David A. Pringle
10Patents
5h-index
8Co-inventors
59Inventor score
Filing activity: Oct 25, 1985 → Mar 3, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4692607A | Controlled color light source | Physics | 7 | Expired |
| US4686612A | Lamp reflector assembly | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5982112A | Low pressure xenon lamp and driver circuitry for use in theatrical productions and the like | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5179399A | Theatre in the round projection apparatus and method | Physics | 5 | Expired |
| US5150012A | Low pressure xenon lamp and driver circuitry for use in theatrical productions and the like | Electricity | 5 | Expired |
| US4750097A | Lamp reflector assembly | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| USD652556S1 | Dome lighting assembly | General | 1 | Expired |
| US6140778A | Low pressure xenon lamp and driver circuitry for use in theatrical productions and the like | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7948184B2 | Vehicle testing lamp apparatus, system, and method | Physics | 0 | Active |
| US11554193B2 | Bioaerosol inactivator UVC antimicrobial reactor | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.