ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,159, issued on Jan. 27, was assigned to SRAM LLC (Chicago).
"Electromechanical rear derailleur" was invented by Christopher Shipman (Chicago) and Brian Jordan (Chicago).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electromechanical rear derailleur is provided for a bicycle, including a base member for attachment to the bicycle. A movable member has a cage assembly attached thereto. A linkage is provided that couples the movable member to the base member and operative to enable movement of the movable member relative to the base member in a direction substantially parallel to the mounting axis. A power source powers an motor module connected ther...