Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4683937 | Ingot mold and method of producing same | Paul E. Hamill, Jr. | 1987-08-04 |
| 4473983 | Anchoring refractory materials to a refractory lining | — | 1984-10-02 |
| 4428730 | Insulation for a furnace member | Clyde Holmes | 1984-01-31 |