Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880757 | Chemical preparation of zirconium-aluminum-magnesium oxide composites | Thomas S. Witkowski | 1989-11-14 |
| 4843045 | Process of making ceramic composites with improved thermal shock resistance | Ronald R. Smyth | 1989-06-27 |
| 4834798 | Corrosion resistant refractory coating | Alan J. Cisar | 1989-05-30 |