Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6619790 | Ink-jet printer cartridge upper cover | Yiu Cheong Law | 2003-09-16 |
| 6567636 | Toner cartridge with a toner stirring mechanism | Yiu Cheong Law | 2003-05-20 |
| 6560425 | Shutter device for a photosensitive rotary drum on the process cartridge | Yiu Cheong Law | 2003-05-06 |
| 6508601 | Charging contact plate | Yiu Cheong Law | 2003-01-21 |