Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6668065 | Bone-conduction transducer and bone-conduction speaker headset therewith | Sang Chul Lee | 2003-12-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6668065 | Bone-conduction transducer and bone-conduction speaker headset therewith | Sang Chul Lee | 2003-12-23 |