Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805555 | Composite curtain assembly for continuous furnace entrance and exit | Ngoc N. Nguyen | 2004-10-19 |
| 6575738 | Composite refractory insulating tile | Ngoc N. Nguyen | 2003-06-10 |
| 6179610 | Composite refractory tile for metallurgical furnace members | Paul V. Suey | 2001-01-30 |