Kempfert; Wolfgang
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kempfert; Wolfgang.The latest application filed is for "alkaline earth metal silicate luminophores and method for improving the long term stability thereof".
- Kempfert; Wolfgang - Bad Liebenstein N/A DE
| Patent | Date |
|---|---|
| Alkaline earth metal silicate luminophores and method for improving the long term stability thereof Grant 8,815,120 - Kempfert , et al. August 26, 2 | 2014-08-26 |
| Alkaline Earth Metal Silicate Luminophores And Method For Improving The Long Term Stability Thereof App 20120193579 - Kempfert; Wolfgang ; et al. | 2012-08-02 |
| Light emitting device with a non-activated luminescent material Grant 7,855,393 - Rosler , et al. December 21, 2 | 2010-12-21 |
| Light emitting device Grant 7,679,101 - Ota , et al. March 16, 2 | 2010-03-16 |
| Light Emitting Device With A Non-activated Luminescent Material App 20090294788 - Rosler; Sven ; et al. | 2009-12-03 |
| Light source with a light-emitting element Grant 7,259,396 - Tasch , et al. August 21, 2 | 2007-08-21 |
| Light emitting device App 20070090383 - Ota; Koichi ; et al. | 2007-04-26 |
| Light source with a light-emitting element Grant 7,187,011 - Tasch , et al. March 6, 2 | 2007-03-06 |
| Light emitting device having a divalent-europium-activated alkaline earth metal orthosilicate phosphor Grant 7,157,746 - Ota , et al. January 2, 2 | 2007-01-02 |
| Light source with a light-emitting element App 20060267031 - Tasch; Stefan ; et al. | 2006-11-30 |
| Light emitting device Grant 7,138,660 - Ota , et al. November 21, 2 | 2006-11-21 |
| Light emitting device having phosphor of alkaline earth metal silicate Grant 6,943,380 - Ota , et al. September 13, 2 | 2005-09-13 |
| Light emitting device App 20050162069 - Ota, Koichi ; et al. | 2005-07-28 |
| Light source with a light-emitting element App 20050082574 - Tasch, Stefan ; et al. | 2005-04-21 |
| Light emitting device App 20050077532 - Ota, Koichi ; et al. | 2005-04-14 |
| Anti-stokes fluorescent compositions and methods of use Grant 6,841,092 - Paeschke , et al. January 11, 2 | 2005-01-11 |
| Light source comprising a light-emitting element Grant 6,809,347 - Tasch , et al. October 26, 2 | 2004-10-26 |
| Light source comprising a light-emitting element App 20040090174 - Tasch, Stefan ; et al. | 2004-05-13 |
| Light emitting device App 20040051111 - Ota, Koichi ; et al. | 2004-03-18 |
| Anti-stokes fluorescent compositions and methods of use App 20020130304 - Paeschke, Manfred ; et al. | 2002-09-19 |
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