| Patents for F16L 9 - Rigid pipes (18,006) |
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| 08/15/2001 | CN2443214Y Double-layer composite plastic pipe |
| 08/15/2001 | CN2443213Y Core composite plastic pipe |
| 08/15/2001 | CN2443212Y Assembled air-conditioner ventilating duct |
| 08/14/2001 | US6274071 Method and apparatus for preparing an extrudable product, and an extruded product |
| 08/14/2001 | US6273144 Method for inhibiting external corrosion on an insulated pipeline |
| 08/14/2001 | US6273143 Bonding of steel strips in steel strip laminate pipe |
| 08/14/2001 | CA2240127C Polyolefin-coated steel pipe having high resistance to thermal oxidative degradation and high weatherability and a process for manufacturing the same |
| 08/09/2001 | WO2001057286A1 High strength, high toughness, seamless steel pipe for line pipe |
| 08/09/2001 | WO2001056711A1 Conduit with an ultraphobic inner wall |
| 08/09/2001 | US20010012476 Device having a radial partition, especially for arresting the propagation of a radial buckle in a double-walled pipe intended for great depths |
| 08/09/2001 | DE4143646C2 Schalldämmmaterial für Rohrleitungen Sound insulation material for pipes |
| 08/09/2001 | DE10004724A1 Rohrleitung mit ultraphober Innenwand Pipe with ultraphobic inner wall |
| 08/08/2001 | EP1122479A2 Multi-layer fuel and vapor tube |
| 08/08/2001 | EP1122060A1 Multilayer structure and tank consisting of this structure, which has a barrier layer in direct contact with the fluid contained |
| 08/08/2001 | EP1122059A2 Multi-layer fuel and vapor tube |
| 08/08/2001 | EP1122005A2 Bent pipe for passing therethrough a material containing solids |
| 08/08/2001 | EP1121556A1 Superinsulation support system |
| 08/08/2001 | EP1121552A1 Traction device for constructing an underwater system for transporting fluid, energy or signals |
| 08/08/2001 | EP1121551A1 Assembly for constructing an underwater system for transporting fluid, energy or signals |
| 08/08/2001 | CN2442066Y Renewed water transport pipe with inner lining of modified polyvinyl layer |
| 08/08/2001 | CN2442065Y Renewed water transport pipe with inner lining of nonwowen composite fiber film |
| 08/08/2001 | CN2442064Y 高强复合管 High-strength composite pipe |
| 08/08/2001 | CN1307612A Polymer composition for pipes |
| 08/07/2001 | US6270865 High air velocity duct board having minimal turbulence |
| 08/02/2001 | WO2001055630A1 Radial partition device, in particular radial buckle arrestor for a double-walled deep water pipeline |
| 08/01/2001 | EP1120595A2 Multi-layer fuel and vapor tube |
| 08/01/2001 | EP1120594A2 Multi-layer fuel and vapor tube |
| 08/01/2001 | EP1120240A2 Multi-layer fuel and vapor tube |
| 08/01/2001 | CN1306169A Metallic skeleton reinforced composite plastic pipe |
| 08/01/2001 | CN1306168A Thin-wall stainless steel tube for high-or middle-pressure water supply |
| 07/31/2001 | US6267148 Heat-aging resistance and oxygenated-gasoline resistance |
| 07/26/2001 | WO2001053566A1 Corrosion resistant metal tube and process for making the same |
| 07/26/2001 | WO2001053367A1 Crosslinkable polyethylene composition |
| 07/26/2001 | DE10002461A1 Mehrschichtiges Kunststoffrohr mit guter Schichtenhaftung A multilayer plastic pipe with good adhesion between the layers |
| 07/25/2001 | EP1118807A2 Multilayered plastic pipe with good layer adhesion |
| 07/24/2001 | US6263921 Composite plastic pipe with netted steel wire skeleton and method and device for fabricating the same |
| 07/24/2001 | US6263920 Multi-layer assembly for fluid and vapor handling and containment systems |
| 07/21/2001 | CA2331519A1 Multilayer plastic pipe with good layer adhesion |
| 07/19/2001 | WO2001051838A1 Metallic pipe and method of making same |
| 07/19/2001 | WO2001051737A1 Pipe for steel frame structure |
| 07/19/2001 | WO2001032401A8 Method of making a spirally-wound tube |
| 07/19/2001 | US20010008665 Metal tubing coated with multiple layers of polymeric materials |
| 07/19/2001 | US20010008663 Pipes for conveying drinking water |
| 07/19/2001 | US20010008150 Multilayer hose for transporting hot fluids |
| 07/18/2001 | EP1116910A1 Multilayered pipe for conveying hot fluids |
| 07/18/2001 | CN2439585Y Metallic spiral woven net and plastic composite tube |
| 07/18/2001 | CN1304355A Composite pipe structure heaving improved containment and axial strength |
| 07/13/2001 | CA2295371A1 Metallic pipe and method of making same |
| 07/12/2001 | DE19616326C2 Gegen Korrosion und Abblättern beständige Harzüberzugsstruktur für rostfreie Stahlrohre Against corrosion and peeling resistant resin coating structure for stainless steel pipes |
