Didier Leonard
14Patents
7h-index
13Co-inventors
63Inventor score
Filing activity: Dec 27, 1974 → May 19, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4893118A | Device for identification by proximity | Physics | 46 | Expired |
| US5519317A | Inductive proximity sensor for detecting ferrous and non-ferrous objects | Physics | 29 | Expired |
| US4879512A | Circuit for processing a pseudo-oscillatory signal, especially for inductive proximity detectors | Electricity | 12 | Expired |
| US5508662A | Variable frequency inductive proximity sensor | Physics | 10 | Expired |
| US4893076A | Proximity detector using inductive effect on oscillating circuit the charge of which is controlled by a pulse of short duration | Electricity | 10 | Expired |
| US4857913A | Coded objects identifiable by proximity and devices for changing the codes of these objects | Physics | 9 | Expired |
| US8378663B2 | Current measurement signal device with electrical isolation, electronic trip unit, and circuit breaker comprising one such device | Electricity | 7 | Active |
| US3956578A | Facsimile system for the transmission of picture | Electricity | 7 | Expired |
| US5345166A | Regulated voltage two-wire detector | Electricity | 5 | Expired |
| US8390270B2 | Measurement signal coupling device with electrical isolation and electrical equipment unit comprising one such device | Electricity | 4 | Active |
| US5068592A | Detector of the regulated voltage two wire type | Electricity | 4 | Expired |
| US7791855B2 | Voltage surge protection device and electronic circuit comprising one such a device | Electricity | 3 | Active |
| US7961486B2 | Capacitive power supply system | Emerging Cross-Sectional Technologies | 2 | Active |
| US8164874B2 | Overvoltage protection device for an electrical circuit | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.