Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4254449 | Task lighting system | Thomas A. Koenig | 1981-03-03 |
| 4200903 | Compact portable indirect lighting fixture with acoustical control | Thomas A. Koenig | 1980-04-29 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4254449 | Task lighting system | Thomas A. Koenig | 1981-03-03 |
| 4200903 | Compact portable indirect lighting fixture with acoustical control | Thomas A. Koenig | 1980-04-29 |