Assignee
GAZ DE FRANCE
FR·129 granted patents·2 pending applications·2,833 citations·filing 1973–2008
Top patents by PatentIndex Score
131 records- 0194US4752213AForced-air gas burnerGAZ DE FRANCE·Filed 1986·Granted Jun 21, 1988·130 cites·13 claims
- 0289US6145544AFlow conditioner for a gas transport pipeGAZ DE FRANCE·Filed 1999·Granted Nov 14, 2000·105 cites·15 claims
- 0389US4883753AHigh-yield methane production process by culture of Methanobacterium thermoautotrophicum or any other methanogenic bacterium having the same physiological growth propertiesGAZ DE FRANCE·Filed 1987·Granted Nov 28, 1989·62 cites·4 claims
- 0489US4518346AGas fuel burner with incorporated ignition and safety devicesGAZ DE FRANCE·Filed 1984·Granted May 21, 1985·68 cites·11 claims
- 0587US5943881ACooling process and installation, in particular for the liquefaction of natural gasGAZ DE FRANCE·Filed 1997·Granted Aug 31, 1999·63 cites·35 claims
- 0687US3948316AProcess of and device for using the energy given off by a heat sourceGAZ DE FRANCE·Filed 1974·Granted Apr 6, 1976·93 cites·9 claims
- 0785US5307437AOptical fibre incorporating a Bragg lattice and its applicationGAZ DE FRANCE·Filed 1992·Granted Apr 26, 1994·93 cites·8 claims
- 0884US5957539AProcess for excavating a cavity in a thin salt layerGAZ DE FRANCE·Filed 1997·Granted Sep 28, 1999·87 cites·9 claims
- 0984US5271215ANatural gas stream turbine system operating with a semi-open cycleGAZ DE FRANCE·Filed 1992·Granted Dec 21, 1993·68 cites·13 claims
- 1083US5058437ADetermining the quantity yield of a compressible fluid flowing through a pressure reducing valveGAZ DE FRANCE·Filed 1989·Granted Oct 22, 1991·74 cites·8 claims
- 1182US6509567B2Method and apparatus for detecting gasesGAZ DE FRANCE·Filed 2001·Granted Jan 21, 2003·39 cites·20 claims
- 1281US7325559B2Method for connecting a branch pipe to a main pipeline and underground network for distributing fluidGAZ DE FRANCE·Filed 2005·Granted Feb 5, 2008·18 cites·8 claims
- 1381US7083123B2Internal flame gas burner with high compactnessGAZ DE FRANCE·Filed 2003·Granted Aug 1, 2006·37 cites·12 claims
- 1481US5771845AVaporization method deviceGAZ DE FRANCE·Filed 1995·Granted Jun 30, 1998·55 cites·21 claims
- 1580US5989015AVariable flame retention device utilizing an interwoven flexible wire metal gauzeGAZ DE FRANCE·Filed 1997·Granted Nov 23, 1999·50 cites·13 claims
- 1679US7370675B2Flow conditioner for a fluid transport pipeGAZ DE FRANCE·Filed 2005·Granted May 13, 2008·26 cites·13 claims
- 1779US5613373AProcess and apparatus for cooling a fluid especially for liquifying natural gasGAZ DE FRANCE·Filed 1996·Granted Mar 25, 1997·36 cites·40 claims
- 1878US5182440AProcess and connection component using an electrical resistor for the welding of plastic elementsGAZ DE FRANCE·Filed 1990·Granted Jan 26, 1993·47 cites·13 claims
- 1977US5410131AWelding connection assembly for heat-fusing plastic tubesGAZ DE FRANCE·Filed 1993·Granted Apr 25, 1995·44 cites·11 claims
- 2077US5141580AConnection component for together plastic elements by thermal weldingGAZ DE FRANCE·Filed 1990·Granted Aug 25, 1992·45 cites·8 claims
- 2177US4952743AProcess and apparatus for the conversion of hydrocarbonsGAZ DE FRANCE·Filed 1988·Granted Aug 28, 1990·32 cites·16 claims
- 2275US5178210AVapor pump employing counterflow exchange between air and combustion products without an intermediate fluidGAZ DE FRANCE·Filed 1990·Granted Jan 12, 1993·48 cites·17 claims
- 2374US7561928B2Method for the automatic optimization of a natural gas transport networkGAZ DE FRANCE·Filed 2007·Granted Jul 14, 2009·17 cites·12 claims
- 2474US6199434B1Compact device for metering gas at variable pressureGAZ DE FRANCE·Filed 1998·Granted Mar 13, 2001·46 cites·28 claims
- 2574US6082994AGas burner for cooking apparatusGAZ DE FRANCE·Filed 1999·Granted Jul 4, 2000·39 cites·11 claims
