Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4659318 | Method to introduce a fill gas mixture into an electric light bulb, particularly halogen incandescent lamp | Axel Bunk, Gottfried Eichelbronner, Karl-Heinz Stadler, Manfred Gaugel | 1987-04-21 |