Elf Aquitaine
30Patents
0Active
30Granted
37Portfolio score
Filing activity: Sep 3, 1993 → Sep 15, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5538867A | Process for the electrochemical regeneration of pyridine cofactors | Emerging Cross-Sectional Technologies | 59 | Expired |
| US5928185A | Iontophoresis device for the transcutaneous delivery of an active principle such as an anionic oligosaccharide | Human Necessities | 56 | Expired |
| US6064908A | Device for ionophoresis comprising at least a membrane electrode assembly, for the transcutaneous administration of active principles to a subject | Human Necessities | 54 | Expired |
| US6146613A | Method of zeolite synthesis with homogeneous shaking out of the medium, device and application | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5550761A | Method for modelling multiphase flows in pipelines | Physics | 20 | Expired |
| US5477705A | Refrigerating and heating apparatus using a solid sorbent | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5675050A | Crystalline microporous solids consisting of aluminophosphates substituted by a metal and optionally by silicon and belonging to the FAU structure type, their synthesis and applications | Chemistry; Metallurgy | 13 | Expired |
| US5493996A | Device for automatically cleaning birds | Human Necessities | 10 | Expired |
| US6063944A | Method for preparing lattice-inserted titanium zeolites, and use thereof | Chemistry; Metallurgy | 10 | Expired |
| US5614641A | Process for enantioselective hydrogenation of the oxo C.dbd.O double bond | Performing Operations; Transporting | 7 | Expired |
| US5877389A | Process for the oxidative decomposition of organic compounds present in aqueous effluents | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5607889A | Process for producing an active composite and active composite produced by this process | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5507158A | Device for indirect production of cold for refrigerating machine | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5569534A | Reactant in the form of granules for thermochemical systems | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5807305A | Iontophoresis device comprising at least one electrode assembly with a reversible composite electrode | Human Necessities | 4 | Expired |
| US6017762A | Cassette for the expression of an endothiapepsin precursor in Cryphonectria parasitica | Chemistry; Metallurgy | 3 | Expired |
| US6045915A | Active composite having a laminate structure comprising an active agent in the form of granules | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5553568A | Cage for automatically cleaning birds | Human Necessities | 3 | Expired |
| US5861207A | Active composite with foliated structure and its use as reaction medium | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5612294A | Scleroglucan based drilling mud | Chemistry; Metallurgy | 3 | Expired |
| US6190646A | Nutrient microemulsion in spray form, useful as a biodegradation accelerator | Chemistry; Metallurgy | 3 | Expired |
| US5612272A | Method of producing an active composite | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US5712357A | Method for metathetically preparing sulphur containing polymers or organic compounds | Chemistry; Metallurgy | 2 | Expired |
| US5478545A | Process for using reactions of gas/solid type in which the solid reactant contains an at least partially hydrated salt | Chemistry; Metallurgy | 2 | Expired |
| US5857346A | Reactant for thermochemical systems and thermochemical system intended to employ such a reactant | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.