Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843042 | Alkaline earth fluoride additive for sintering aluminum nitride | Ronald H. Arendt, Wayne D. Pasco | 1989-06-27 |
| 4810679 | Rare earth fluoride additive for sintering aluminum nitride | Ronald H. Arendt, Wayne D. Pasco | 1989-03-07 |