Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7385879 | Radio-controlled clock | Charles Wong Tak Chung | 2008-06-10 |
| 7054233 | Wall clock with dial illumination | Charles Wong Tak Chung | 2006-05-30 |
| 7012856 | Radio-controlled clock | Charles Wong Tak Chung | 2006-03-14 |
| 6987710 | Alarm clock with dial illumination | Charles Wong Tak Chung | 2006-01-17 |
| D481958 | Clock | Charles Wong Tak Chung | 2003-11-11 |
| D481641 | Clock | Charles Wong Tak Chung | 2003-11-04 |