Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5363995 | Slide gate plate and method | — | 1994-11-15 |
| 5338711 | High alumina refractory shapes | Stanley A. Smith | 1994-08-16 |
| 5279779 | High alumina insulating refractory product and method for making same | — | 1994-01-18 |
| 5212126 | Aluminum resistant refractory and method | Thomas R. Kleeb | 1993-05-18 |