Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6043603 | Low-pressure discharge lamp having an angularly oriented support member bearing a mercury-containing coating and a getter coating | — | 2000-03-28 |
| 5825127 | Method for producing a cap band for discharge lamps | — | 1998-10-20 |
| 5729081 | Electrode coil for discharge lamps and method for producing such an electrode coil | Roland Hoffmann | 1998-03-17 |
| 5614784 | Discharge lamp, particularly cold-start fluorescent lamp, and method of its manufacture | Christian Harzig, Roland Hoffmann | 1997-03-25 |
| 5006755 | Mercury discharge lamp with mercury containing capsule | Horst Wittmann, Michael Dietrich | 1991-04-09 |
| 4506187 | Lamp filament structure, and method of its manufacture | Dieter Hofmann | 1985-03-19 |