Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6769653 | Free size automatic watch display holder | Kinsen Ka Fai Au | 2004-08-03 |
| 6659408 | Free size automatic watch display holder | Kinsen Ka Fai Au | 2003-12-09 |
| 6550611 | Container with lock device for ring-shaped objects | Kinsen Ka Fai Au | 2003-04-22 |
| 6508355 | Jewelry box with security locker | Kinsen Ka Fai Au | 2003-01-21 |