Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5925325 | Plasma unit | Steffen Berger, Johannes Messelhauser | 1999-07-20 |
| 4795939 | Electric lamp bulb attachment arrangement | Fritz Eckhardt, Peter Helbig | 1989-01-03 |
| 4789920 | Lamp and base assembly, particularly for association with an automotive head lamp reflector | Peter Helbig | 1988-12-06 |
| 4751421 | Lamp with cement-free base structure | Alfred Braun, Hermann Steiner | 1988-06-14 |
| 4609977 | Incandescent lamp-base assembly, particularly for an automotive-type halogen incandescent lamp | Fritz Eckhardt, Peter Helbig | 1986-09-02 |
| 4595859 | Halogen incandescent lamp and socket combination, particularly for direct assembly into a fixture with bayonet lock | Hermann Steiner, Peter Helbig | 1986-06-17 |
| 4492893 | Dual filament halogen cycle automotive-type incandescent lamp | Hermann Steiner | 1985-01-08 |
| 4479072 | Sealed-beam headlamp having seating abutment on the outside of concave reflector | Manfred Gaugel | 1984-10-23 |
| 4412273 | Halogen incandescent lamp with part metal, part plastic socket, particularly for automotive headlights | Peter Helbig, Hermann Steiner | 1983-10-25 |
| 4295076 | Electric lamp with cementless attached base | Fritz Eckhardt | 1981-10-13 |