Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5336971 | Electrodeless low-pressure sodium vapor discharge lamp having a discharge vessel of improved construction | ROBERT JACOB PET | 1994-08-09 |
| 5077505 | Electric lamp and seal structure therefor | Tjepke Hendrik Ekkelboom | 1991-12-31 |