WS

Wai-Hung Siu

Overall (All Time): #1,635,335 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5951362 Safety high speed electric toy vehicle — 1999-09-14
5775972 Toy vehicle with an improved steering mechanism — 1998-07-07
5762554 Closed-loop steering control mechanism — 1998-06-09