Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7911156 | Thermal foldback for a lamp control device | David E. Cottongim, Venkatesh Chitta, Mark S. Taipale | 2011-03-22 |
| 7843139 | Apparatus and method for controlling the filament voltage in an electronic dimming ballast | Brent M. Gawrys, Mark S. Taipale, Dragan Veskovic, Mark C. Fischer | 2010-11-30 |
| 7586268 | Apparatus and method for controlling the filament voltage in an electronic dimming ballast | Brent M. Gawrys, Mark S. Taipale, Dragan Veskovic, Mark C. Fischer | 2009-09-08 |
| 7436131 | Thermal protection for lamp ballasts | David E. Cottingim, Venkatesh Chitta, Mark S. Taipale | 2008-10-14 |
| 6982528 | Thermal protection for lamp ballasts | David E. Cottongim, Venkatesh Chitta, Mark S. Taipale | 2006-01-03 |
| 6642669 | Electronic dimming ballast for compact fluorescent lamps | Russell L. MacAdam, Andrew Ryan Offenbacher | 2003-11-04 |