Issued Patents All Time
Showing 26–50 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9462660 | Controlling an electronic dimming ballast during low temperature or low mercury conditions | Russell L. MacAdam, Matthew R. Zartman | 2016-10-04 |
| 9247608 | Load control device for a light-emitting diode light source | Jeffrey S. Hayes, Robert D. Stevens, Jr. | 2016-01-26 |
| 9232607 | Gas discharge lamp ballast with reconfigurable filament voltage | Jonathan Robert Quayle, Brent M. Gawyrs | 2016-01-05 |
| 9035563 | System and method for programming a configurable load control device | Matthew W. Nuhfer, Thomas M. Shearer | 2015-05-19 |
| 8878447 | Method and apparatus for measuring operating characteristics in a load control device | Jonathan Robert Quayle, Alexander J. Rovnan, Mark S. Taipale, Dragan Veskovic | 2014-11-04 |
| 8810159 | System and method for programming a configurable load control device | Matthew W. Nuhfer, Thomas M. Shearer, Ethan Charles Biery | 2014-08-19 |
| 8664888 | Power converter for a configurable light-emitting diode driver | Matthew W. Nuhfer, Thomas M. Shearer, Kartik Iyer | 2014-03-04 |
| 8629624 | Method and apparatus for measuring operating characteristics in a load control device | Jonathan Robert Quayle, Alexander J. Rovnan, Mark S. Taipale, Dragan Veskovic | 2014-01-14 |
| 8492988 | Configurable load control device for light-emitting diode light sources | Matthew W. Nuhfer, Thomas M. Shearer, Ethan Charles Biery, Kartik Iyer | 2013-07-23 |
| 8492987 | Load control device for a light-emitting diode light source | Matthew W. Nuhfer, Thomas M. Shearer, Kartik Iyer | 2013-07-23 |
| 8466628 | Closed-loop load control circuit having a wide output range | Thomas M. Shearer, Matthew W. Nuhfer, Kartik Iyer, Nicholas A. Hoerter, Mark S. Taipale | 2013-06-18 |
| 8384297 | Method of controlling an operating frequency of an electronic dimming ballast | Jonathan Robert Quayle | 2013-02-26 |
| 7983012 | Communication circuit for a digital electronic dimming ballast | Elik Dvorkin, Dragan Veskovic | 2011-07-19 |
| 7940015 | Thermal protection for lamp ballasts | Mark S. Taipale, Jonathan Robert Quayle, Thomas Richard Hinds | 2011-05-10 |
| 7911156 | Thermal foldback for a lamp control device | David E. Cottongim, Jecko Arakkal, Mark S. Taipale | 2011-03-22 |
| 7880405 | System and method for providing adjustable ballast factor | Russell L. MacAdam, Kenneth Dale Walma | 2011-02-01 |
| 7830093 | System and method for reducing flicker of compact gas discharge lamps at low lamp light output level | — | 2010-11-09 |
| 7825609 | Electronic ballast having a flyback cat-ear power supply | Mark S. Taipale, Dragan Veskovic | 2010-11-02 |
| 7764479 | Communication circuit for a digital electronic dimming ballast | Elik Dvorkin, Dragan Veskovic | 2010-07-27 |
| 7675250 | Thermal protection for lamp ballasts | Mark S. Taipale, Jonathan Robert Quayle, Thomas Richard Hinds | 2010-03-09 |
| 7528554 | Electronic ballast having a boost converter with an improved range of output power | Alexander J. Rovnan | 2009-05-05 |
| 7436131 | Thermal protection for lamp ballasts | David E. Cottingim, Jecko Arakkal, Mark S. Taipale | 2008-10-14 |
| 7432661 | Electronic ballast having a flyback cat-ear power supply | Mark S. Taipale, Dragan Veskovic | 2008-10-07 |
| 7321202 | System and method for reducing flicker of compact gas discharge lamps at low lamp light output level | — | 2008-01-22 |
| 7075254 | Lighting ballast having boost converter with on/off control and method of ballast operation | Brent M. Gawrys | 2006-07-11 |