Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12017471 | Security feature and method for the detection thereof, and security or value document | Manfred Paeschke, Florian Peters, Roland HEISE, Guido HAUSSMANN, Andreas DEICHSEL +5 more | 2024-06-25 |
| 10312420 | Light-emitting device having surface-modified luminophores | Chung Hoon Lee, Walter Tews, Gundula Roth | 2019-06-04 |
| 10255515 | Method and device for checking a security element | Manfred Paeschke, Olga Kulikovska, Joerg Fischer | 2019-04-09 |
| 10109130 | Method and device for testing a security element of a security document | Lazar Kulikovsky, Manfred Paeschke, Jörg Fischer, Olga Kulikovska | 2018-10-23 |
| 9960324 | Light-emitting device having surface-modified luminophores | Chung Hoon Lee, Walter Tews, Gundula Roth | 2018-05-01 |
| 9670406 | Zinc sulphide phosphor having photo- and electroluminescent properties, process for producing same, and security document, security feature and method for detecting same | Manfred Paeschke, Sven Roesler, Jakob Kuen, Andreas DEICHSEL, Christian Kunath +1 more | 2017-06-06 |
| 9614129 | Light emitting device having surface-modified luminophores | Chung Hoon Lee, Walter Tews, Gundula Roth | 2017-04-04 |
| 9234129 | Surface-modified quantum dot luminophores | Chung Hoon Lee, Walter Tews, Gundula Roth | 2016-01-12 |
| 9196785 | Light emitting device having surface-modified quantum dot luminophores | Chung Hoon Lee, Walter Tews, Gundula Roth | 2015-11-24 |
| 8963173 | Light emitting device having strontium oxyorthosilicate type phosphors | Chung Hoon Lee, Walter Tews, Gundula Roth | 2015-02-24 |
| 8945421 | Surface-modified silicate luminophores | Chung Hoon Lee, Walter Tews, Gundula Roth | 2015-02-03 |
| 8703014 | Luminescent substances having Eu2+-doped silicate luminophores | Chung Hoon Lee, Walter Tews, Gundula Roth | 2014-04-22 |
| 8581286 | Light emitting device having surface-modified silicate luminophores | Chung Hoon Lee, Walter Tews, Gundula Roth | 2013-11-12 |
| 8551360 | Rare-earth doped alkaline-earth silicon nitride phosphor, method for producing and radiation converting device comprising such a phosphor | Cheng-Jun Duan, Hubertus Theresia Hitzen, Sylke Rösler, Sven Rösler, Anne Charlotte Antoinette Delsing | 2013-10-08 |
| 8535564 | Light emitting device employing luminescent substances with oxyorthosilicate luminophores | Chung Hoon Lee, Walter Tews, Gundula Roth | 2013-09-17 |
| 8440106 | Strontium oxyorthosilicate phosphors having improved stability under a radiation load and resistance to atmospheric humidity | Chung Hoon Lee, Walter Tews, Gundula Roth | 2013-05-14 |
| 8319417 | ABOS:M-based phosphors and light sources containing these phosphors | Cheng-Jun Duan, Theresia Hubertus Hintzen, Sylke Rösler | 2012-11-27 |
| 8173042 | Strontium oxyorthosilicate phosphors having improved stability under a radiation load and resistance to atmospheric humidity | Chung Hoon Lee, Walter Tews, Gundula Roth | 2012-05-08 |
| 8007683 | Carbidonitridosilicate luminescent substance | Sven Rösler, Sylke Rösler, Hubertus Thoresia Hintzen, Yuan Qiang Li | 2011-08-30 |
| 7855393 | Light emitting device with a non-activated luminescent material | Sven Rösler, Sylke Rösler, Wolfgang Kempfert, Peter Pachler, Stefan Tasch +2 more | 2010-12-21 |
| 7679101 | Light emitting device | Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler +3 more | 2010-03-16 |
| 7259396 | Light source with a light-emitting element | Stefan Tasch, Peter Pachler, Gundula Roth, Walter Tews, Wolfgang Kempfert | 2007-08-21 |
| 7252790 | Zinc sulfide electroluminophores and method for production thereof | Frank Kappe, Benedikt Ahlers, Arnim Franz-Burgholz, Hans-Jurgen Limburg, Monika Voh | 2007-08-07 |
| 7187011 | Light source with a light-emitting element | Stefan Tasch, Peter Pachler, Gundula Roth, Walter Tews, Wolfgang Kempfert | 2007-03-06 |
| 7157746 | Light emitting device having a divalent-europium-activated alkaline earth metal orthosilicate phosphor | Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler +3 more | 2007-01-02 |