| Patents for F16L 9 - Rigid pipes (18,006) |
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| 12/13/2001 | WO2001094826A2 Novel textile reinforced thermoplastic or thermoset pipes and methods of making thereof |
| 12/13/2001 | WO2001094112A1 Multi-layered pipe |
| 12/13/2001 | WO2001094110A1 Thermoplastic multilayer composites |
| 12/13/2001 | WO2001094044A1 Device and method for manufacturing soft metal tube |
| 12/13/2001 | WO2001094043A1 High-strength steel pipe excellent in formability and burst characteristics |
| 12/13/2001 | US20010050481 Duplex pipe end working method and duplex pipe end working apparatus |
| 12/13/2001 | US20010050478 Plastic molding having two or more layers and antistatic properties |
| 12/13/2001 | CA2411679A1 Multi-layered pipe |
| 12/13/2001 | CA2380429A1 Multilayer resin tube |
| 12/13/2001 | CA2341796A1 Fluid transport |
| 12/12/2001 | EP1162397A2 Metal-composite corrugated hoses and a process for manufacturing the same |
| 12/12/2001 | EP1162061A1 Thermoplastic laminates |
| 12/12/2001 | EP1161568A1 Tube and use thereof |
| 12/12/2001 | EP0835177B1 Extrusion apparatus and method for orienting plastic material by using an extrusion apparatus |
| 12/12/2001 | CN2465022Y Permeation-proof underground high-pressure water pipe made of double-layer concrete and steel sheet |
| 12/12/2001 | CN2465021Y Steel plastics combined pipe |
| 12/12/2001 | CN2465020Y Enamelled pipe |
| 12/12/2001 | CN2465019Y Stainless steel-thermal insulation layer-glass fibre reinforced plastics combined pipe |
| 12/12/2001 | CN2465018Y All corrosion-resistant steel-plastics combined pipe |
| 12/12/2001 | CN2465017Y Inner wall spiral pipe cable of speeding inner article moving |
| 12/12/2001 | CN2464838Y Wire-pulling warning sleeve |
| 12/12/2001 | CN1326064A High-strength composite glass steel pipe |
| 12/11/2001 | US6329079 Retards coking in petroleum cracking unit producing ethylene, welded iron and aluminum alloy overlay |
| 12/11/2001 | US6328074 Pipe for conveying fluids such as petroleum products |
| 12/11/2001 | CA2167708C A thin-wall polytetrafluoroethylene tube |
| 12/11/2001 | CA2109730C Secondary containment flexible underground piping system |
| 12/05/2001 | EP1159349A1 Master batch |
| 12/05/2001 | EP0932793B1 Piece of piping through which waste gas flows of a system of pipes carrying waste gases, and this system of pipes |
| 12/05/2001 | EP0805744B1 Hot melt fluidized cladding of innerduct liner |
| 12/05/2001 | CN2463646Y Hollow wall internal screw pipe |
| 12/05/2001 | CN2463645Y Superhigh pressure plastic-steel wound composited pipe |
| 12/05/2001 | CN2463644Y Plastic-lined metal pipe |
| 12/05/2001 | CN2463643Y Multiunit plastic-lined wire aluminium alloy pipe |
| 12/05/2001 | CN2463642Y Multiunit pipe for air conditioner and refrigerator |
| 12/05/2001 | CN2463641Y Plastic multiunit water-drinking pipe |
| 12/05/2001 | CN2463640Y Multiunit plastic hot-water pipe |
| 12/04/2001 | US6325959 Forming plastic into pipe, partially crosslinking, orienting biaxially in the axial and peripheral directions, additionally crosslinking |
| 12/04/2001 | US6325108 Prestressed composite cryogenic piping |
| 12/04/2001 | US6325107 Metal pipeline having a protective coating layer for an automobile |
| 12/01/2001 | CA2310477A1 Well production apparatus and method |
| 11/29/2001 | US20010046575 Thin-walled cylinder made from fibre-reinforced plastics material |
| 11/29/2001 | US20010045238 Plastic pipe with structure having improved critical pressure |
| 11/29/2001 | DE10025707A1 Mehrschichtiges, verstärktes Kunststoffanbindungselement mit antistatischen Eigenschaften The multi-layered reinforced plastic connecting element with antistatic properties |
| 11/29/2001 | DE10023890A1 High pressure fluid pipe for underground use has thin-walled stainless steel pipe inserted in pipe and with its outer diameter matching inside diameter of high pressure pipe |
| 11/29/2001 | DE10021771A1 Tube for heat exchange purposes has double-wall inner tube, outer wall of which has spiral corrugation |
| 11/28/2001 | EP1158159A1 Intake manifold with multiple pipes |
| 11/28/2001 | EP1157822A1 Multilayer reinforced plastics connector with antistatic properties |
| 11/28/2001 | CN2462179Y Combined flue pipe of air conditioning system |
| 11/28/2001 | CN2462178Y Pollution-proof water delivery pipeline |
| 11/28/2001 | CN2462177Y Three-layer composite inorganic padding silencing heat durable pipe material |
| 11/28/2001 | CN2462176Y Reinforced aluminium-plastic multi-layer composite high pressure pipe material |
