Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7281963 | Energy-conserving swim fin | — | 2007-10-16 |
| 6679253 | Automatic water stopper for snorkel | — | 2004-01-20 |
| D473256 | Diving mask | — | 2003-04-15 |
| 5868593 | Flipper structure | — | 1999-02-09 |
| 5692627 | Nursing bottle with an air vent of the bottom thereof | — | 1997-12-02 |
| 5564130 | Diving mask with a soft nose projection and a drain mechanism | — | 1996-10-15 |
| 5558466 | Diving mask with a structure for drain and flow guide | Tzong-Fu Kuo | 1996-09-24 |
| 5467508 | Tightening-up belt | — | 1995-11-21 |
| 5267556 | Snorkel with a laterally extended downward opening for airflow entry and a universally adjustable mouthpiece | — | 1993-12-07 |