| 7564192 |
HID dimming method and apparatus |
George E. Kiefer |
2009-07-21 |
| 6784781 |
Reactor and ballast system |
George E. Kiefer |
2004-08-31 |
| 6664790 |
Automated diagnostic tester for HID lamp luminaires |
John Cook, George E. Keifer |
2003-12-16 |
| 6608451 |
Ballast circuit with an ignitor for starting multiple HID lamps |
— |
2003-08-19 |
| 6563255 |
Luminaire incorporating arc tube preheater |
— |
2003-05-13 |
| 6531833 |
Single ballast for powering at least one high intensity discharge lamp |
John Henry Backs |
2003-03-11 |
| 6513952 |
Socket mounting that allows lamp to remain vertical as fixture is tilted |
David Martin Johnson |
2003-02-04 |
| 6483257 |
Ignitor pulse variable reduction method and apparatus |
Larry R. Henderson |
2002-11-19 |
| 6457845 |
Luminaire incorporating containment in the event of non-passive failure of high intensity discharge lamp |
Chang Wei, Mao Chen |
2002-10-01 |
| 6369522 |
Metal halide lamp lumen depreciation improvement |
— |
2002-04-09 |
| 6348763 |
Fluorescent lamp luminaire system |
— |
2002-02-19 |
| 6342766 |
Power module for high intensity discharge lamp |
John Cook, Barton Kirk Ideker, Michael L. Fenger |
2002-01-29 |
| 6316885 |
Single ballast for powering high intensity discharge lamps |
Rebecca H. Lancaster |
2001-11-13 |
| 5986412 |
Single ballast for powering plural high intensity discharge lamps |
— |
1999-11-16 |
| 5909082 |
Starting aid for high intensity discharge lamps |
Lawrence W. Speaker |
1999-06-01 |
| 5898273 |
Metal halide lamp with pre-start arc tube heater |
George E. Kiefer |
1999-04-27 |
| 4916364 |
Parallel arranged starting circuit for gaseous discharge lamps |
— |
1990-04-10 |
| 4490778 |
Luminaire globe assembly |
William K. Dryman |
1984-12-25 |
| 4378514 |
Starting and operating circuit for gaseous discharge lamps |
— |
1983-03-29 |
