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Inventor profile of:

David Yen

City:

Burnaby

Country:

Canada

Published Applications:

3

Last publication date:

2008-06-12

Recent patent applications by Yen David

David Yen from Burnaby, CA has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2008-06-12

US20080135093A1

Optoelectronic Device

#2 | 2007-12-13

US20070288979A1

Advertisement charging apparatus and method thereof

#3 | 2007-02-01

US20070027763A1

Interactive advertisement board

InventorID:

4190948 ⎘