fibers and a first binder and ...