| 9285081 |
LED high bay lighting source |
David Douglas |
2016-03-15 |
| 9022608 |
Unlit LED circuit bypass element with system and method therefor |
Ted Huff |
2015-05-05 |
| 8890419 |
System and method providing LED emulation of incandescent bulb brightness and color response to varying power input and dimmer circuit therefor |
— |
2014-11-18 |
| 8354800 |
Lighting source with low total harmonic distortion |
— |
2013-01-15 |
| 8008865 |
Multiple failure detection shutdown protection circuit for an electronic ballast |
— |
2011-08-30 |
| 7862195 |
Multiple positioned light source to achieve uniform or graded illumination |
David Douglas, Samuel Lee |
2011-01-04 |
| 7598677 |
Multiple failure detection shutdown protection circuit for an electronic ballast |
— |
2009-10-06 |
| 7405522 |
Multiple failure detection shutdown protection circuit for an electronic ballast |
— |
2008-07-29 |
| 5307057 |
Fiber optic display system utilizing a dual light source |
Kenneth J. Cook, Jeffry B. Stout, Donald J. Davis, Anwar Bawadekji |
1994-04-26 |
| 4894588 |
High efficiency flasher |
— |
1990-01-16 |
| 4471280 |
Anti-log power amplifier for reversible D.C. motor in automotive steering controls |
— |
1984-09-11 |