Philippe Graindorge
19Patents
12h-index
22Co-inventors
74Inventor score
Filing activity: Sep 27, 1982 → Jun 29, 2000
Most-cited inventions
| 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 |
| US4547650A | Device for heating an annular surface zone of a threadlike object | Chemistry; Metallurgy | 47 | Expired |
| US5802085A | Singlemode laser source tunable in wavelength with a self-aligned external cavity | Electricity | 46 | Expired |
| US4705399A | Device for measuring a nonreciprocal phase shift produced in a closed-loop interferometer | Physics | 31 | Expired |
| US4994677A | Method for positioning an object relative to a plane and measuring length and apparatus for implementing same | Physics | 27 | 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 |
| US4743115A | Method of coiling an optical fiber gyroscope and an optical fiber coil thus obtained | Physics | 22 | Expired |
| US4536861A | Optical fibre hydrophone | Physics | 21 | Expired |
| US4509968A | Device for providing a drawn fiber-like object with a helical structure | Chemistry; Metallurgy | 15 | Expired |
| US4571080A | Michelson interferometer with a photorefractive mirror | Physics | 15 | Expired |
| US6507597B1 | Multiwavelength source | Electricity | 10 | Expired |
| US6324193A | Continuously wavelength-tunable monomode laser source | Electricity | 9 | Expired |
| US4907878A | Device for discriminating fluids having different refractive indices and device for measuring the voluminal fraction of at least one fluid of a current of non-mixible fluids incorporating the discrimination device | Physics | 9 | Expired |
| US4548631A | Process and device for manufacturing a fiber keeping a circular polarization | Chemistry; Metallurgy | 5 | Expired |
| US5470745A | Apparatus for controlling the methane fermentation of organic materials | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4542955A | Device for illuminating an electro-optical medium for recording holograms in real time | Physics | 4 | Expired |
| US6560249B1 | Laser source with integral filtering of the amplified spontaneous emission | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.