Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4970057 | Silicon nitride vacuum furnace process | Stephen D. Hartline, Normand P. Arsenault | 1990-11-13 |
| 4885199 | Fiber-reinforced silicon nitride composite ceramics | Normand D. Corbin | 1989-12-05 |