Elf Aquitaine Production

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF475
 
  
 
E21B EARTH OR ROCK DRILLING 492
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 3135
 
  
 
G01V GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS 377
 
  
 
B01D SEPARATION 2132
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 2107
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 253
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR293
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 2445
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1124

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6056936 Catalytic desulphurization process for a gas containing H.sub.2 S and SO.sub.2 compounds and catalyst for implementing said processJan 22, 97May 02, 00[C01B, B01J, B01D]
6011094 Process for the preparation of bitumen-polymer compositions containing a crosslinked elastomer and a functionalized olefinic polymerJul 09, 96Jan 04, 00[C08L]
6011557 Method for obtaining a representation of a geological structureMay 16, 97Jan 04, 00[G06T]
5990356 Method for purifying dimethyl sulphoxide (DMSO)May 12, 98Nov 23, 99[C07C]
5940777 Automatic seismic pattern recognition methodAug 04, 97Aug 17, 99[G06F]
5858489 System for thermal and/or acoustic insulation of a tubeOct 31, 96Jan 12, 99[B29C, E21B]
5812493 Method of representing the trajectory of at least one borehole in a space-time domainFeb 27, 97Sep 22, 98[E21B, G01V]
5786511 Process for the preparation of organic disulphides and polysulphides in the presence of polystyrene-divinyl-benzene possessing primary amine groupsDec 11, 96Jul 28, 98[C07C]
5764514 Method for modelling kinematic seismic data processed with at least one motion operatorNov 13, 95Jun 09, 98[G01V]
5725771 Process for enzyme pretreatment of drill cuttingsApr 15, 96Mar 10, 98[C02F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6101446 Method for charting drillable zones in an oilfield avoiding anomaly zonesExpiredMar 30, 99Aug 08, 00[G01V]
6075752 Method for exploring an environment with a complex tectonicsExpiredSep 20, 96Jun 13, 00[G01V]
6011334 In-line fluid-driven electric power generatorExpiredFeb 28, 97Jan 04, 00[H02K, F04B]
5973080 Process for the preparation of resins with a primary amine or guanidine function, and resins thus obtainedExpiredJan 27, 98Oct 26, 99[C08F]
5959203 Method for automatic identification of the nature of a hydrocarbon production wellExpiredApr 18, 97Sep 28, 99[E21B]
5909655 Method for processing reflection seismic traces recorded for variable offsetsExpiredAug 11, 97Jun 01, 99[G06F]
5817716 Resins with a primary amine or guanidine functionExpiredDec 29, 97Oct 06, 98[C08G, C08F]
5788000 Stabilizer-reamer for drilling an oil wellExpiredOct 30, 96Aug 04, 98[E21B]
5784335 Method for making a 3-D cube of near traces from data acquired in a marine reflection seismic surveyExpiredFeb 15, 96Jul 21, 98[G01V]
5774418 Method for on-line acoustic logging in a boreholeExpiredApr 03, 97Jun 30, 98[G01V]
5766567 Method for desulphurising a gaseous mixture containing H.sub.2 S and SO.sub.ExpiredJun 06, 95Jun 16, 98[B01D]
5767229 Process for the preparation of organic disulphides and polysulphides in the presence of polystyrene-divinyl-benzene (PS-DVB) resins possessing guanidine or amidine groupsExpiredDec 11, 96Jun 16, 98[C08G]
5747673 Method for measuring with great precision the volume variation occurring when fluid phases mix in order to determine physico-chemical characteristicsExpiredSep 27, 96May 05, 98[G01F]
5738464 Curvature limiter for a pipe running in a marine environmentExpiredSep 24, 96Apr 14, 98[F16L, E02B]
5726253 Process for the preparation of resins with a primary amine or guanidine function, and resins thus obtainedExpiredDec 11, 96Mar 10, 98[C08F]
5659090 Steps in a process for the production of at least one alkyl tertiobutyl ether from natural gasExpiredOct 19, 95Aug 19, 97[C07C]
5656252 Process for obtaining zeolites containing titaniumExpiredJan 30, 95Aug 12, 97[C01B]
5630906 Process for the delignifcation and bleaching of a lignocellulose materialExpiredFeb 23, 95May 20, 97[D21C]
5620048 Oil-well installation fitted with a bottom-well electric pumpExpiredSep 29, 95Apr 15, 97[E21B]
5616842 Device for evaluation of the lubricating charcteristics of a drilling mudExpiredJul 14, 95Apr 01, 97[G01N]

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