Photonetics
31Patents
0Active
31Granted
36Portfolio score
Filing activity: Apr 16, 1987 → Jul 11, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5594744A | Singlemode laser source tunable in wavelength with a self-aligned external cavity | Electricity | 81 | Expired |
| US6529327B1 | Partly reflecting optical component and laser source incorporating such a component | Electricity | 48 | 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 |
| US6084695A | Optical fiber wavelength multiplexer and demutiplexer | Physics | 43 | Expired |
| US5028395A | Active chemical sensor with optical fiber and its production process | Physics | 41 | 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 |
| US4870269A | Optical-fiber detection device which involves testing for good performance | Physics | 36 | Expired |
| US5270791A | Fibre optic measuring device, rate gyro, stabilization system and magnetic field or current sensor | Physics | 35 | Expired |
| US4843233A | Device for detecting vibrations including a multimode optical fiber as sensitive element | Physics | 35 | Expired |
| US6249364A | Optical wave-guide wavelength multiplexer and demultiplexer | Physics | 34 | Expired |
| US5115677A | Methods and devices for determining the contact angle of a drop of liquid placed on a substrate | Physics | 33 | Expired |
| US5141316A | Optical-fiber measuring device, gyrometer, central navigation and stabilizing system | Physics | 33 | Expired |
| US4770047A | Optical fiber sensor | Physics | 32 | Expired |
| US5719674A | Process for measuring rotation speeds about several axes, and a multiplexed multi-axial gyrofiber allowing this measurement | Physics | 30 | Expired |
| US4994677A | Method for positioning an object relative to a plane and measuring length and apparatus for implementing same | Physics | 27 | Expired |
| US6252718A | Optical reflector and laser with external cavity incorporating such a reflector | Electricity | 25 | Expired |
| US4932782A | Channelled light spectrum analysis measurement method and device, more especially for measuring a low amplitude movement of a mobile surface, which may be representative of a variation of a physical magnitude convertible into such a movement | Physics | 25 | Expired |
| US5349439A | Opto-electronic measuring device with optical air wedge spectral analysis arrangement | Physics | 24 | Expired |
| US6339609B2 | Tunable laser source with a self-aligned external cavity and a retro-reflecting-dispersing device | Electricity | 14 | Expired |
| US6507597B1 | Multiwavelength source | Electricity | 10 | Expired |
| US6324193A | Continuously wavelength-tunable monomode laser source | Electricity | 9 | Expired |
| US6600767B1 | Free space laser with self-aligned fiber output | Electricity | 7 | Expired |
| US5894488A | Light source with stabilized broadband and associated optical fiber gyroscope | Electricity | 6 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.