Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9903049 | Silicon hairspring | Ho CHING | 2018-02-27 |
| 8882341 | Stress-relief elastic structure of hairspring collet | Siu Kay Chu, Ho CHING | 2014-11-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9903049 | Silicon hairspring | Ho CHING | 2018-02-27 |
| 8882341 | Stress-relief elastic structure of hairspring collet | Siu Kay Chu, Ho CHING | 2014-11-11 |