Issued Patents 2024
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12030217 | Method of marking a diamond, markings formed from such methods and diamonds marked according to such method | Yau Chuen YIU, Ka Wing Cheng | 2024-07-09 |
| 11879859 | Process for determining the type of a diamond | Ka Wing Cheng, Yau Chuen YIU, Kong CHAN, Chun Hong SHAM, Juan CHENG | 2024-01-23 |