LW

Lau Ying Wai

Overall (All Time): #1,551,954 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8167964 Cyclonic chamber for air filtration devices — 2012-05-01
D633666 Upright vacuum cleaner — 2011-03-01
7789922 Cyclonic chamber for air filtration devices — 2010-09-07