| 07/11/2001 | EP1114690A1 Method of connecting two elongated portions of metallic plate, method of manufacturing exhaust pipe of two-passage construction, and exhaust pipe of two-passage construction |
| 07/11/2001 | CN2438903Y High polymer stretch directional strong composite plastic pipe with hollow reinforcing structure on wall |
| 07/11/2001 | CN2438902Y Baking-free ceramic lining nodular cast iron tube |
| 07/11/2001 | CN2438901Y Plastic grid reinforced tubing |
| 07/11/2001 | CN1068275C Method and device for producing moulded bodies from polymer concrete |
| 07/11/2001 | CN1068274C Oriented polymeric products |
| 07/10/2001 | US6257281 Form motor vehicles |
| 07/10/2001 | US6256938 Elongate hollow element |
| 07/05/2001 | DE19953737C1 Multiple layer composite tube used for heating and sanitary installations has an intermediate layer connected to outer and inner material layers at several points along the periphery |
| 07/04/2001 | CN2437935Y Monodirectional stretch oriented high-strentgh composite plastic pipe |
| 07/04/2001 | CN2437934Y Composite pipe with special elastic sheet lining |
| 07/04/2001 | CN2437933Y Plastic coated copper pipe |
| 07/04/2001 | CN2437932Y Stretch oriented high-strength composite plastic pipe |
| 07/04/2001 | CN2437931Y Stretch oriented high-strength composite plastic pipe with foam layer |
| 07/04/2001 | CN2437930Y Sound insulation PVC pipe |
| 07/03/2001 | US6253873 Gas guide element with sound-absorbent walls for blocking and damping noise spreading from it into main conduits |
| 07/03/2001 | US6253712 Positionable and expandable tube system having slotted tube segments |
| 06/28/2001 | DE10047351A1 Highpressure fuel sleeve for motor vehicles comprises rubber tube joined at downstream end by ring to steel pipe and fitted one end with inside vibration damper as double interconnecting tubes or single tube coiled from plastic strip. |
| 06/27/2001 | CN2436752Y Environment protection composite stainless steel pipe |
| 06/26/2001 | US6251332 Hollow plastic pipes from cores, molds layer integrally on the outer peripheral surface of the hollow plastic core. the spacer deformed when a molten plastic material is supplied into the mold cavity under pressure. |
| 06/26/2001 | US6250340 For chemical processing industry, especially for petrochemicals; centrifugally cast, creep resistant tubes comprising carbon, chromium, nickel, niobium, silicon, tungsten, and iron having non-circular internal profile |
| 06/21/2001 | WO2001044706A1 Flexible long-length submarine pipeline with an expandable structure |
| 06/21/2001 | WO2001044549A1 Woven composite fabric |
| 06/21/2001 | WO2001044548A1 Reinforced fabric |
| 06/21/2001 | WO2001043952A1 A reinforcing structure for stiff composite articles |
| 06/21/2001 | WO2001043951A1 A reinforcing structure for stiff composite articles |
| 06/21/2001 | US20010004014 Multi-channel flat tube |
| 06/21/2001 | US20010003992 Subsea flexible pipe of long length and modular structure |
| 06/20/2001 | EP1108938A2 Tubing with connecting piece |
| 06/20/2001 | CN2435607Y Fibre wound sanding pipeline |
| 06/20/2001 | CN2435606Y Phenolic foam compound wind pipe |
| 06/19/2001 | US6247500 Conduit systems |
| 06/14/2001 | WO2001042338A2 Thermal insulating device |
| 06/14/2001 | CA2393697A1 Thermal insulating device |
| 06/13/2001 | EP1106890A1 Diffusion tight fluid conduit |
| 06/13/2001 | EP1106843A1 Duct and method for forming the same |
| 06/13/2001 | EP0972154B1 Composite structures having high containment strength |
| 06/13/2001 | EP0912330A4 Laminated fuel and vapor return lines |
| 06/13/2001 | CN2434509Y Steel/plastic compound tube |
| 06/13/2001 | CN1299394A Master batch |
| 06/12/2001 | US6245183 Brake lines and fuel lines, zinc metal pipes, |
| 06/07/2001 | WO2001040694A2 Pressurized fluid pipe |
| 06/07/2001 | WO2001039955A1 Pipe with composite wall construction and method of making same |
| 06/07/2001 | DE19957567A1 Diffusionsdichte Fluidleitung Diffusion density fluid line |
| 06/06/2001 | CN2433489Y Non-binding prestressed concret steel sleeve pressure pipe |
| 06/06/2001 | CN2433488Y Noise-reduction drainage pipe |
| 06/06/2001 | CN1298469A Foldable tube |
| 06/06/2001 | CN1298468A Deformable liner tube |
| 06/05/2001 | US6242112 Use of a Ni-base alloy for compound tubes for combustion plants |
| 06/05/2001 | US6240972 Multi-wound metal tube |
| 06/05/2001 | US6240971 Composite structures having improved containment strength |