Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6548436 | Cristobalite-free mullite grain having reduced reactivity to molten aluminum and method of producing the same | H. David Prior | 2003-04-15 |
| 6407023 | Cristobalite-free mullite grain having reduced reactivity to molten aluminum and method of producing the same | H. David Prior | 2002-06-18 |
| 5944888 | Spray insulating coating for refractory articles | Regis M. Perich, Harold D. Prior, Jr. | 1999-08-31 |
| 5766686 | Spray insulating coating for refractory articles | Regis M. Perich, Harold D. Prior, Jr. | 1998-06-16 |