ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,570, issued on Sept. 8, was assigned to TECHNISCHE UNIVERSITEIT EINDHOVEN (Eindhoven, Netherlands).

"Anechoic termination for acoustic plane wave suppression" was invented by Mohammad Kojourimanesh (Eindhoven, Netherlands), Viktor Kornilov (Eindhoven, Netherlands), Ines Lopez Arteaga (Eindhoven, Netherlands) and Philip De Goey (Eindhoven, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic dampener for a duct carrying an acoustic signal, the acoustic dampener comprising a plurality of laminar surfaces stacked on top of one another and separated from one another, thereby creating a stack, wherein the plurality of laminar surfaces i...