RQ

Ruizan Qin

Overall (All Time): #1,890,251 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11148754 Rear derailleur having rotation resistance function application and resistance application method — 2021-10-19
10435114 Bicycle gear shifter — 2019-10-08