Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6651263 | Toilet tank having a two-stage flushing device | Pang-Yen Tsai | 2003-11-25 |
| 6041452 | Water-saving toilet | Pang-Yen Tsai | 2000-03-28 |
| 5483706 | Flush device for toilet | Pang-Yen Tsai | 1996-01-16 |
| 5414877 | Flush device for water closet | Pang-Yen Tsai | 1995-05-16 |
| 5396666 | Flush device for toilet | Pang-Yen Tsai | 1995-03-14 |