| Patents for F16L 9 - Rigid pipes (18,006) |
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| 04/25/2002 | US20020046776 Pipe |
| 04/25/2002 | US20020046586 Process for the production of tubular structural parts fabricated from PGM materials and having circumferential undulating bulges |
| 04/24/2002 | EP1199161A1 Polyethylene pipe |
| 04/24/2002 | EP1199116A2 Method of making tubular components with radial wave-shaped bulges |
| 04/24/2002 | EP1198870A1 Multiple channel duct assembly for cables |
| 04/24/2002 | EP1198687A1 High rigidity flange connection device |
| 04/24/2002 | EP1198336A1 Apparatus for producing multiple channel duct assembly and method thereof |
| 04/24/2002 | CN2487935Y Double-layer corrosion-proof aluminium plastic composite pipe |
| 04/24/2002 | CN2487934Y Composite ventilating pipe |
| 04/24/2002 | CN2487933Y Thermal insulation pipe |
| 04/24/2002 | CN1083550C Atactic copolymerized polypropene aluminium-sandwiched composite tube |
| 04/23/2002 | US6376595 Blend of carbon black and polymer; crosslinked polymer pipes |
| 04/17/2002 | EP1196715A1 Device for limiting propagation of deformation in a wound double-walled tube |
| 04/17/2002 | CN2486808Y Thermoplastic plastic composite high pressure pipe material |
| 04/17/2002 | CN2486807Y Gas transport pipe having resistance reducing and wear resistant inner coating |
| 04/17/2002 | CN2486806Y Improved multilayer composite pipe |
| 04/17/2002 | CN1344877A Composite silane-crosslinked polyethyelne pipe with foamed heat insualting layer and spirally wound sheel wire |
| 04/17/2002 | CN1344876A Manufacture of anticossive wear-resitant composite ceramic-metal pipe |
| 04/17/2002 | CN1344875A Polymer pipe with axially reinforcing steel wire |
| 04/16/2002 | US6371359 Stainless steel pipe and joining method thereof |
| 04/16/2002 | US6371167 Drain pipe for draining water or the like from casing |
| 04/11/2002 | WO2002029302A1 Flexible pipe element |
| 04/11/2002 | WO2002028625A1 Bonding system for pipe insulation |
| 04/11/2002 | US20020040869 System of pipework for a device for filtering and pumping the water of a swimming pool basing |
| 04/11/2002 | US20020040579 Partition wall arrangement for exhaust devices |
| 04/11/2002 | US20020040558 Reinforcing cage for an armored concrete element |
| 04/11/2002 | DE10048267A1 Production of double walled pipes made of steel comprise winding a metal strip by adjusting to the rolling axis axially and/or rotational symmetrically using side and/or height adjustment of a calibrated mill stand |
| 04/11/2002 | DE10047013A1 Method for making large diameter water pipes comprises producing core pipe consisting of sheet metal cylinder fitted with concrete lining and outer coating, winding this with steel strip and coating with flowable cement inside sleeve |
| 04/11/2002 | CA2422139A1 Bonding system for pipe insulation |
| 04/10/2002 | EP1194712A1 Conduits and conduit elements for transporting flowable media |
| 04/10/2002 | EP1194606A1 Heat resistant austenitic stainless steel |
| 04/10/2002 | EP1044240B1 Pipe, especially a pressure pipe |
| 04/10/2002 | CN2485503Y Stainless steel/carbon steel composite pipe |
| 04/10/2002 | CN2485502Y Stainless steel pipe with plastic lining |
| 04/10/2002 | CN2485501Y Plastic pipe for underground engineering |
| 04/10/2002 | CN1343798A Centrifugal casting technology for manufacturing cold drawn seamless pipe of ultralow-carbon dual-phase stainless steel |
| 04/10/2002 | CN1082642C Fluid conduit systems and methods for making |
| 04/03/2002 | EP1192216A1 Polyethylene molding material and pipe produced therewith with improved mechanical properties |
| 04/02/2002 | US6364055 Acoustically non-resonant pipe |
| 04/02/2002 | US6363975 Bonding of steel strips in steel strip laminate pipe |
| 03/28/2002 | WO2002025160A1 Arrangement for pipelines |
| 03/28/2002 | US20020037955 Product with antistatic properties |
| 03/28/2002 | US20020036405 Pipes, based on polyamide and polyolefin, for gas transmission and/or distribution |
| 03/28/2002 | US20020036020 Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids |
| 03/28/2002 | CA2419085A1 Arrangement for pipelines |
| 03/27/2002 | EP1191163A1 Reinforcing cage for concrete elements |
| 03/27/2002 | EP1190160A1 Component and method for guiding a hot pressurized medium |
| 03/27/2002 | CN2483581Y Non-adhering, prestressed, steel sleeve concrete pressure pipe |
