Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8998455 | Method of manufacturing a part of a color ring and a part of a color ring | Ulrich Weichmann, Yuri Aksenov, Johannes Baier, Jan Renier Marie Hochstenbach, Uwe Mackens +1 more | 2015-04-07 |
| 8999039 | Oxygen separation membrane | Rainer Hilbig | 2015-04-07 |
| 8651723 | LED light source with a luminescent layer | Thomas Juestel, Jacqueline Merikhi, Henning Ohland, Harald Josef Günther Radermacher, Detlef Uwe Wiechert | 2014-02-18 |
| 8128253 | Light emitting floor surface | Stefan Peter Grabowski | 2012-03-06 |
| 7969089 | LED with improved light emission profile | Helmut Bechtel, Wolfgang Busselt, Georg Gartner, Eliav Itzhak | 2011-06-28 |
| 7495386 | Electroluminescent device with improved light output | Hans-Helmut Bechtel, Wolfgang Busselt, Markus Klein, Dietrich Bertram, Harald Gläser | 2009-02-24 |
| 7262551 | Electroluminescent device with improved light output | Hans-Helmut Bechtel, Wolfgang Busselt, Markus Klein, Dietrich Bertram, Harald Gläser | 2007-08-28 |
| 7083490 | Light-emitting devices utilizing nanoparticles | Gerd O. Mueller, Regina B. Mueller-Mach, Dietrich Bertram, Thomas Juestel, Peter Josef Schmidt | 2006-08-01 |
| 6873091 | Organic electroluminescent display device comprising an optical filter | Hans-Helmut Bechtel, Markus Klein, Henricus Franciscus Johannus Jacobus Van Tongeren | 2005-03-29 |
| 6870311 | Light-emitting devices utilizing nanoparticles | Gerd O. Mueller, Regina B. Mueller-Mach, Dietrich Bertram, Thomas Juestel, Peter Josef Schmidt | 2005-03-22 |
| 6841937 | Colored electric lamp with a colored pigment-containing coating | Sonja Louisa Leona Ceulemans | 2005-01-11 |
| 6756727 | Color picture screen with color filter | Hans-Helmut Bechtel, Harald Gläser | 2004-06-29 |
| 6753649 | Plasma picture screen with UV light reflecting front plate coating | Helmut Bechtel, Wolfgang Busselt, Harald Gläser, Claus Feldmann, Detlef Uwe Wiechert | 2004-06-22 |
| 6750610 | Plasma display with enhanced contrast and protective layer | Hans-Helmut Bechtel, Wolfgang Busselt, Harald Glaeser | 2004-06-15 |
| 6700324 | Plasma picture screen with improved white color point | Hans-Helmut Bechtel, Wolfgang Busselt, Harald Glaeser, Thomas Juestel, Volker Van Elsbergen | 2004-03-02 |
| 6573654 | Plasma picture sceen with a terbium(III)-activated phosphor | Thomas Juestel, Hans-Helmut Bechtel | 2003-06-03 |
| 6520664 | Pigment coated lamp and luminaire emitting colored light | Thomas Amrein, Stefan Willi Julius Gruhlke | 2003-02-18 |
| 6517741 | Color display screen with color pigment | Claus Feldmann | 2003-02-11 |
| 6013979 | Phosphor composition with a coating of colloidal SiO.sub.2 particles and an oxygen compound of magnesium, calcium, barium, zinc, or aluminum | Friederike Picht, Michael Bredol, Frans Vollebregt | 2000-01-11 |
| 6010779 | Phosphor composition comprising fine-grain and coarse-grain SiO.sub.2 particles | Friederike Picht, Jacqueline Merikhi, Hans-Otto Jungk, Jan W. G. de Bakker, Miguel Boutelje +2 more | 2000-01-04 |
| 5936340 | Display screen comprising an adhesive layer | Helmut Bechtel, Stefan Willi Julius Gruhlke, Markus Haase | 1999-08-10 |
| 5884560 | Printing form for a rotary relief-printing method | Ralf Raue, Jurgen Reck, Christoph Hars, Joachim Sonnenschein | 1999-03-23 |
| 5744233 | Method of coating luminescent powders, luminescent powders and coated object | Walter Mayr | 1998-04-28 |
| 5362472 | Method of manufacturing aqueous ceramic suspensions and the use of said suspensions | Josef Lauter, Walter Mayr, Gerd Romanowski | 1994-11-08 |
| 4747863 | Method of manufacturing glass bodies | Rolf Clasen | 1988-05-31 |