ELF Exploration Production
🏢 View company profile →51Patents
0Active
51Granted
37Portfolio score
Filing activity: Jul 10, 1995 → Jun 24, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6295504A | Multi-resolution graph-based clustering | Physics | 110 | Expired |
| US6328110A | Process for destroying a rigid thermal insulator positioned in a confined space | Emerging Cross-Sectional Technologies | 68 | Expired |
| US6266618A | Method for automatic detection of planar heterogeneities crossing the stratification of an environment | Physics | 55 | Expired |
| US6444185B1 | Process for recovering as sulfur the compounds H2S, SO2, COS and/or CS2 in a tail gas from a sulfur plant | Chemistry; Metallurgy | 51 | Expired |
| US6771800B2 | Method of chrono-stratigraphic interpretation of a seismic cross section or block | Physics | 50 | Expired |
| US5873410A | Method and installation for pumping an oil-well effluent | Fixed Constructions | 46 | Expired |
| US5880185A | Method for preparing reinforced multigrade bitumen/polymer and use of the resulting compositions for producing bitumen/polymer binders for surface coatings | Chemistry; Metallurgy | 37 | Expired |
| US6271518A | Process for detecting and characterizing formation hydrocarbons | Physics | 29 | Expired |
| US5960875A | Electric pump having a linear motor | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US6235259A | Method and catalyst for direct sulphur oxidation of H2S contained in a gas | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6293341A | Method of controlling a hydrocarbons production well activated by injection of gas | Fixed Constructions | 19 | Expired |
| US6756021B2 | Device for eliminating gas or paraffin hydrate deposits that form in well drilling equipment or in hydrocarbon production or transportation equipment | Fixed Constructions | 15 | Expired |
| US6125203A | Method for automatically determining stratification beds in a site | Physics | 15 | Expired |
| US6355150B1 | Analyzer for measuring H2S and its use for a sulfur oxidation reactor | Physics | 14 | Expired |
| US6119781A | Method of operating an oil and gas production well activated by a pumping system | Fixed Constructions | 13 | Expired |
| US6083471A | Method and catalyst for catalytically oxidizing a low concentration of H.sub.2 S in a gas to give sulphur | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6158508A | Method of operating a plant for the production of hydrocarbons | Fixed Constructions | 11 | Expired |
| US6372193B1 | Process for oxidizing the H2S contained at low concentration in a gas directly to sulphur by catalytic means and in the vapour pause | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5831850A | Method and device for control over an admissable range with contextual anticipation using fuzzy logic | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5883162A | Process for the preparation of elastomer/bitumen compositions and their application as road surfacings | Chemistry; Metallurgy | 9 | Expired |
| US6283207A | Method for controlling a hydrocarbons production well of the gushing type | Fixed Constructions | 9 | Expired |
| US6540021B1 | Method for detecting inflow of fluid in a well while drilling and implementing device | Fixed Constructions | 9 | Expired |
| US6711529B1 | Method for determining at least one optimal trajectory for reaching a fuzzy target situated in a medium starting from a point remote from the target | Physics | 9 | Expired |
| US6426321B1 | Biodegradable drilling mud and process for its preparation | Chemistry; Metallurgy | 8 | Expired |
| US6446006B1 | Method of producing impact point position probability maps for a well | Physics | 8 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.