Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5930711 | Handoff test method between mobile communication switching stations | Dae-sik Kim, Yong-Tae Jeong | 1999-07-27 |
| 5867540 | Echo removing system between a mobile communication subscriber and a fixed communication subscriber | — | 1999-02-02 |