Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7664540 | Bluetooth earphone set with wire control function | — | 2010-02-16 |
| 7447308 | Low-noise transmitting receiving earset | — | 2008-11-04 |
| 7362876 | Interference-free transmitting receiving earset | — | 2008-04-22 |
| 7141039 | Structure of safety hypodermic syringe | — | 2006-11-28 |
| 6423033 | Safety hypodermic syringe | — | 2002-07-23 |