Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5650121 | Coated expendable refractory lining having improved resistance to erosive and corrosive materials | Charles R. Rumpeltin, Jr. | 1997-07-22 |
| 5602063 | Lightweight sprayable tundish lining composition | Charles R. Rumpeltin, Jr. | 1997-02-11 |