Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6409962 | Powder injector for ladle | — | 2002-06-25 |
| 4349775 | Temperature compensated voltage regulator for photovoltaic charging systems | Yiduk Kwon | 1982-09-14 |
| 4327318 | Source shedding regulator | Yiduk Kwon | 1982-04-27 |