HT

Hung-Cheng Tsai

EC Ez Trend Technology Co.: 2 patents #1 of 2Top 50%
Overall (2004): #61,181 of 270,089Top 25%
2
Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6807834 Electric door lock with a coupling mechanism for selective engagement between a deadbolt operating spindle and a door handle — 2004-10-26
6761051 Electric padlock — 2004-07-13