Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6660070 | Air purifier | Chi Cheung Chung, Wing Chung Li | 2003-12-09 |
| 6382084 | Electric toaster | Wing Chung Li | 2002-05-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6660070 | Air purifier | Chi Cheung Chung, Wing Chung Li | 2003-12-09 |
| 6382084 | Electric toaster | Wing Chung Li | 2002-05-07 |