Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5611465 | Automatic toilet bowl cleaner | Kuo-Chou Lee, Tsang-Chang Hwang | 1997-03-18 |
| 5492247 | Automatic soap dispenser | Tsang-Chang Hwang, Kuo-Chou Lee | 1996-02-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5611465 | Automatic toilet bowl cleaner | Kuo-Chou Lee, Tsang-Chang Hwang | 1997-03-18 |
| 5492247 | Automatic soap dispenser | Tsang-Chang Hwang, Kuo-Chou Lee | 1996-02-20 |