- 2674US5388984AMethod of continuous modulation of a fluid flow rate by means of an electrically controlled sequential valveGAZ DE FRANCE·Filed 1992·Granted Feb 14, 1995·43 cites·12 claims
- 2773US4498304AStorage tank for cryogenic liquefied gasGAZ DE FRANCE·Filed 1983·Granted Feb 12, 1985·30 cites·7 claims
- 2872US5620625AMethod of butt-welding two plastic parts with an identifying code, using an automatically controlled electro-welding machineGAZ DE FRANCE·Filed 1993·Granted Apr 15, 1997·48 cites·12 claims
- 2972US4640458AMethod of producing hot air and hot water for sanitary purposes and apparatus for carrying out the said methodGAZ DE FRANCE·Filed 1985·Granted Feb 3, 1987·36 cites·5 claims
- 3070US6374844B1Method in operating a cavern for gasGAZ DE FRANCE·Filed 2000·Granted Apr 23, 2002·19 cites·6 claims
- 3170US5535594AProcess and apparatus for cooling a fluid especially for liquifying natural gasGAZ DE FRANCE·Filed 1994·Granted Jul 16, 1996·24 cites·44 claims
- 3270US4713158ASystem for applied current cathodic protection of a structureGAZ DE FRANCE·Filed 1986·Granted Dec 15, 1987·28 cites·8 claims
- 3369US4833112AThioresistant catalyst for methane productionGAZ DE FRANCE·Filed 1988·Granted May 23, 1989·10 cites·2 claims
- 3468US6434776B1Tube scraping deviceGAZ DE FRANCE·Filed 2000·Granted Aug 20, 2002·20 cites·10 claims
- 3567US6410878B1Method for producing a flame supportGAZ DE FRANCE·Filed 2000·Granted Jun 25, 2002·15 cites·3 claims
- 3667US4963290ACorrosion inhibitors of steels and aqueous compositions of alkali meal halide containing themGAZ DE FRANCE·Filed 1989·Granted Oct 16, 1990·27 cites·18 claims
- 3766US7252459B2Method and device for positioning a branch connection on a pipelineGAZ DE FRANCE·Filed 2005·Granted Aug 7, 2007·7 cites·19 claims
- 3866US4744123ADevice for scraping the outer surface of a tubeGAZ DE FRANCE·Filed 1986·Granted May 17, 1988·31 cites·5 claims
- 3965US6157455AMethod and apparatus for determining the calorific value of a natural gas optically and in real timeGAZ DE FRANCE·Filed 1998·Granted Dec 5, 2000·41 cites·19 claims
- 4064US5573728ADevice for selective detection of gasGAZ DE FRANCE·Filed 1993·Granted Nov 12, 1996·39 cites·17 claims
- 4164US5280172AFiber optic sensor for measuring gasGAZ DE FRANCE·Filed 1992·Granted Jan 18, 1994·31 cites·10 claims
- 4263US6962165B2Automatically-actuated safety device with a double-seated valve to regulate the flow rate of a fluidGAZ DE FRANCE·Filed 2003·Granted Nov 8, 2005·16 cites·14 claims
- 4363US5218651AOptical fibre incorporating a variable internal bragg grating and its applicationsGAZ DE FRANCE·Filed 1992·Granted Jun 8, 1993·34 cites·12 claims
- 4462US5369248AElectro-weldable connecting piece having connection terminals and its method of manufactureGAZ DE FRANCE·Filed 1993·Granted Nov 29, 1994·26 cites·10 claims
- 4561US6328072B1Universal safety device and process for protecting a pipelineGAZ DE FRANCE·Filed 2000·Granted Dec 11, 2001·18 cites·24 claims
- 4661US5659935AApparatus for installing a branch tapping on a pipeGAZ DE FRANCE·Filed 1994·Granted Aug 26, 1997·37 cites·13 claims
- 4761US5124134AApparatus for the conversion of hydrocarbonsGAZ DE FRANCE·Filed 1990·Granted Jun 23, 1992·8 cites·9 claims
- 4860US3961317ASystem for remote reading of indicating devices such as meters and the likeGAZ DE FRANCE·Filed 1973·Granted Jun 1, 1976·19 cites·13 claims
- 4960US2009164307A1Method of optimizing the filling of a storage facilityGAZ DE FRANCE·Filed 2008·Application pending·0 cites
- 5059US7322228B2Evaluating the leaktightness of a device for storing fuel gas under high pressureGAZ DE FRANCE·Filed 2006·Granted Jan 29, 2008·7 cites·14 claims
Showing the top 50 of 131 patent records by PatentIndex Score.
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