Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7977810 | Signal coupling apparatus for power line communications using a three-phase four-wire power line | Sung Soo Choi, Kwan-Ho Kim | 2011-07-12 |
| 6753742 | Signal coupling apparatus for communication by medium voltage power line | Yo-Hee Kim, Kwan-Ho Kim, Won Tae Lee | 2004-06-22 |