Coflexip
99Patents
1Active
99Granted
38Portfolio score
Filing activity: Jun 9, 1975 → Dec 23, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4256146A | Flexible composite tube | Mechanical Engineering; Lighting; Heating | 76 | Expired |
| US6123114A | Flexible pipe for riser in off-shore oil production | Mechanical Engineering; Lighting; Heating | 64 | Expired |
| US6472614B1 | Dynamic umbilicals with internal steel rods | Electricity | 57 | Expired |
| US5428706A | Flexible tubular conduit with heating means and stiffening means for transporting pressurized fluids | Mechanical Engineering; Lighting; Heating | 55 | Expired |
| US5275209A | Hose including an aluminum alloy | Mechanical Engineering; Lighting; Heating | 53 | Expired |
| US6192941A | Flexible tubular pipe comprising an interlocked armouring web | Mechanical Engineering; Lighting; Heating | 52 | Expired |
| US4906137A | Apparatus for transferring fluid between subsea floor and the surface | Mechanical Engineering; Lighting; Heating | 51 | Expired |
| US6354333B1 | Resistant flexible pipe comprising sealing sleeve with limited creep | Mechanical Engineering; Lighting; Heating | 46 | Expired |
| US4514245A | Method for reinforcing a hollow body made by winding a profiled section | Emerging Cross-Sectional Technologies | 41 | Expired |
| US6085799A | Use of a buried flexible pipeline | Mechanical Engineering; Lighting; Heating | 38 | Expired |
| US6361250B1 | Device and method for installing pipes at very great depths | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US4332509A | Riser pipe system for collecting and raising petroleum produced from an underwater deposit | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US6145546A | Flexible flowline for conveying fluids | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US6691743B2 | Flexible pipe with wire or strip winding for maintaining armours | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US4626306A | Process for manufacturing profiled strips in fiber-loaded thermoplastic resin, installation for the implementation thereof and profiled strips obtained | Performing Operations; Transporting | 36 | Expired |
| US6220303A | Device for limiting the bending radius of a flexible duct | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US6923477B2 | End-fitting for flexible pipe | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US6415825B1 | Flexible conduit with high inertia hoop | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5024252A | Hoses stable in length under the effect of an internal pressure | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| US5437518A | Device for mounting a flexible line comprising a curvature limiter | Fixed Constructions | 32 | Expired |
| US5348423A | Device and process for unrolling flexible tubular conduits essentially vertically | Performing Operations; Transporting | 31 | Expired |
| US6408891B1 | Flexible pipe for static use in a corrosive ambience | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US6283161A | Flexible tube having at least one elongated reinforcing element with a t-shape | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US4377186A | Floating flexible tubes | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US6620471B1 | Composite carbon fibre based armour for flexible pipe | Emerging Cross-Sectional Technologies | 28 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.