Herve Lefevre
57Patents
21h-index
42Co-inventors
88Inventor score
Filing activity: Feb 21, 1980 → Apr 14, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4928005A | Multiple-point temperature sensor using optic fibers | Physics | 172 | Expired |
| US5594744A | Singlemode laser source tunable in wavelength with a self-aligned external cavity | Electricity | 81 | Expired |
| US4389090A | Fiber optic polarization controller | Emerging Cross-Sectional Technologies | 70 | Expired |
| US4410275A | Fiber optic rotation sensor | Physics | 52 | Expired |
| US5802085A | Singlemode laser source tunable in wavelength with a self-aligned external cavity | Electricity | 46 | Expired |
| US5886785A | Optical spectrum analyzer and process for analyzing the corresponding spectrum | Physics | 45 | Expired |
| US4615582A | Magneto-optic rotator for providing additive Faraday rotations in a loop of optical fiber | Physics | 44 | Expired |
| US5712704A | Appliance for measuring polarization mode dispersion and corresponding measuring process | Physics | 41 | Expired |
| US5181078A | Fiber optic measuring device, rate gyro, navigation and stabilization system, and current sensor | Physics | 36 | Expired |
| US5270791A | Fibre optic measuring device, rate gyro, stabilization system and magnetic field or current sensor | Physics | 35 | Expired |
| US6249364A | Optical wave-guide wavelength multiplexer and demultiplexer | Physics | 34 | Expired |
| US5141316A | Optical-fiber measuring device, gyrometer, central navigation and stabilizing system | Physics | 33 | Expired |
| US4705399A | Device for measuring a nonreciprocal phase shift produced in a closed-loop interferometer | Physics | 31 | Expired |
| US5719674A | Process for measuring rotation speeds about several axes, and a multiplexed multi-axial gyrofiber allowing this measurement | Physics | 30 | Expired |
| US4687330A | Fiber optic rotation sensor with extended dynamic range | Physics | 29 | Expired |
| US4733938A | Magneto-optic rotator | Physics | 29 | Expired |
| US4773759A | Interferometer with Kerr effect compensation | Physics | 28 | Expired |
| US4671658A | Fiber optic rotation sensor utilizing a magnetic shield and an optical isolator | Physics | 26 | Expired |
| US6252718A | Optical reflector and laser with external cavity incorporating such a reflector | Electricity | 25 | Expired |
| US4842409A | Monomode optical fiber ring interferometric device with semiconductor diode as light energy emission reception/amplification means | Physics | 25 | Expired |
| US4743115A | Method of coiling an optical fiber gyroscope and an optical fiber coil thus obtained | Physics | 22 | Expired |
| US4836645A | Device for the connection of optic fibers to an integrated optic circuit and method for making the said device | Physics | 20 | Expired |
| US4882716A | Optic fiber hydrophone and antenna associating a series of hydrophones | Physics | 17 | Expired |
| US4893931A | Method for the detection of polarization couplings in a birefringent optical system and application of this method to the assembling of the components of an optical system | Physics | 15 | Expired |
| US6339609B2 | Tunable laser source with a self-aligned external cavity and a retro-reflecting-dispersing device | Electricity | 14 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.