Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4743802 | Tungsten halogen incandescent lamp with arc preventing fill | Roger A. Hume | 1988-05-10 |
| 4532455 | Tungsten halogen incandescent lamps containing mixed halogens | Paul V. Crawshaw | 1985-07-30 |