Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7138757 | High lumen output fluorescent lamp with high color rendition | Katalin Toth, Ottokar GYULASI | 2006-11-21 |
| 4806825 | Infra-red phosphors | Martin John Fuller | 1989-02-21 |
| 4719387 | Infra-red phosphors and fluorescent lamp containing the same | — | 1988-01-12 |