Werner Ludorf
7Patents
2h-index
5Co-inventors
40Inventor score
Filing activity: Jun 26, 2002 → Jun 6, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6747420B2 | Drive circuit for light-emitting diodes | Emerging Cross-Sectional Technologies | 101 | Expired |
| US8698421B2 | Dimmable LED power supply with power factor control | Emerging Cross-Sectional Technologies | 17 | Active |
| US8749157B2 | Method and apparatus for regulating the brightness of light-emitting diodes | Electricity | 2 | Active |
| US7057358B2 | Electronic ballast and operating method for a gas discharge lamp | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6747423B2 | Circuit configuration to operate a gas discharge lamp | Electricity | 0 | Expired |
| US9300215B2 | Dimmable LED power supply with power factor control | Emerging Cross-Sectional Technologies | 0 | Active |
| US9066387B2 | Method and apparatus for regulating the brightness of light-emitting diodes | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.