Issued Patents All Time
Showing 76–100 of 114 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8227758 | Device and method for determining the conversion power of conversion elements | Helmut Bechtel | 2012-07-24 |
| 8173230 | Fluorescent lamp having a UVB phosphor | Thomas Justel, Walter Mayr | 2012-05-08 |
| 8164250 | Light emitting device with improved conversion layer | Helmut Bechtel, Jorg Meyer | 2012-04-24 |
| 8159126 | Light emitting device with an improved CaAlSiN light converting material | Joerg Meyer, Walter Mayr, Wolfgang Busselt, Hans-Helmut Bechtel | 2012-04-17 |
| 8153025 | Red emitting luminescent materials | Walter Mayr, Joerg Meyer, Wolfgang Schnick, Cora Sieglinde Hecht, Florian Stadler | 2012-04-10 |
| 8147067 | Laser projection system based on a luminescent screen | Ulrich Weichmann, Gero Heusler | 2012-04-03 |
| 8120247 | Light emitting device with a plurality of uniform diameter ceramic spherical color converter elements | Hans-Helmut Bechtel | 2012-02-21 |
| 8113675 | Arrangement for emitting mixed light | Hans-Helmut Bechtel, Matthias Wendt | 2012-02-14 |
| 8038905 | Illumination system comprising a radiation source and a fluorescent material | Regina B. Mueller-Mach, Gerd O. Mueller, Jorge Meyer, Walter Mayr, Hans-Dieter Bausen | 2011-10-18 |
| 8040045 | Electroluminescent light source | Hans-Helmut Bechtel, Wolfgang Busselt, Joerg Meyer, Herbert Friedrich Boerner, Stefan Peter Grabowski | 2011-10-18 |
| 8035287 | Fluorescent lighting creating white light | Hans-Helmut Bechtel, Wolfgang Busselt | 2011-10-11 |
| 8012371 | Luminescent material | Thomas Juestel, Walter Mayr | 2011-09-06 |
| 7981321 | Illumination system comprising a yellow green-emitting luminescent material | Volker Bachmann | 2011-07-19 |
| 7982229 | Light emitting device with conversion structure | Hans-Helmut Bechtel, Wolfgang Busselt, Silvia Golsch, Thomas Justel | 2011-07-19 |
| 7952270 | Electroluminescent device | Hans-Helmut Bechtel, Wolfgang Busselt | 2011-05-31 |
| 7938983 | Illumination system comprising a radiation source and a fluorescent material | Regina B. Mueller-Mach, Gerd O. Mueller, Jorg Meyer, Walter Mayr, Hans-Dieter Bausen | 2011-05-10 |
| 7902564 | Multi-grain luminescent ceramics for light emitting devices | Regina B. Mueller-Mach, Gerd O. Mueller, Michael R. Krames, Hans-Helmut Bechtel | 2011-03-08 |
| 7901592 | Illumination system comprising a green-emitting ceramic luminescence converter | Volker Bachmann, Silvia Golsch, Wolfgang Busselt | 2011-03-08 |
| 7859185 | Light-emitting device | Hans-Helmut Bechtel, Wolfgang Busselt | 2010-12-28 |
| 7800123 | Electroluminescence device | Helmut Bechtel, Wolfgang Busselt | 2010-09-21 |
| 7753553 | Illumination system comprising color deficiency compensating luminescent material | Thomas Justel, Walter Mayr, Jorg Meyer | 2010-07-13 |
| 7700002 | Illumination system comprising a radiation source and fluorescent material | Thomas Justel, Henning Hoppe, Wolfgang Schnick, Walter Mayr | 2010-04-20 |
| 7671529 | Phosphor converted light emitting device | Gerd O. Mueller, Regina B. Mueller-Mach, Joerg Meyer, Detlef Uwe Wiechert | 2010-03-02 |
| 7642708 | Tri-color white light led lamp | Thomas Juestel, Walter Mayr, Gerd O. Muller, Regina Muller-Mach | 2010-01-05 |
| 7611641 | Illumination system comprising a radiation source and a fluorescent material | Thomas Justel, Henning Hoppe, Wolfgang Schnick | 2009-11-03 |