ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,134, issued on Dec. 16.
"Electrical derailleur controller" was invented by Hazem Nihad Hamed (New Smyrna Beach, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bicycle electrical derailleur controller making use of a wireless two way communication protocol to receive actuation commands for a front and rear derailleurs from an operator user interface such as a cellphone and including a power pack to accordingly actuate each of controlled front and rear derailleur through two discrete wired connections, and further including an input for a cadence sensor, integral and therefore environmentally protected inertial and environmental sensing modules...