RF

Ronnie Chee Keung Fan

📍 Lafayette, CA: #162 of 569 inventorsTop 30%
🗺 California: #106,790 of 386,348 inventorsTop 30%
Overall (All Time): #1,028,804 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7621547 Occupant-pedaled drive mechanism for scooter — 2009-11-24
6270102 Drive mechanism for scooter — 2001-08-07
6241269 Drive mechanism for vehicle — 2001-06-05
6131933 Drive mechanism for vehicle — 2000-10-17
6079727 Occupant pedaled skateboard — 2000-06-27