Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6645718 | DNA sample collection for identification | Ming-Sun Liu, Varouj Amirkhanian | 2003-11-11 |
| 5313674 | Flushing device | Chin-Hua Hsieh | 1994-05-24 |
| 5224685 | Power-saving controller for toilet flushing | Chin-Hua Hsieh | 1993-07-06 |
| 5033715 | Infrared faucet | Chin-Hua Hsieh | 1991-07-23 |