Inventor
He guotai
CN4 patents
Patents
4 patentsUS11055804B2Jul 6, 2021
Heartbeat control system for shared bicycles
HANGZHOU QINGQI SCIENCE AND TECH CO LTD2 citations66
US11292545B2Apr 5, 2022
Multimedia systems for shared bicycles
HANGZHOU QINGQI SCIENCE AND TECH CO LTD0 citations56
US11485316B2Nov 1, 2022
Lock communication system and method for shared bicycle
HANGZHOU QINGQI SCIENCE AND TECH CO LTD0 citations47
US11110985B2Sep 7, 2021
Multimedia system of a shared bicycle
HANGZHOU QINGQI SCIENCE AND TECH CO LTD0 citations46