Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9174142 | Fastening structure | Tae Won Lee, Kwang-Sik Park | 2015-11-03 |
| 6647023 | Voice coding conversion circuit between office exchange and ISDN keyphone system | — | 2003-11-11 |
| 5996370 | Refrigeration compartment door for refrigerators | — | 1999-12-07 |
| 5881128 | Technique for preventing data stored in a memory of telephone system from being corrupted during power failure | — | 1999-03-09 |