Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9901895 | Method of marking material and system therefore, and material marked according to same method | Koon Chung HUI, Ching Tom KONG | 2018-02-27 |
| 9903049 | Silicon hairspring | Pui Hang KO | 2018-02-27 |