Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8525409 | Efficient lamp with envelope having elliptical portions | Geza Zoltan Cseh, Ferenc Fazekas, Laszlo Balla, Bela Mezei | 2013-09-03 |
| 8188657 | Illuminating lamp and method of making same | Geza Zoltan Cseh, Ferenc Fazekas | 2012-05-29 |
| 7344285 | Electric lamp with heat resistant shade | Geza Zoltan Cseh | 2008-03-18 |