Elf Atochem S.A.
455Patents
0Active
455Granted
41Portfolio score
Filing activity: Dec 3, 1990 → Apr 1, 2003
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5957363A | Method of performing vascular anastomosis | Human Necessities | 557 | Expired |
| US5854364A | Process for the controlled radical polymerization or copolymerization of (meth)acrylic, vinyl, vinylidene and diene monomers, and (co)polymers obtained | Chemistry; Metallurgy | 89 | Expired |
| US5747605A | Mixtures of polymers including a halogen-containing polymer and compatibilized with a grafted aliphatic polyester | Chemistry; Metallurgy | 71 | Expired |
| US5811500A | Process for the controlled radical (CO) polymerization of (Meth) acrylic vinyl vinylidene and diene monomers in the presence of an Rh Co OR Ir | Chemistry; Metallurgy | 54 | Expired |
| US5767210A | Process for controlled radical polymerization or copolymerization of (meth)acrylic and vinyl monomers and (co)polymers obtained | Chemistry; Metallurgy | 52 | Expired |
| US5919871A | Stabilization of a polymer by a stable free radical | Chemistry; Metallurgy | 50 | Expired |
| US6103790A | Cellulose microfibril-reinforced polymers and their applications | Chemistry; Metallurgy | 48 | Expired |
| US6239059A | Activator solid support for metallocene catalysts in the polymerization of olefins, a process for preparing such a support, and the corresponding catalytic system and polymerization process | Emerging Cross-Sectional Technologies | 46 | Expired |
| US6114482A | Process for the controlled radical polymerization or copolymerization of (meth) acrylic and vinyl monomers and (co) polymers obtained | Chemistry; Metallurgy | 45 | Expired |
| US5601893A | Flexible metal pipes with a shrinkable polymer sheath, a process for their fabrication, and their utilization as flexible tubular conduits | Emerging Cross-Sectional Technologies | 44 | Expired |
| US6194338A | Bimetal supported catalyst based on platinum or silver, its manufacturing process and its use for electrochemical cells | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5798415A | Cationic fluoro copolymers for the oleophobic and hydrophobic treatment of building materials | Chemistry; Metallurgy | 38 | Expired |
| US5419374A | Polyamide-based tube for a gasoline transport | Emerging Cross-Sectional Technologies | 38 | Expired |
| US5264527A | Acrylic triblock copolymers, their preparation and their application to the manufacture of elastomeric articles | Chemistry; Metallurgy | 33 | Expired |
| US5972514A | Base paints comprised of polyamide powders for use in coating PVC structures | Emerging Cross-Sectional Technologies | 33 | Expired |
| US6120619A | Passivation of stainless steels in organosulphonic acid medium | Chemistry; Metallurgy | 32 | Expired |
| US5626958A | Base paints comprised of polyamide powders for use in coating PVC structures | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5886112A | Process for the continuous anionic polymerization of at least one (meth)acrylic monomer in order to produce polymers with a high solids content | Performing Operations; Transporting | 29 | Expired |
| US5563218A | Superabsorbent polymers | Human Necessities | 28 | Expired |
| US5800928A | Breathable waterproof film | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5869414A | Breathable waterproof film | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5383964A | Process for the oxidation of cationic starches and amphoteric starches, containing carboxyl and cationic groups, thus obtained | Chemistry; Metallurgy | 27 | Expired |
| US5422418A | Polyamides and objects obtained from them | Chemistry; Metallurgy | 26 | Expired |
| US6353065B1 | Emulsion polymerization in the presence of a stable free radical | Chemistry; Metallurgy | 26 | Expired |
| US5935541A | Process for manufacture of lithium hexafluorophosphate | Chemistry; Metallurgy | 25 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.