ALEXANDRIA, Va., June 6 -- United States Patent no. 12,282,298, issued on April 22, was assigned to The Swatch Group Research and Development Ltd (Marin, Switzerland).

"Horological movement provided with an oscillator comprising a piezoelectric spring" was invented by Matthias Imboden (St-Blaise, Switzerland), Alexandre Haemmerli (Neuchatel, Switzerland), Alexandre Didier (Erlach, Switzerland) and Cedric Nicolas (Neuchatel, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A horological movement includes an analogue time display, a gear train, a barrel driving the analogue display via the gear train, and an oscillator formed of a resonator, including a balance and a piezoelectric spring, and a mecha...