Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6260986 | Electric lamp | Peter Helbig | 2001-07-17 |
| 5270610 | Vibration resistant lamp and base, and method of its manufacture | Walter Schoenherr | 1993-12-14 |
| 5229683 | Electric lamp with cementless base | Peter Helbig | 1993-07-20 |
| 5010272 | Cementless electric lamp - base combination | Peter Helbig, Walter Schoenherr | 1991-04-23 |
| 4795939 | Electric lamp bulb attachment arrangement | Peter Helbig, Walter Schonherr | 1989-01-03 |
| 4609977 | Incandescent lamp-base assembly, particularly for an automotive-type halogen incandescent lamp | Peter Helbig, Walter Schonherr | 1986-09-02 |
| 4489252 | Electric lamp | — | 1984-12-18 |
| 4295076 | Electric lamp with cementless attached base | Walter Schonherr | 1981-10-13 |