ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,952, issued on Sept. 8.

"Bottom bracket gearshift for an electric bicycle and electric bicycle with such a bottom bracket gearshift" was invented by Karlheinz Nicolai (Lubbrechtsen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Presented herein is a bottom bracket gearshift (1) of an electric bicycle (64) with an auxiliary drive (22), in particular in the form of a central motor. The bottom bracket gearshift (1) has a shift gearbox (4). In order to make the shift gearbox as small and light as possible, an input stage (14) is arranged at the transmission input (10) of the shift gearbox (4). The input stage (14) may be arranged between a bott...