ALEXANDRIA, Va., July 23 -- United States Patent no. 12,364,624, issued on July 22, was assigned to HEAROS LLC (Latham, N.Y.).
"Compressible fit earplug with planar insert" was invented by Howard S. Leight (Santa Monica, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An earplug for blocking sound and method of making the same, which includes a planar insert within an earplug of compressible slow recovery foam. A method of attenuating sound by inserting the earplug at an ear canal entry so that the planar insert is tactilely vertical, and pushing the earplug into the ear canal allowing the earplug to flex perpendicular to plana surfaces of the planar insert."
The patent was filed on Aug. 21, 2018, und...