Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6809347 | Light source comprising a light-emitting element | Stefan Tasch, Peter Pachler, Gundula Roth, Wolfgang Kempfert, Detlef Starick | 2004-10-26 |
| 6489716 | Compact, energy-saving lamp | Gundula Roth, Ina Fethke, Jens Klimke | 2002-12-03 |
| 6085971 | Luminescent meta-borate substances | Gundula Roth, Ina Fethke | 2000-07-11 |
| 4793944 | Crystalline lanthanum-oxy-halide phosphor activated with rare earths | Gerhard Herzog, Detlef Starick, Franz Braunholz, Aleksander M. Gurvic, Svetlana I. Golovkova +1 more | 1988-12-27 |