Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6683590 | Tricolor LED display system having audio output | Grantham Kwok-Hung Pang, Edward S. Yang, To Kwan, Chi Ho CHAN | 2004-01-27 |
| 6445369 | Light emitting diode dot matrix display system with audio output | Edward S. Yang, Grantham Kwok-Hung Pang, Chris Sun-Kin Yeung, David Yang, Michael Kin-Ming Hong +3 more | 2002-09-03 |