Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5782955 | Low oxygen-content metallurgical silicon and ferrosilicon | Thomas Margaria | 1998-07-21 |
| 5577065 | Device for mounting a self-baking electrode for an electric arc furnace | — | 1996-11-19 |