| 03/27/2002 | CN2483580Y Non-condensation and frozen-proof composite aluminium-plastic tube |
| 03/27/2002 | CN2483579Y Spiral winded steel wire reinforced plastic composite tube |
| 03/27/2002 | CN2483578Y PP stable composite tube |
| 03/27/2002 | CN1341820A Metal-plastic composite pipe and its production method |
| 03/27/2002 | CN1341770A Ferritic stainless seamless steel tube capable of resisting seawater corrosion |
| 03/27/2002 | CN1081772C Multilayer fluid conduit and conduit system containing the same and its manufacturing method |
| 03/27/2002 | CN1081494C Process for sheathing plastic pipe with metal sheath |
| 03/26/2002 | US6361841 Oil well pipe |
| 03/26/2002 | US6361299 Composite spoolable tube with sensor |
| 03/26/2002 | US6360777 High pressure hose particularly suitable for automotive fuel delivery system |
| 03/21/2002 | WO2002023074A2 Preformed channel for piping system |
| 03/21/2002 | US20020034599 White oil extrusion lubricant |
| 03/21/2002 | US20020033197 Fuel line for a motor vehicle |
| 03/21/2002 | DE10044039A1 Flexible pipeline comprises two concentric pipes with fleece layer in interspace between same and made of material to swell up when moisture enters |
| 03/20/2002 | EP1188012A1 Hose |
| 03/20/2002 | EP1187713A2 Method of producing centrifugally cast, glass fiber reinforced plastic tubes |
| 03/20/2002 | EP0877887B1 Flexible pipe with internal gasproof undulating metal tube |
| 03/20/2002 | EP0791153B1 Polyamide- and polyolefin-based ducts for transporting |
| 03/20/2002 | CN2482615Y Plastic steel pipe with multi-strand hinged reinforced steel network |
| 03/19/2002 | US6358581 Multiple coat metal pipe and its fabrication method |
| 03/19/2002 | US6357522 Multi-channel flat tube |
| 03/19/2002 | US6357485 Composite spoolable tube |
| 03/14/2002 | WO2002020341A2 Method of reinforcing an existing metal structure, method of reinforcing pipes and method of addition of spur lines to pipelines |
| 03/14/2002 | WO2002004249A3 Contoured composite structural members and methods for making the same |
| 03/13/2002 | EP1186818A1 Elongated fuel and vapor tube having multiple layers and method of making the same |
| 03/13/2002 | CN2481940Y Stainless steel-plastic composite pipe |
| 03/13/2002 | CN2481939Y Reinforced plastic pipe |
| 03/13/2002 | CN1340109A Heat resistant austenitic stainless steel |
| 03/13/2002 | CN1339558A High temperature wear resistant short tube material of heavy oil catalytically cracking equipment |
| 03/12/2002 | US6355321 For use as a fuel tube in transportation vehicles such as automobiles; barriering properties (barrier action) against not only a gasoline-based fuel, but also a mixed fuel including alcohols, and is kink-proof |
| 03/12/2002 | US6354334 Fiber-reinforced composite wrapped steel liner |
| 03/07/2002 | WO2002018831A1 Locatable magnetized polyethylene gas pipe distribution system |
| 03/07/2002 | CA2420738A1 Locatable magnetized polyethylene gas pipe distribution system |
| 03/06/2002 | EP0954712A4 Concrete pipes and methods for the manufacture thereof |
| 03/06/2002 | CN2480656Y Metal composite type pipe |
| 03/06/2002 | CN1080369C Heat insulating noise reducing duct |
| 02/28/2002 | US20020025225 Self-flushing pipe |
| 02/28/2002 | US20020024220 Bendable polymer-lined water heater connector |
| 02/28/2002 | US20020023686 Drain pipe for draining water or the like from casing |
| 02/28/2002 | CA2317253A1 Partitioned continuous tube |
| 02/27/2002 | EP1182345A1 Vehicle fuel supply line |
| 02/27/2002 | EP1182268A1 High strength, high toughness, seamless steel pipe for line pipe |
| 02/27/2002 | EP0870143B1 Pipe insulation |
| 02/27/2002 | CN2479328Y Large diameter double-walled corrugated pipe |
| 02/27/2002 | CN2479327Y Cement stainless steel composited pipe |
| 02/27/2002 | CN2479326Y Plastic-aluminium electrophoresis corrosino-resisting composited pipe |
| 02/27/2002 | CN2479325Y Steel-plastic composited pipe |
| 02/27/2002 | CN2479324Y Steel pipe fortransfering thermal medium |
| 02/27/2002 | CN1079857C Protective sleeve with warp spacers and production method thereof |
| 02/27/2002 | CN1079727C Plastic band for production of helical wound pipes |
| 02/26/2002 | US6350204 Fiber-reinforced plastic pipe |
| 02/21/2002 | WO2002014727A1 Multilayer plastic tube for fluids used in motor vehicles |