David A. Pringle
2Patents
0Active
2Granted
22Portfolio score
Filing activity: Jun 7, 1991 → Jun 6, 1995
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5150012A | Low pressure xenon lamp and driver circuitry for use in theatrical productions and the like | Electricity | 5 | Expired |
| US6140778A | Low pressure xenon lamp and driver circuitry for use in theatrical productions and the like | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.