Elf Antar France
54Patents
1Active
54Granted
37Portfolio score
Filing activity: Oct 6, 1992 → Feb 4, 2008 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5708593A | Method for correcting a signal delivered by a measuring instrument | Physics | 72 | Expired |
| US5460714A | Liquid phase catalytic hydrocarbon hydroconversion with polyaromatic additive | Chemistry; Metallurgy | 42 | Expired |
| US5618862A | Preparation of bitumen/polymer compositions and use thereof | Chemistry; Metallurgy | 35 | Expired |
| US6068670A | Emulsified fuel and one method for preparing same | Chemistry; Metallurgy | 33 | Expired |
| US6087420A | Process for the preparation of polymer/bitumen compositions and their use in coatings | Chemistry; Metallurgy | 30 | Expired |
| US5965091A | Filled paper for gas filtration | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5756565A | Non-gellable bitumen/polymer compositions | Chemistry; Metallurgy | 27 | Expired |
| US6011095A | Method for preparing bitumen/polymer compositions and use thereof | Chemistry; Metallurgy | 24 | Expired |
| US5314935A | Bitumen/polymer component making it possible to obtain bitumen/polymer compositions with very low thermal sensitivity, capable of being employed for the production of surfacings | Chemistry; Metallurgy | 23 | Expired |
| US7179368B2 | Method for desulfurizing thiophene derivatives contained in fuels | Chemistry; Metallurgy | 22 | Expired |
| US5457985A | Process for measuring the cetane number of supply fuels for diesel engines and apparatus for performing this process | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US6012019A | Process for tracking and monitoring a manufacturing unit and/or a near-infrared spectrometer by means of at least one criterion of quality of sets of spectra | Physics | 20 | Expired |
| US6511520B1 | Additive for fuel oiliness | Chemistry; Metallurgy | 20 | Expired |
| US5993061A | Device for measuring the temperature of a hot wall | Physics | 17 | Expired |
| US6090745A | Process for preparing water-treatment catalysts | Chemistry; Metallurgy | 17 | Expired |
| US6224768A | Filter paper for laden liquids | Performing Operations; Transporting | 17 | Expired |
| US5505237A | Aircraft refuelling installation | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5449386A | Amine phosphates having a terminal cyclic imide | Chemistry; Metallurgy | 12 | Expired |
| US6113661A | Fuel composition for diesel engines containing oxygenated compounds | Chemistry; Metallurgy | 11 | Expired |
| US6071318A | Bifunctional cold resistance additive for fuels, and fuel composition | Chemistry; Metallurgy | 11 | Expired |
| US6218449A | Process for the preparation of functionalized elastomer/bitumen compositions and their use in coatings | Chemistry; Metallurgy | 10 | Expired |
| US7374589B2 | Fuel with low sulphur content for diesel engines | Chemistry; Metallurgy | 10 | Expired |
| US6083287A | Detergent and anti-corrosive additive for fuels and fuel composition | Chemistry; Metallurgy | 8 | Expired |
| US6592639B2 | Fuel with low sulphur content for diesel engines | Chemistry; Metallurgy | 8 | Expired |
| US6026778A | Method and device for decoking a combustion chamber of a diesel engine | Physics | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.