Elf Exploration Production

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 1878
 
  
 
B01D SEPARATION 8126
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF871
 
  
 
G01V GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS 773
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR491
 
  
 
C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 3113
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 2107
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 2123
 
  
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 2196
 
  
 
B04C APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES 112

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6771800 Method of chrono-stratigraphic interpretation of a seismic cross section or blockApr 25, 01Aug 03, 04[G06T]
6765325 Alternating current electric motorJun 24, 02Jul 20, 04[H02K]
6756021 Device for eliminating gas or paraffin hydrate deposits that form in well drilling equipment or in hydrocarbon production or transportation equipmentJan 26, 01Jun 29, 04[E21B]
6634442 Process for using biodegradable drilling mudsMay 07, 01Oct 21, 03[E10K]
6636618 Method for detecting geological discontinuity in an environment using an optical flowJul 15, 99Oct 21, 03[G06K]
6628806 Method for detecting chaotic structures in a given mediumJul 17, 00Sep 30, 03[G06K]
6540021 Method for detecting inflow of fluid in a well while drilling and implementing deviceSep 10, 01Apr 01, 03[E21B]
6477469 Coarse-to-fine self-organizing map for automatic electrofacies orderingJan 08, 01Nov 05, 02[G01V]
6426321 Biodegradable drilling mud and process for its preparationMar 21, 00Jul 30, 02[C09K]
6372193 Process for oxidizing the H2S contained at low concentration in a gas directly to sulphur by catalytic means and in the vapour pauseMay 24, 00Apr 16, 02[C01B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6711529 Method for determining at least one optimal trajectory for reaching a fuzzy target situated in a medium starting from a point remote from the targetExpiredFeb 15, 00Mar 23, 04[G06F]
6531281 Method of detecting sulphate-reducing bacteriaExpiredMar 24, 00Mar 11, 03[C12Q]
6444185 Process for recovering as sulfur the compounds H2S, SO2, COS and/or CS2 in a tail gas from a sulfur plantExpiredAug 10, 00Sep 03, 02[C01B]
6446006 Method of producing impact point position probability maps for a wellExpiredAug 07, 00Sep 03, 02[G01V]
6366859 Method of detecting breaks in logging signals relating to a region of a mediumExpiredMay 08, 00Apr 02, 02[G01V]
6355150 Analyzer for measuring H2S and its use for a sulfur oxidation reactorExpiredApr 03, 00Mar 12, 02[G01N]
6272444 Method for characterizing the coherence of an environment characteristic measurementsExpiredFeb 11, 99Aug 07, 01[G06F, G01V]
6113872 Process for removing sulfur compounds out of a gasExpiredDec 16, 98Sep 05, 00[B01D]
6094621 Method for migration before summationExpiredJun 26, 98Jul 25, 00[G01V]
6044039 Geophysical attribute migration method for a mediumExpiredMar 17, 98Mar 28, 00[G01V]
6032103 Method for locating and identifying site anomaliesExpiredJan 23, 98Feb 29, 00[G06F]
6032104 Method of processing seismic signals so as to reduce the effects of dip in the analysis of moveoutsExpiredFeb 17, 98Feb 29, 00[G01V]
6028821 Process for separating waves in borehole seismics for walkway-type acquisitionsExpiredOct 07, 98Feb 22, 00[G01V]
6017507 Process for oxidation of H.sub.2 S to sulphurExpiredAug 25, 97Jan 25, 00[C01B]
6016461 Method for producing maps of the risk in positioning a well in an environmentExpiredMay 22, 98Jan 18, 00[G01V]
5999487 Seismic reflection data acquisition and processing method and device for prospecting in tectonically complex environmentsExpiredMar 18, 98Dec 07, 99[G01V]
5991237 Method for the determination of migration velocities in seismic processingExpiredMar 17, 98Nov 23, 99[G01U]
5887658 OIL well production string hangerExpiredJul 09, 97Mar 30, 99[E21B]
5831850 Method and device for control over an admissable range with contextual anticipation using fuzzy logicExpiredJul 10, 95Nov 03, 98[G05B, G06F, 274.]
5817889 Process for the purification of a glycol solutionExpiredAug 07, 95Oct 06, 98[B01D]

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