Assignee
FRANCE ETAT
FR·404 granted patents·2 pending applications·9,386 citations·filing 1965–2019
Top patents by PatentIndex Score
406 records- 0197US4009574ACompression-ignition internal combustion enginesFRANCE ETAT·Filed 1975·Granted Mar 1, 1977·57 cites·10 claims
- 0296US4908579ASwitched capacitor sampling filterFRANCE ETAT·Filed 1988·Granted Mar 13, 1990·115 cites·9 claims
- 0395US4287337ASpiropyran compounds of piperidine or thiazine ringsFRANCE ETAT·Filed 1979·Granted Sep 1, 1981·87 cites·6 claims
- 0495US4135108AQuartz resonator with electrodes that do not adhere to the crystalFRANCE ETAT·Filed 1977·Granted Jan 16, 1979·53 cites·33 claims
- 0594US5197061ADevice for the transmission of digital data with at least two levels of protection and corresponding reception deviceFRANCE ETAT·Filed 1991·Granted Mar 23, 1993·339 cites·14 claims
- 0694US4385393AAdaptive prediction differential PCM-type transmission apparatus and process with shaping of the quantization noiseFRANCE ETAT·Filed 1981·Granted May 24, 1983·148 cites·4 claims
- 0793US4980764AMethod for the encoding of data for assistance in the reconstruction of a sub-sampled moving electronic imageFRANCE ETAT·Filed 1989·Granted Dec 25, 1990·160 cites·9 claims
- 0893US4361848ASystem for digitally transmitting and displaying data on television receiver screenFRANCE ETAT·Filed 1979·Granted Nov 30, 1982·180 cites·3 claims
- 0993US3996748ASupercharged internal combustion enginesFRANCE ETAT·Filed 1975·Granted Dec 14, 1976·40 cites·16 claims
- 1092US4884139AMethod of digital sound broadcasting in television channels with spectrum interlacingFRANCE ETAT·Filed 1987·Granted Nov 28, 1989·138 cites·8 claims
- 1192US4353305AKinetic-energy projectileFRANCE ETAT·Filed 1979·Granted Oct 12, 1982·57 cites·5 claims
- 1291US5170427AAudio and video communications terminal with improved adjustmentsFRANCE ETAT·Filed 1990·Granted Dec 8, 1992·145 cites·11 claims
- 1391US4956838AEcho cancelling device with frequency sub-band filteringFRANCE ETAT·Filed 1989·Granted Sep 11, 1990·119 cites·9 claims
- 1491US4317059AAcceleration and temperature compensated piezoelectric bi-resonatorFRANCE ETAT·Filed 1979·Granted Feb 23, 1982·35 cites·2 claims
- 1590US4357401AMacromolecular material of ionic conductionFRANCE ETAT·Filed 1981·Granted Nov 2, 1982·90 cites·9 claims
- 1689US4956768AWideband server, in particular for transmitting music or imagesFRANCE ETAT·Filed 1988·Granted Sep 11, 1990·261 cites·14 claims
- 1789US4614972ATeletext receiverFRANCE ETAT·Filed 1984·Granted Sep 30, 1986·106 cites·1 claims
- 1889US4171908AAutomatic two wavelength photoelasticimeterFRANCE ETAT·Filed 1977·Granted Oct 23, 1979·48 cites·5 claims
- 1988US4937125ALightweight sandwich designed for making multilayer structures resistant to impact and thermal aggressionsFRANCE ETAT·Filed 1988·Granted Jun 26, 1990·140 cites·22 claims
- 2088US4697521AMethod for opaquing visible and infrared radiance and smoke-producing ammunition which implements this methodFRANCE ETAT·Filed 1983·Granted Oct 6, 1987·43 cites·12 claims
- 2188US4566921APriming composition which is sensitive to percussion and a method for preparing itFRANCE ETAT·Filed 1985·Granted Jan 28, 1986·45 cites·10 claims
- 2287US5130793AReconfigurable multiple-point wired in-house network for simultaneous and/or alternative distribution of several types of signals, notably baseband images, and method for the configuration of a system such as thisFRANCE ETAT·Filed 1989·Granted Jul 14, 1992·134 cites·19 claims
- 2387US5071220AJoint closure module and box for optical fiber cablesFRANCE ETAT·Filed 1990·Granted Dec 10, 1991·144 cites·18 claims
- 2487US4767174AProcess and device for connecting an optical fibre and an integrated optical component comprising a wave guideFRANCE ETAT·Filed 1987·Granted Aug 30, 1988·67 cites·12 claims
