Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8906262 | Metal silicate halide phosphors and LED lighting devices using the same | Yongchi Tian, Sawsan Aziz, Olga Zakharov, Alison Sides | 2014-12-09 |
| 8242525 | Silicate-based phosphors and LED lighting devices using the same | Yongchi Tian, Olga Zakharov, Alison Sides, Alan C. Thomas | 2012-08-14 |
| 7427366 | Efficient, green-emitting phosphors, and combinations with red-emitting phosphors | Yongchi Tian, Gerard Frederickson, Liyou Yang | 2008-09-23 |
| 7368179 | Methods and devices using high efficiency alkaline earth metal thiogallate-based phosphors | Yongchi Tian, Diane Zaremba | 2008-05-06 |
| 7125501 | High efficiency alkaline earth metal thiogallate-based phosphors | Yongchi Tian, Diane Zaremba | 2006-10-24 |
| 7018565 | Efficient, size-selected green-emitting phosphors | Yongchi Tian, Diane Zaremba | 2006-03-28 |
| 6873460 | Retractable rear projection display | Herschel Clement Burstyn, Leon Shapiro | 2005-03-29 |
| 6544438 | Preparation of high emission efficiency alkaline earth metal thiogallate phosphors | Diane Zaremba | 2003-04-08 |
| 6419854 | Long persistence red phosphors and method of making | Diane Zaremba | 2002-07-16 |
| 6379584 | Long persistence alkaline earth sulfide phosphors | Diane Zaremba | 2002-04-30 |
| 6346326 | Coated moisture impervious red phosphors | — | 2002-02-12 |
| 6099754 | Long persistence red phosphors | — | 2000-08-08 |
| 4725344 | Method of making electroluminescent phosphor films | James Kane, William E. Harty | 1988-02-16 |