Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6397480 | Mechanism for sharpening a writing instrument | Chung Yin Ronald Mak, Chung Ming Mak | 2002-06-04 |
| D457190 | Clip dispenser | Chung Yin Ronald Mak, Chung Ming Mak | 2002-05-14 |