Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6953449 | Hypodermic syringe having plunger pull-out stopping structure | — | 2005-10-11 |
| 6761707 | Safety syringe having needle holder capable of fixing secured and easy to drawback | Tzu-Sheng Fan, Chien-Wei Chung | 2004-07-13 |
| 6733475 | Safety syringe of easy to pull out the plunger | Tzu-Sheng Fan, Chien-Wei Chung | 2004-05-11 |