Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7606877 | Method and system for detailed accounting of packet data | Ji-Woong Lee, Un-Hae Choi, Dong-Gi Yang | 2009-10-20 |
| 5836047 | Vacuum cleaner for both upright and canister modes | Jin Bang Lee, Seon Kyu Kim, Yeong-je Jeon, Seon Young Hong, Nam-Ho Lee | 1998-11-17 |
| 5596236 | Motor capable of using high or low voltage | Jin Bang Lee, Nam-Ho Lee, Seon Kyu Kim | 1997-01-21 |