ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,307, issued on May 6, was assigned to HL MANDO Corp. (Gyeonggi-do, South Korea).
"Electric bicycle driving device and method therefor" was invented by Kyung Ho Hong (Seoul, South Korea) and Seungkyung Lee (Gyeonggi-do, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a system for driving a chainless electric bicycle comprising: a driving wheel; a pedal; a motor mechanically connected to the driving wheel; a generator mechanically connected to the pedal; and a battery, wherein provided is a system comprising: a generator location sensor for measuring the value of a rotation location of the generator; a motor...