| 11554193 |
Bioaerosol inactivator UVC antimicrobial reactor |
— |
2023-01-17 |
| D652556 |
Dome lighting assembly |
Ashot Nalbandyan |
2012-01-17 |
| 7948184 |
Vehicle testing lamp apparatus, system, and method |
David M. Heffelfinger, David McDonald, Ashot Nalbandyan |
2011-05-24 |
| 6140778 |
Low pressure xenon lamp and driver circuitry for use in theatrical productions and the like |
David McDonald, Zhong Yan, George C. Johnson |
2000-10-31 |
| 5982112 |
Low pressure xenon lamp and driver circuitry for use in theatrical productions and the like |
David McDonald, Zhong Yan, George C. Johnson |
1999-11-09 |
| 5179399 |
Theatre in the round projection apparatus and method |
— |
1993-01-12 |
| 5150012 |
Low pressure xenon lamp and driver circuitry for use in theatrical productions and the like |
David McDonald, Zhong Yan |
1992-09-22 |
| 4750097 |
Lamp reflector assembly |
Helen Gourley |
1988-06-07 |
| 4692607 |
Controlled color light source |
John LaBelle, Daniel B. McKenna |
1987-09-08 |
| 4686612 |
Lamp reflector assembly |
Helen Gourley |
1987-08-11 |