ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,671, issued on Dec. 16, was assigned to The Swatch Group Research and Development Ltd (Marin, Switzerland).

"Flexible guide assembly for a rotary horological resonator mechanism" was invented by Mohammad Hussein Kahrobaiyan (Boudevilliers, Switzerland) and Gianni Di Domenico (Neuchatel, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A flexible guide assembly (10) including a fixed support (22) and three flexible guides arranged in series, the first flexible guide including a first movable element (23) relative to the fixed support (22), a first pair of uncrossed flexible blades (26, 27) connected to the first movable element (23), the se...