Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7728528 | Electronic ballast with preheating and dimming control | Cho Sing Chan | 2010-06-01 |
| 6177769 | Electric Ballast with selective power dissipation | Ming Liang Wu, Donald Huvaere, Peter W. Shackle | 2001-01-23 |
| 6023132 | Electronic ballast deriving auxilliary power from lamp output | Kent E. Crouse, Peter W. Shackle, Patrick J. Keegan | 2000-02-08 |
| 5982113 | Electronic ballast producing voltage having trapezoidal envelope for instant start lamps | Kent E. Crouse, Peter W. Shackle, Patrick J. Keegan | 1999-11-09 |
| 5973455 | Electronic ballast with filament cut-out | Grigoriy Mirskiy, William L. Keith, Kent E. Crouse, Peter W. Shackle, Patrick J. Keegan | 1999-10-26 |
| 5936357 | Electronic ballast that manages switching frequencies for extrinsic purposes | Kent E. Crouse, Patrick J. Keegan | 1999-08-10 |
| 5925990 | Microprocessor controlled electronic ballast | Kent E. Crouse, Michael W. Bandel, Patrick J. Keegan, Boyko Boykov, Peter W. Shackle +1 more | 1999-07-20 |
| 5747941 | Electronic ballast that monitors direct current through lamp filaments | Peter W. Shackle, Randy G. Russell, Kent E. Crouse | 1998-05-05 |
| 5539281 | Externally dimmable electronic ballast | Peter W. Shackle, Randy G. Russell, Kent E. Crouse | 1996-07-23 |
| 5500576 | Low height ballast for fluorescent lamps | Randy G. Russell, Kent E. Crouse, Peter W. Shackle | 1996-03-19 |
| 5493180 | Lamp protective, electronic ballast | Randy G. Russell, Peter W. Shackle | 1996-02-20 |
| 5396155 | Self-dimming electronic ballast | Peter W. Shackle, Randy G. Russell, Kent E. Crouse | 1995-03-07 |