Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5748174 | Video display system including graphic layers with sizable, positionable windows and programmable priority | Wai Sing Wong, Kam-chi Chao | 1998-05-05 |
| 5719597 | Apparatus for scanning user input devices | — | 1998-02-17 |
| 5219291 | Electronic educational video system apparatus | Wai-Kwok Chew, Garry C. Law | 1993-06-15 |