Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8227758 | Device and method for determining the conversion power of conversion elements | Peter Josef Schmidt | 2012-07-24 |
| 8164250 | Light emitting device with improved conversion layer | Peter Josef Schmidt, Jorg Meyer | 2012-04-24 |
| 7969089 | LED with improved light emission profile | Wolfgang Busselt, Georg Gartner, Eliav Itzhak, Joachim Opitz | 2011-06-28 |
| 7800123 | Electroluminescence device | Wolfgang Busselt, Peter Josef Schmidt | 2010-09-21 |
| 7750357 | LED with improved light emittance profile | Dietrich Bertram, Wolfgang Busselt, Horst Greiner | 2010-07-06 |
| 7642714 | Electroluminescent device with a transparent cathode | Wolfgang Busselt, Herbert Friedrich Borner, Dietrich Bertram | 2010-01-05 |
| 7591962 | Low-pressure mercury vapor discharge lamp comprising UV-A phosphor | Thomas Justel, Walter Mayr, Peter Josef Schmidt | 2009-09-22 |
| 7285909 | Electroluminescent device with a color filter | Dietrich Bertram | 2007-10-23 |
| 6753649 | Plasma picture screen with UV light reflecting front plate coating | Wolfgang Busselt, Harald Gläser, Claus Feldmann, Joachim Opitz, Detlef Uwe Wiechert | 2004-06-22 |
| 6654079 | Liquid crystal color display screen comprising a phosphor layer | Hans Nikol, Cornelis Reinder Ronda, Thomas Justel | 2003-11-25 |
| 6509685 | Plasma display screen comprising a red phosphor | Thomas Justel, Hans Nikol, Cornelis Reinder Ronda | 2003-01-21 |
| 6469434 | Zinc silicate luminescent materials and related luminescent screen products | Thomas Justel, Walter Mayr, Hans Nikol, Cornelis Reinder Ronda | 2002-10-22 |
| 5998047 | Aluminate phosphor with a polyphosphate coating | Wolfram Czarnojan, Walter Mayr, Thomas Justel, Hans Nikol, Cornelis Rhonda | 1999-12-07 |
| 5936340 | Display screen comprising an adhesive layer | Stefan Willi Julius Gruhlke, Markus Haase, Joachim Opitz | 1999-08-10 |
| 5879795 | Luminescent screen containing phosphor particles coated with MoO.sub.3 | Markus Haase, Wolfram Czarnojan, Joseph Lauter | 1999-03-09 |
| 5760542 | Color display device having short decay phosphors | Wolfram Czarnojan, Markus Haase | 1998-06-02 |
| 5739632 | Luminescent phosphor screen containing catena-polyphosphate | Markus Haase, Wolfram Czarnojan, Walter Mayr, Joseph Lauter | 1998-04-14 |
| 5684358 | Luminescent screen | Markus Haase, Wolfram Czarnojan, Dieter Wadow | 1997-11-04 |
| 5360361 | Method of manufacturing a display tube | Wolfram Czarnojan, Stefan Willi Julius Gruhlke, Ulrich Kynast | 1994-11-01 |