ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,520,898, issued on Jan. 13, was assigned to ABUS August Bremicker Sohne KG (Wetter-Volmarstein, Germany).
"Protective helmet" was invented by Jean-Francois Caron (Berlin) and Stefan Richert (Berlin).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a protective helmet, in particular a sports helmet, with a shock-absorbing helmet shell and a visor, on each of two opposite sides of the protective helmet, a coupling section of the helmet shell and a coupling section of the visor are formed, one of which is configured as a coupling receptacle and the other as a coupling extension and in such a way that, the coupling extension may engage in the coupling recep...