Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6752452 | Two-position collapsible reclining chair | Ho Sik Byun | 2004-06-22 |
| 5964729 | Perforating device for dermal administration | Kwang Kyun Jang | 1999-10-12 |
| 4627604 | Adjustable clamp | — | 1986-12-09 |