Assignee
ELF EXPLORATION PROD
FR·48 granted patents·1,220 citations·filing 1995–2001
Top patents by PatentIndex Score
48 records- 0191US5880185AMethod for preparing reinforced multigrade bitumen/polymer and use of the resulting compositions for producing bitumen/polymer binders for surface coatingsELF EXPLORATION PROD·Filed 1996·Granted Mar 9, 1999·67 cites·38 claims
- 0288US6444185B1Process for recovering as sulfur the compounds H2S, SO2, COS and/or CS2 in a tail gas from a sulfur plantELF EXPLORATION PROD·Filed 2000·Granted Sep 3, 2002·54 cites·16 claims
- 0386US6266618B1Method for automatic detection of planar heterogeneities crossing the stratification of an environmentELF EXPLORATION PROD·Filed 1998·Granted Jul 24, 2001·105 cites·13 claims
- 0485US6771800B2Method of chrono-stratigraphic interpretation of a seismic cross section or blockELF EXPLORATION PROD·Filed 2001·Granted Aug 3, 2004·74 cites·4 claims
- 0584US6328110B1Process for destroying a rigid thermal insulator positioned in a confined spaceELF EXPLORATION PROD·Filed 2000·Granted Dec 11, 2001·70 cites·14 claims
- 0682US6372193B1Process for oxidizing the H2S contained at low concentration in a gas directly to sulphur by catalytic means and in the vapour pauseELF EXPLORATION PROD·Filed 2000·Granted Apr 16, 2002·27 cites·23 claims
- 0774US6531281B1Method of detecting sulphate-reducing bacteriaELF EXPLORATION PROD·Filed 2000·Granted Mar 11, 2003·13 cites·3 claims
- 0874US5873410AMethod and installation for pumping an oil-well effluentELF EXPLORATION PROD·Filed 1997·Granted Feb 23, 1999·81 cites·5 claims
- 0973US6765325B1Alternating current electric motorELF EXPLORATION PROD·Filed 2000·Granted Jul 20, 2004·26 cites·14 claims
- 1069US6426321B1Biodegradable drilling mud and process for its preparationELF EXPLORATION PROD·Filed 2000·Granted Jul 30, 2002·17 cites·21 claims
- 1167US5960875AElectric pump having a linear motorELF EXPLORATION PROD·Filed 1997·Granted Oct 5, 1999·59 cites·7 claims
- 1265US6235259B1Method and catalyst for direct sulphur oxidation of H2S contained in a gasELF EXPLORATION PROD·Filed 1999·Granted May 22, 2001·38 cites·31 claims
- 1364US6083471AMethod and catalyst for catalytically oxidizing a low concentration of H2 S in a gas to give sulphurELF EXPLORATION PROD·Filed 1995·Granted Jul 4, 2000·32 cites·57 claims
- 1462US6293341B1Method of controlling a hydrocarbons production well activated by injection of gasELF EXPLORATION PROD·Filed 1999·Granted Sep 25, 2001·46 cites·7 claims
- 1562US6271518B1Process for detecting and characterizing formation hydrocarbonsELF EXPLORATION PROD·Filed 1998·Granted Aug 7, 2001·38 cites·9 claims
- 1658US6711529B1Method for determining at least one optimal trajectory for reaching a fuzzy target situated in a medium starting from a point remote from the targetELF EXPLORATION PROD·Filed 2000·Granted Mar 23, 2004·22 cites·17 claims
- 1758US6355150B1Analyzer for measuring H2S and its use for a sulfur oxidation reactorELF EXPLORATION PROD·Filed 1999·Granted Mar 12, 2002·32 cites·21 claims
- 1857US6756021B2Device for eliminating gas or paraffin hydrate deposits that form in well drilling equipment or in hydrocarbon production or transportation equipmentELF EXPLORATION PROD·Filed 2001·Granted Jun 29, 2004·28 cites·10 claims
- 1955US6056936ACatalytic desulphurization process for a gas containing H2 S and SO2 compounds and catalyst for implementing said processELF EXPLORATION PROD·Filed 1996·Granted May 2, 2000·17 cites·61 claims
- 2053US6446006B1Method of producing impact point position probability maps for a wellELF EXPLORATION PROD·Filed 2000·Granted Sep 3, 2002·14 cites·9 claims
- 2152US6119781AMethod of operating an oil and gas production well activated by a pumping systemELF EXPLORATION PROD·Filed 1999·Granted Sep 19, 2000·35 cites·20 claims
- 2251US6290754B1Regenerative process for the deacidification of a gas containing CO2 and liquid hydrocarbons using an absorbent liquid based on activated methyldiethanolamineELF EXPLORATION PROD·Filed 1999·Granted Sep 18, 2001·23 cites·22 claims
