US Patent Issued to 3M Innovative Properties on Aug. 4 for "Acoustic insert for earpiece" (Canadian Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,701,354, issued on Aug. 4, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Acoustic insert for earpiece" was invented by Antoine Bernier (Montreal), Katrin Braun (Montreal) and Bernard Daoust (Sutton, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "An earpiece includes a shell forming a cavity and a sound channel having a first end connected to and in communication with the cavity, and a second end opposite to the first end, the sound channel forming a single pass-through cavity extending from the first end to the second end; an insert disposed within the cavity; a speaker; a circuit board assembly mounted onto the insert, the circ...