Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4540914 | Absorbing graded nitride film for high contrast display devices | — | 1985-09-10 |
| 4297584 | Rare earth phosphors and phosphor screens | Robert A. Buchanan, Alden F. Sklensky | 1981-10-27 |