Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10004853 | Prefillable auto-retractable safety syringe | Wen-Hsu Chang | 2018-06-26 |
| 8449505 | Automatically retractable medically safety injector and plunger combination thereof | — | 2013-05-28 |
| 8088110 | Automatically retractable safety injector for non-liquid material | Ming Tsung Kuo | 2012-01-03 |
| 7674241 | Safe medical-drug injector and collapsible plunger combination thereof | — | 2010-03-09 |