Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6771780 | Tri-functional dual earphone device | His-Yuan Lai | 2004-08-03 |
| D452857 | Hands free microphone and earphone | — | 2002-01-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6771780 | Tri-functional dual earphone device | His-Yuan Lai | 2004-08-03 |
| D452857 | Hands free microphone and earphone | — | 2002-01-08 |