- 2348US6158508AMethod of operating a plant for the production of hydrocarbonsELF EXPLORATION PROD·Filed 1999·Granted Dec 12, 2000·29 cites·19 claims
- 2448US6125203AMethod for automatically determining stratification beds in a siteELF EXPLORATION PROD·Filed 1997·Granted Sep 26, 2000·26 cites·16 claims
- 2546US6113872AProcess for removing sulfur compounds out of a gasELF EXPLORATION PROD·Filed 1998·Granted Sep 5, 2000·10 cites·12 claims
- 2643US6283207B1Method for controlling a hydrocarbons production well of the gushing typeELF EXPLORATION PROD·Filed 1999·Granted Sep 4, 2001·20 cites·17 claims
- 2742US6540021B1Method for detecting inflow of fluid in a well while drilling and implementing deviceELF EXPLORATION PROD·Filed 1999·Granted Apr 1, 2003·25 cites·16 claims
- 2842US6250384B1Installation for pumping a liquid/gas two-phase effluentELF EXPLORATION PROD·Filed 1998·Granted Jun 26, 2001·19 cites·5 claims
- 2942US6016461AMethod for producing maps of the risk in positioning a well in an environmentELF EXPLORATION PROD·Filed 1998·Granted Jan 18, 2000·16 cites·15 claims
- 3038US5962780AMeasuring deviceELF EXPLORATION PROD·Filed 1998·Granted Oct 5, 1999·12 cites·4 claims
- 3137US5991237AMethod for the determination of migration velocities in seismic processingELF EXPLORATION PROD·Filed 1997·Granted Nov 23, 1999·12 cites·14 claims
- 3235US6286602B1Method for controlling a device for transporting hydrocarbons between production means and a treatment plantELF EXPLORATION PROD·Filed 1999·Granted Sep 11, 2001·19 cites·10 claims
- 3335US5831850AMethod and device for control over an admissable range with contextual anticipation using fuzzy logicELF EXPLORATION PROD·Filed 1995·Granted Nov 3, 1998·15 cites·16 claims
- 3433US6021728ABuoyancy unit with controlled heaveELF EXPLORATION PROD·Filed 1997·Granted Feb 8, 2000·6 cites·9 claims
- 3532US6628806B1Method for detecting chaotic structures in a given mediumELF EXPLORATION PROD·Filed 1999·Granted Sep 30, 2003·6 cites·5 claims
- 3632US6138763AMethod for pumping a fluidELF EXPLORATION PROD·Filed 1998·Granted Oct 31, 2000·8 cites·3 claims
- 3732US6126811AElectrocatalytic method for the deoxygenation of sea water and device for its implementationELF EXPLORATION PROD·Filed 1998·Granted Oct 3, 2000·9 cites·27 claims
- 3831US6032104AMethod of processing seismic signals so as to reduce the effects of dip in the analysis of moveoutsELF EXPLORATION PROD·Filed 1998·Granted Feb 29, 2000·7 cites·22 claims
- 3930US6028821AProcess for separating waves in borehole seismics for walkway-type acquisitionsELF EXPLORATION PROD·Filed 1998·Granted Feb 22, 2000·9 cites·12 claims
- 4029US6634442B1Process for using biodegradable drilling mudsELF EXPLORATION PROD·Filed 1999·Granted Oct 21, 2003·2 cites·31 claims
- 4128US6636618B1Method for detecting geological discontinuity in an environment using an optical flowELF EXPLORATION PROD·Filed 1998·Granted Oct 21, 2003·4 cites·5 claims
- 4228US6272444B1Method for characterizing the coherence of an environment characteristic measurementsELF EXPLORATION PROD·Filed 1998·Granted Aug 7, 2001·7 cites·11 claims
- 4328US6044039AGeophysical attribute migration method for a mediumELF EXPLORATION PROD·Filed 1997·Granted Mar 28, 2000·6 cites·6 claims
- 4427US6366859B1Method of detecting breaks in logging signals relating to a region of a mediumELF EXPLORATION PROD·Filed 1999·Granted Apr 2, 2002·9 cites·13 claims
- 4525US6094621AMethod for migration before summationELF EXPLORATION PROD·Filed 1997·Granted Jul 25, 2000·12 cites·8 claims
- 4624US5999487ASeismic reflection data acquisition and processing method and device for prospecting in tectonically complex environmentsELF EXPLORATION PROD·Filed 1997·Granted Dec 7, 1999·7 cites·21 claims
- 4722US5887658AOIL well production string hangerELF EXPLORATION PROD·Filed 1997·Granted Mar 30, 1999·4 cites·7 claims
- 4821US6032103AMethod for locating and identifying site anomaliesELF EXPLORATION PROD·Filed 1997·Granted Feb 29, 2000·3 cites·8 claims
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