Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9739256 | Driving structure for power generator along coastal land using kinetic energy of wave | Chi-Chin Hsu, Tsan-Chang Huang | 2017-08-22 |
| 8936179 | Anti-leakage liquid soap valve structure | Chi-Chin Hsu, Tsan-Chang Huang | 2015-01-20 |
| 7028975 | Flush valve structure | Tsan-Chang Huang, Chi-Chin Hsu | 2006-04-18 |
| 6659420 | Manual and automatic flow control valve | Tsang-Chang Hwang, Chi-Chin Hsu | 2003-12-09 |
| 6036056 | Automatic soap dispensing device | Tsang-Chang Hwang | 2000-03-14 |
| 5611465 | Automatic toilet bowl cleaner | Tsang-Chang Hwang, Aling Shu | 1997-03-18 |
| 5492247 | Automatic soap dispenser | Aling Shu, Tsang-Chang Hwang | 1996-02-20 |