Felix Franck
25Patents
5h-index
17Co-inventors
66Inventor score
Filing activity: May 9, 1997 → Jan 21, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6475038B1 | Connector terminal | Electricity | 23 | Expired |
| US6137235A | Low-resistance bipolar bridge circuit | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6144568A | Circuit arrangement for operating electrical lamps | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6377107B1 | Fast turn-off circuit arrangement | Electricity | 6 | Expired |
| US5880564A | High-frequency operating circuit for a low-pressure discharge lamp with improved electromagnetic compatibility | Electricity | 5 | Expired |
| US6600667B2 | Electronic transformer | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6847174B2 | Drive for a half-bridge inverter | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6266259A | Half-bridge inverter | Electricity | 5 | Expired |
| US6272032A | Rectifier with midpoint feed | Electricity | 3 | Expired |
| US5939832A | Safety disconnection with asymmetric lamp power | Electricity | 3 | Expired |
| US6603674B2 | Electronic transformer with good immunity against high-voltage pulses | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6710474B2 | Circuit arrangement for switching on a partial circuit arrangement | Electricity | 1 | Expired |
| US8264159B2 | Circuit arrangement and method for operating at least one LED and at least one fluorescent lamp | Electricity | 1 | Active |
| US7394207B2 | Circuit arrangement having a full bridge with switching load relief for operating lamps | Electricity | 1 | Active |
| US7443106B2 | Circuit with switch-off device for the operation of light sources | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6172890A | Half bridge circuit drive without collector bias current peak | Electricity | 1 | Expired |
| US6777860B2 | Luminous element for lamp | Electricity | 1 | Expired |
| US8138682B2 | Symmetrical RF power supply for inductively coupled electrodeless lamps | Emerging Cross-Sectional Technologies | 1 | Active |
| US8596834B2 | Heatsink and illumination system with a heatsink | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US6778373B2 | Rectifier circuit suited to power factor correction | Emerging Cross-Sectional Technologies | 0 | Expired |
| US6486613B2 | Reducing the clamping voltage of operating devices for gas discharge lamps | Electricity | 0 | Expired |
| US11252802B2 | Circuit arrangement for a light source | Electricity | 0 | Active |
| US9392656B2 | Method of driving LED lighting sources and related device | Electricity | 0 | Active |
| US9521714B2 | Light source module, power supply unit for operating a light source module of this kind, and lighting system | General | 0 | Revoked |
| US9560702B2 | Light source module, power supply unit for operating a light source module of this kind, and lighting system | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.