| 11/28/2001 | CN2462175Y Foamed internal spiral pipe material with hard polyvinyl chloride layer |
| 11/28/2001 | CN1324438A Pipe coupling having same out diameter as pipe |
| 11/28/2001 | CN1324383A High mixture-quality Bi-modal polyethylene blends |
| 11/28/2001 | CN1324295A Hollow solid generated by rotation and method for making same |
| 11/27/2001 | US6321795 Multi-layer fuel and vapor tube |
| 11/26/2001 | CA2349130A1 Reinforced plastic connector having two or more layers and antistatic properties |
| 11/22/2001 | US20010042569 Multi-layer fuel and vapor tube |
| 11/21/2001 | CN2460827Y Stainless steel lining compound pipe structure with electrothermal coating layer |
| 11/21/2001 | CN2460826Y Alluminium alloy tubulation resisting sea water corrosion |
| 11/21/2001 | CN1322616A Pipe fitting moulding parts using for plastic extrusion and injection moulding liquid media |
| 11/20/2001 | CA2090494C Process for making a variable stiffness line, and related element |
| 11/15/2001 | WO2001086183A1 Control cable |
| 11/15/2001 | WO2001085835A1 Reinforced polyamide with improved thermal ageing properties |
| 11/15/2001 | US20010041237 Method for forming a duct and a duct |
| 11/15/2001 | DE10022144A1 Molding compositions, especially useful for making fuel pipes and tanks, comprise polyamide, layered silicate nanoparticles and reinforcing material |
| 11/14/2001 | EP1154183A1 Double-walled pipeline of improved buckling resistance |
| 11/14/2001 | CN2459512Y Steel-plastics composite pipe and plastics lined malleable iron pipe joint |
| 11/14/2001 | CN2459511Y Thermo-insulation foaming mateiral aluminium-plastic composite pipe |
| 11/14/2001 | CN2459510Y Thermo-insulation material for ventilation pipe |
| 11/14/2001 | CN2459509Y Isolation, corrosion-resistant composite pipe |
| 11/14/2001 | CN2459508Y Ribbed underground pipe |
| 11/14/2001 | CN1074822C Method and system for heating pipe bundle |
| 11/14/2001 | CN1074710C Method and apparatus for producing plastic pipe and plastic pipe |
| 11/13/2001 | US6316537 Heat-ageing resistance, resistance to peroxide-containing motor fuels; piping systems which transport combustible fluids, e.g. motor fuel |
| 11/13/2001 | US6315004 Electrostatic charge neutralizing fume duct |
| 11/08/2001 | WO2001084031A1 Method to increase ring rigidity in pipes made from plastic-based material |
| 11/08/2001 | US20010037837 Metal pipe |
| 11/08/2001 | US20010037836 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 |
| 11/07/2001 | EP1152181A1 Multilayer plastic pipe with improved resistance to crack propagation |
| 11/07/2001 | CN1320716A Petroleum gas delivering pipe and its production method |
| 11/07/2001 | CN1320715A Centrifugal cast high-antiwear pipe and its production method |
| 11/06/2001 | US6311735 Collapsible plenum |
| 11/01/2001 | WO2001081688A1 Sheath pipe, sheath pipe manufacturing method, and sheath pipe manufacturing apparatus |
| 11/01/2001 | WO2001081061A1 Method for manufacturing curved thermoplastic tubes |
| 11/01/2001 | US20010035224 Superinsulation support system |
| 10/31/2001 | DE10019384A1 Method for producing a compound pipe for transport of fluid media involves application of high internal pressure to bring the loosely fitting pipes into contact with one another at least at certain points |
| 10/31/2001 | CN2457423Y Pipe wall screw winding formed plastic tube |
| 10/31/2001 | CN1319737A Nanometer high-property resin composite material pipeline and making method thereof |
| 10/31/2001 | CN1074106C Pipe screw joint |
| 10/30/2001 | US6309717 Composite paperboard containers of optimized axial strength construction |
| 10/30/2001 | US6309574 Extrusion of high molecular weight polymers |
| 10/30/2001 | CA2042986C Double wall fire proof duct |
| 10/25/2001 | WO2001079345A1 Polymer composition for pipes |
| 10/25/2001 | DE10018324A1 Extrudiertes, spritzgegossenes oder blasgeformtes Rohr, Fitting oder Formstück aus Kunststoff zum Erstellen von Rohrleitungen für flüssige, pastöse und gasförmige Medien Extruded, injection molded or blow molded pipe, fitting or shaped piece of plastic to create pipelines for liquid, paste and gaseous media |
| 10/25/2001 | CA2405280A1 Polymer composition for pipes |
| 10/24/2001 | EP1147004A1 Spiral wound pipe and a method for manufacturing the same |
| 10/24/2001 | EP0977786A4 Premium pipe resins |
| 10/24/2001 | CN2455991Y Corrosionproof metal lining pipe for composite pipe |
| 10/24/2001 | CN1318704A Pipe and pipe fittings with stainless steel lining and their manufacture |