YC

Yen-Chen Chan

Overall (2004): #6,670 of 270,089Top 3%
5
Patents 2004

Issued Patents 2004

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6810988 Speaker's damper with lead wire and guide sleeve — 2004-11-02
6757402 Knockdown speaker — 2004-06-29
6732832 Speaker damper — 2004-05-11
6724907 Tweeter support rack structure — 2004-04-20
6674871 Positioning device for diaphragm for speakers — 2004-01-06