Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5051655 | Electrodes for single ended arc discharge tubes | — | 1991-09-24 |
| D299547 | Partially frosted lamp | Wayne R. Hellman | 1989-01-24 |
| 4319796 | Compact lamp unit and socket | — | 1982-03-16 |
| 4320439 | Compact lamp unit and socket | — | 1982-03-16 |
| D261061 | Projection lamp reflector | — | 1981-09-29 |