Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4935667 | High-pressure sodium discharge lamp comprising a discharge arc shielding means | Andreas S. G. Geven | 1990-06-19 |
| 4621216 | High-pressure discharge lamp with shielded electrode | Johan Liebe, Andreas S. G. Geven, Jan R. deBie | 1986-11-04 |
| 4501799 | Composite body for gas discharge lamp | Eise B. Geertsema, Joris J. C. Oomen, Jan W. Rouwendal | 1985-02-26 |
| 4328445 | High-pressure discharge lamp | Roger J. Q. Van den Plas, Josephus M. Ruts | 1982-05-04 |
| 4253037 | High-pressure sodium-vapor discharge lamp | Cornelis A. J. Jacobs | 1981-02-24 |