Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366141 | Treatment of coarse particle size zinc sulfide to improve visual and infrared transmission on hot-pressed articles | Alan R. Schwartz | 1982-12-28 |
| 4353878 | Tungsten recovery from tungsten ore concentrates by caustic digestion | Lucretia R. Quatrini, Marie B. Terlizzi | 1982-10-12 |
| 4353879 | Tungsten recovery from tungsten ore concentrates by caustic digestion | Lucretia R. Quatrini | 1982-10-12 |
| 4353881 | Tungsten recovery from tungsten ore concentrates by caustic digestion | Lucretia R. Quatrini, Martin Vogt | 1982-10-12 |