HH

Hsi-Yin Ho

Overall (All Time): #1,637,647 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5720905 Cleaning apparatus with ozone and bubble generating means 1998-02-24
5680658 Urinal flushing control device 1997-10-28
5667756 Structure of ozonizer 1997-09-16