Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7977854 | Component for an electric lamp with outer bulb | Sascha Piltz | 2011-07-12 |
| 7745999 | Lamp which is closed on two sides | Jurgen Graf, Andreas Hohlfeld, Michael Hulsemann, Anton Schogl | 2010-06-29 |
| 7253562 | Lamp which is closed on two sides | Jurgen Graf, Andreas Hohlfeld, Michael Hulsemann, Anton Schlögl | 2007-08-07 |
| 7221098 | Electric lamp with outer bulb and associated support body | Jurgen Graf, Andreas Hohlfeld, Michael Hulsemann, Anton Schlögl | 2007-05-22 |
| 7112116 | Process for producing an electric lamp with outer bulb | Jurgen Graf, Andreas Hohlfeld, Michael Hulsemann, Anton Schlögl | 2006-09-26 |
| 6617790 | Metal halide lamp with ceramic discharge vessel | Uwe Fidler | 2003-09-09 |
| 5920400 | Method and device for determining the purity and/or pressure of gases for electric lamps | Hans Eisemann | 1999-07-06 |