CC

Chun-Cheng Chang

Overall (2002): #31,919 of 266,432Top 15%
3
Patents 2002

Issued Patents 2002

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6474661 Base structure for roller skates — 2002-11-05
6406037 Wheel assembly for a roller skate — 2002-06-18
6334621 Easy-to-install/detach skate base for a roller skate — 2002-01-01