Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5309071 | Zinc sulfide electroluminescent phosphor particles and electroluminescent lamp made therefrom | Ronald E. Karam | 1994-05-03 |
| 5273774 | Method of making zinc sulfide electroluminescent phosphor particles | Ronald E. Karam | 1993-12-28 |
| 5269966 | Method of making zinc sulfide precursor material for a copper-activated zinc sulfide electroluminescent phosphor | Ronald E. Karam | 1993-12-14 |
| 4525206 | Reduction process for forming powdered alloys from mixed metal iron oxides | Stuart L. Soled, Robert William Kershaw | 1985-06-25 |