HT

Herman Yik Wai TSUI

Overall (All Time): #2,009,675 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9381267 Apparatus for air purification and disinfection 2016-07-05
8361402 Apparatus for air purification and disinfection 2013-01-29