Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4801323 | Method of making a discharge vessel for compact low-pressure discharge lamps | Lutz Klein, Ernst Panofski, Gerd-Otto Eckstein, Hans Schmidt | 1989-01-31 |
| 4599536 | Single-ended low-pressure discharge lamp, such as fluorescent lamp, and method of its manufacture | Gerhard Steeger | 1986-07-08 |
| 4441050 | Single-ended low pressure discharge lamp and method of manufacture | Gerhard Steeger | 1984-04-03 |