ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,917, issued on March 18, was assigned to SAFRAN CERAMICS (Le Haillan, France).

"Method for manufacturing an acoustic panel" was invented by Aurelia Clerambourg (Moissy-Cramayel, France), Eric Bouillon (Moissy-Cramayel, France) and Eric Philippe (Moissy-Cramayel, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing a composite panel is described. The method includes producing a first wall, a second wall, a third wall and a fourth wall from composite materials including an oxide matrix and long oxide fibres; from the first and second walls, producing a cellular core including a plurality of cells, each cell including a fir...