Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4678966 | Fluorescent lamp having two phosphor layers | — | 1987-07-07 |
| 4251569 | Method of coating arc discharge lamp electrode | Willy P. Schreurs | 1981-02-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4678966 | Fluorescent lamp having two phosphor layers | — | 1987-07-07 |
| 4251569 | Method of coating arc discharge lamp electrode | Willy P. Schreurs | 1981-02-17 |