Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5461281 | High-pressure discharge lamp with a halide fill including life-extending additives | Dietrich Fromm, Richard Ullmann | 1995-10-24 |
| 5363007 | Low-power, high-pressure discharge lamp, particularly for general service illumination use | Dietrich Fromm, Andreas Hohlfeld | 1994-11-08 |