Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7238535 | Test cell for evaluating phosphor | Karen Ruth Brower, Roy Scott Chancellor, Will M. Hooke, Curtis Henry Kempton, Alan C. Thomas | 2007-07-03 |
| 7009346 | Driving an EL panel without DC bias | Mahyar Vahabzadeh, Robert A. Kimball | 2006-03-07 |
| 6528943 | EL lamp with increased phosphor density | David A. Hardinger, David G. Pires | 2003-03-04 |
| 6433476 | EL lamp with heater electrode | Walter J. Pacicrek, Christopher C. Shol | 2002-08-13 |
| 6111362 | Controlling color shift in EL phosphors | Charles I. Zovko, Edward L. Kinnally | 2000-08-29 |