Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6406930 | Fabrication of visible light emitting device formed from wide band gap semiconductor doped with a rare earth element | Ronald H. Birkhahn, Liang-Chiun Chao, Michael Garter, Andrew J. Steckl | 2002-06-18 |
| 6255669 | Visible light emitting device formed from wide band gap semiconductor doped with a rare earth element | Ronald H. Birkhahn, Liang-Chiun Chao, Michael Garter, Andrew J. Steckl | 2001-07-03 |