ALEXANDRIA, Va., July 28 -- United States Patent no. 12,694,858, issued on July 28, was assigned to Pratt & Whitney Canada Corp. (Longueuil, Canada).

"Acoustic panel with non-linear variable percentage of open area" was invented by Sid-Ali Meslioui (Brossard, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic panel is provided that includes a first skin, a second skin and a cellular core. The first skin includes a plurality of perforations. The perforations are configured to provide the first skin with a percentage of open area that changes according to a non-linear function as the first skin extends in a first direction. Sizes of at least some of the perforations vary as the first skin extend...