CH

Chi-Chen Hsiao

Overall (All Time): #1,021,525 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7942164 Dual-purpose gas stove switch — 2011-05-17
6470914 Switch device for gas burner — 2002-10-29
6405751 Gas safety valve — 2002-06-18
6155285 Gas safety valve — 2000-12-05
5983928 Gas safety valve — 1999-11-16