US Patent Issued to ROLEX on July 14 for "Process for producing a thermo-compensated oscillator" (Swiss Inventor)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,681,435, issued on July 14, was assigned to ROLEX SA (Geneva).

"Process for producing a thermo-compensated oscillator" was invented by Olivier Hunziker (Vevey, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for manufacturing a timepiece oscillator made up of a balance and of at least two spring portions that are arranged in parallel, which includes (a) choosing the frequency f of the oscillator, (b) choosing a balance and spring portions so that the inertia of the balance and the angular stiffnesses of the spring portions allow an oscillator of chosen frequency f to be formed and so that the variations in angular stiffness of the s...