ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,442, issued on April 21, was assigned to The Swatch Group Research and Development Ltd (Marin, Switzerland).
"Transponder equipped with a spiral antenna" was invented by Zoran Randjelovic (Corcelles, Switzerland) and Jerome Maspoli (Gampelen, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A transponder (1) including an electronic system (3) for managing the sending and receiving of data and a spiral antenna (2), the spiral antenna (2) including a wound strip forming a plurality of coils (11), the electronic system (3) being connected to the spiral antenna (2) by two connection points (6) arranged on the strip. The coils (11) included be...