Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5339228 | Escalator or moving walkway balustrade illumination | Frank Baethge, Ali Naghi | 1994-08-16 |
| 4853591 | Multiple-tube compact low-pressure discharge fluorescent lamp | Ernst Panofski, Roland Kastl | 1989-08-01 |
| 4830648 | Method of making a unitary tubular generally U-shaped discharge vessel, particularly for compact fluorescent lamps | Ernst Panofski | 1989-05-16 |
| 4801323 | Method of making a discharge vessel for compact low-pressure discharge lamps | Ernst Panofski, Gerd-Otto Eckstein, Hans Schmidt, Josef Plischke | 1989-01-31 |
| 4481442 | Low-pressure mercury vapor discharge lamp, particularly U-shaped fluorescent lamp, and method of its manufacture | Wolfgang Albrecht, Dieter Hofmann, Ernst Panofski | 1984-11-06 |
| 4393331 | High pressure mercury vapor discharge lamp with outer bulb | Alexander Dobrusskin, Gunter Woizan | 1983-07-12 |