ALEXANDRIA, Va., April 2 -- United States Patent no. 12,264,841, issued on April 1, was assigned to Naber Holding GmbH & Co. (Nordhorn, Germany).

"Silencer for mounting in an air duct" was invented by Hans-Joachim Naber (Nordhorn, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A silencer for installation in an air duct, in particular in a flat duct, having at least one sound-absorbing damping element extending essentially in a longitudinal direction (X), and having at least one holding device which accommodates the damping element at least in sections and has a fastening device for fixing the silencer in the air duct. An assembly comprising an air duct and such a silencer is further described."

The ...