ALEXANDRIA, Va., April 21 -- United States Patent no. 12,608,085, issued on April 21, was assigned to Logitech Europe S.A. (Lausanne, Switzerland).

"Magnetic actuation for impact-based feedback effects in a key structure" was invented by Leo Zeender (Lausanne, Switzerland), Frederic Alexis Guillaume de Goumoens (Morges, Switzerland) and Nuno Miguel Pereira Dos Anjos Valverde (Vaud, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A keyswitch for a keyed device, the keyswitch comprising: a housing with an inner structure defining a cavity within; a plunger protruding from a top side of the housing and extending into the cavity, the plunger operable to be depressed and travel along a linear range of ...