Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884007 | Low pressure arc discharge tube having increased voltage | Jakob Maya | 1989-11-28 |
| 4825125 | Discharge lamp having multiple constrictions | Jakob Maya, Robert Y. Pai | 1989-04-25 |