ALEXANDRIA, Va., March 26 -- United States Patent no. 12,260,031, issued on March 25, was assigned to Logitech Europe S.A. (Lausanne, Switzerland).
"Hubless scroll wheel" was invented by Leo Zeender (Lausanne, Switzerland), Jean-Claude Dunant (Fey, Switzerland) and Frederic Alexis Guillaume de Goumoens (Vaud, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hubless scroll wheel for a computer peripheral device may include a wheel defining an open interior. The wheel may include a plurality of contactless indexing features positioned at different angular positions. The scroll wheel may include at least one fixed contactless ratchet member disposed within the open interior of the wheel. The wheel m...