Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7485243 | Luminescent material and light emitting diode using the same | Yuan Qiang Li | 2009-02-03 |
| 7351356 | Luminescent material, especially for LED application | Anne Charlotte Antoinette Delsing, Yuan Qiang Li | 2008-04-01 |
| 6682663 | Pigment with day-light fluorescence | Gilbert Botty, Jost W. H. van Krevel | 2004-01-27 |
| 6649946 | Light source using a yellow-to-red-emitting phosphor | Georg Bogner, Ir G. Botty, Bert Braune, Jost W. H. van Krevel, Guenter Waitl | 2003-11-18 |