Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7178957 | Multiple-filament motor vehicle headlight lamp | Josef Andreas Schug, Helmut Tiesler-Wittig | 2007-02-20 |
| 6439739 | Incandescent lamp | — | 2002-08-27 |
IS
Ingolf Sischka
Overall (All Time): #2,154,595 of 4,157,543Top 55%
2
Patents All Time