- 2587US4334168AHigh frequency, thermostatically self controlled oscillatorFRANCE ETAT·Filed 1980·Granted Jun 8, 1982·33 cites·21 claims
- 2686US6335856B1Triboelectric deviceFRANCE ETAT·Filed 1999·Granted Jan 1, 2002·84 cites·22 claims
- 2786US4496975AOne-way data transmission systemsFRANCE ETAT·Filed 1982·Granted Jan 29, 1985·116 cites·2 claims
- 2886US4184048ASystem of audioconference by telephone link upFRANCE ETAT·Filed 1978·Granted Jan 15, 1980·84 cites·3 claims
- 2985US5108051ADeployment mechanism of a projectile finFRANCE ETAT·Filed 1988·Granted Apr 28, 1992·51 cites·19 claims
- 3084US4922946ARemote inflation and deflation system and valve thereforFRANCE ETAT·Filed 1988·Granted May 8, 1990·65 cites·6 claims
- 3184US4354432AHot-wire ignition initiator for propellant chargesFRANCE ETAT·Filed 1979·Granted Oct 19, 1982·45 cites·11 claims
- 3283US5804045ACathode for reduction of carbon dioxide and method for manufacturing such a cathodeFRANCE ETAT·Filed 1997·Granted Sep 8, 1998·70 cites·12 claims
- 3383US5089818AMethod of transmitting or storing sound signals in digital form through predictive and adaptive coding and installation thereforeFRANCE ETAT·Filed 1990·Granted Feb 18, 1992·128 cites·11 claims
- 3483US4922263APlate antenna with double crossed polarizationsFRANCE ETAT·Filed 1989·Granted May 1, 1990·67 cites·13 claims
- 3583US4677399AWide band directional coupler for microstrip linesFRANCE ETAT·Filed 1986·Granted Jun 30, 1987·49 cites·8 claims
- 3683US4613216ADevice for observation through a wall in two opposite directionsFRANCE ETAT·Filed 1985·Granted Sep 23, 1986·70 cites·17 claims
- 3783US4056098ARespiratory apparatus for free underwater diverFRANCE ETAT·Filed 1976·Granted Nov 1, 1977·59 cites·8 claims
- 3882US5255005ADual layer resonant quadrifilar helix antennaFRANCE ETAT·Filed 1990·Granted Oct 19, 1993·100 cites·15 claims
- 3982US4937667AMethod and apparatus for processing picture signals having interlaced field scanningFRANCE ETAT·Filed 1989·Granted Jun 26, 1990·47 cites·18 claims
- 4082US4287582APiezo transducers with mechanical amplification for very low frequencies, and acoustic antennasFRANCE ETAT·Filed 1979·Granted Sep 1, 1981·34 cites·9 claims
- 4182US3954041AMilitary observation post such as a gun turretFRANCE ETAT·Filed 1974·Granted May 4, 1976·42 cites·9 claims
- 4281US4933932ABuffer queue write pointer control circuit notably for self-channelling packet time-division switching systemFRANCE ETAT·Filed 1988·Granted Jun 12, 1990·68 cites·10 claims
- 4381US4602608ASupply apparatus for a semi-automatic compressed gas device which fires projectilesFRANCE ETAT·Filed 1984·Granted Jul 29, 1986·44 cites·7 claims
- 4481US4233815AMethods of supercharging a diesel engine, in supercharged diesel engines, and in supercharging units for diesel enginesFRANCE ETAT·Filed 1978·Granted Nov 18, 1980·40 cites·11 claims
- 4581US3962982AFairings for cables for the towing of an immersed bodyFRANCE ETAT·Filed 1975·Granted Jun 15, 1976·42 cites·13 claims
- 4680US4933762AMethod and coding and decoding devices for picture transmission through a variable rate networkFRANCE ETAT·Filed 1988·Granted Jun 12, 1990·40 cites·10 claims
- 4780US4023409ADevice for measurement of the speed of a helicopterFRANCE ETAT·Filed 1975·Granted May 17, 1977·25 cites·10 claims
- 4879US5031038AProcess and device for the compression of image data by mathematical transformation effected at low cost, particularly for the transmission at a reduced rate of sequences of imagesFRANCE ETAT·Filed 1990·Granted Jul 9, 1991·54 cites·10 claims
- 4979US4944244AApparatus for the production of preforms for optical fibersFRANCE ETAT·Filed 1989·Granted Jul 31, 1990·34 cites·15 claims
- 5079US4884264AHybrid time multiplex switching system with optimized buffer memoryFRANCE ETAT·Filed 1988·Granted Nov 28, 1989·84 cites·9 claims
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