ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,402, issued on Nov. 3, was assigned to Sandler AG (Schwarzenbach, Germany).
"Acoustically effective and dimensionally stable molded part" was invented by Stefan Herrmann (Doehlau, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Acoustically effective molded part which is dimensionally stable after pressure and heat treatment, consisting of a mechanically solidified staple fiber nonwoven fabric formed from fibers, namely from matrix fibers, bicomponent hotmelt adhesive fibers and thermoplastic adhesive fibers, as well as comprising an outer layer and a middle layer, wherein flattenings formed by adhesive fibers are located on the outer layers o...