Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10349484 | Solid state lighting devices with reduced melatonin suppression characteristics | Fan Zhang, Ryan Gresback, Antony Paul Van De Ven, Bernd Keller | 2019-07-09 |
| 8921875 | Recipient luminophoric mediums having narrow spectrum luminescent materials and related semiconductor light emitting devices and methods | Ronan P. LeToquin, Tao Tong | 2014-12-30 |
| 8692277 | Light emitting diodes including optically matched substrates | David B. Slater, Jr., Charles M. Swoboda, Bernd Keller, James Ibbetson, Brian Thibeault +1 more | 2014-04-08 |
| 8426881 | Light emitting diodes including two reflector layers | David B. Slater, Jr., Charles M. Swoboda, Bernd Keller, James Ibbetson, Brian Thibeault +1 more | 2013-04-23 |
| 7420222 | Light emitting diodes including transparent oxide layers | David B. Slater, Jr., Charles M. Swoboda, Bernd Keller, James Ibbetson, Brian Thibeault +1 more | 2008-09-02 |
| 7026659 | Light emitting diodes including pedestals | David B. Slater, Jr., Charles M. Swoboda, Bernd Keller, James Ibbetson, Brian Thibeault +1 more | 2006-04-11 |
| 6791119 | Light emitting diodes including modifications for light extraction | David B. Slater, Jr., Charles M. Swoboda, Bernd Keller, James Ibbetson, Brian Thibeault +1 more | 2004-09-14 |
| 6200917 | Colorless silicon carbide gemstones | Calvin H. Carter, Jr., Valeri F. Tsvetkov | 2001-03-13 |
| 6025289 | Colorless silicon carbide crystals | Calvin H. Carter, Jr., Valeri F. Tsvetkov | 2000-02-15 |
| 5718760 | Growth of colorless silicon carbide crystals | Calvin H. Carter, Jr., Valeri F. Tsvetkov | 1998-02-17 |
| 5667587 | Apparatus for growing silicon carbide crystals | Walter E. Gaida, Ronald R. Ronallo, Hudson M. Hobgood | 1997-09-16 |
| 5409859 | Method of forming platinum ohmic contact to p-type silicon carbide | John Williams Palmour, Robert F. Davis, Lisa S. Porter | 1995-04-25 |
| 5323022 | Platinum ohmic contact to p-type silicon carbide | John Williams Palmour, Robert F. Davis, Lisa S. Porter | 1994-06-21 |