ALEXANDRIA, Va., June 2 -- United States Patent no. 12,642,336, issued on June 2, was assigned to The Swatch Group Research and Development Ltd (Marin, Switzerland).
"Bracelet strand with optical effect" was invented by Sophie Napoli (Neuchatel, Switzerland), Nicolas Francois (Neuchatel, Switzerland) and Marek Dovcik (Mougins, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a bracelet strand made of a transparent or translucent elastomer material, comprising a first end capable of connecting to a watch case, characterised in that it comprises a rigid insert having a solid part forming a reinforcement, and a hollow part arranged to receive a fluid and solid elements dispersed in...