ALEXANDRIA, Va., March 24 -- United States Patent no. 12,582,188, issued on March 24, was assigned to Bell Sports Inc. (Scotts Valley, Calif.).

"Protective helmet with multiple pseudo-spherical energy management liners" was invented by Eamon Briggs (Santa Cruz, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A helmet comprising an outer liner and an inner liner slidably coupled to an interior surface of the outer liner is disclosed. The outer liner comprises an interior surface and the inner liner comprises an exterior surface. The inner liner is composed of an elastically deformable material. A majority of the interior surface of the outer liner and a majority of the exterior surface of the inner line...