Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6780213 | Personal air cleaning apparatus | Oh Hyun Roh | 2004-08-24 |
| 6746041 | Portable air bag system | Su-Jin Chang | 2004-06-08 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6780213 | Personal air cleaning apparatus | Oh Hyun Roh | 2004-08-24 |
| 6746041 | Portable air bag system | Su-Jin Chang | 2004-06-08 |