ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,439,989, issued on Oct. 14, was assigned to ABUS August Bremicker Sohne KG (Wetter-Volmarstein, Germany).
"Liner" was invented by Marc Von Dunten (Essen, Germany), Lukas Tamajka (Herdecke, Germany) and Matthias Ocklenburg (Muhltal Traisa, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liner for insertion into a concavely curved inside of an associated protective helmet, in particular a bicycle helmet, which extends along a longitudinal direction from a front side to a rear side, comprises at least two anchoring points for anchoring the liner to the protective helmet. The liner is also configured to be put under a shear stress along the inside ...