| Patents for F16L 9 - Rigid pipes (18,006) |
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| 12/09/2009 | CN101598248A Cement concrete transportation pipe in ceramic particle and fiberglass reinforced plastic construction |
| 12/09/2009 | CN101597415A Polymer alloy for manufacturing plastic pipeline insert |
| 12/09/2009 | CN100567789C Reinforced composite pipe and manufacturing apparatus thereof |
| 12/09/2009 | CN100567788C Thermally insulated pipeline, application thereof and sea terminal for transporting liquefied gas |
| 12/09/2009 | CN100567787C Synthetic resin pipe |
| 12/09/2009 | CN100566922C Process for manufacturing corrosion resistant low-chromium tubing in CO2 and H2S coexisted environment |
| 12/03/2009 | WO2009145698A1 Duct means for an air flow or a gas flow and a method for manufacturing, handling and mounting said duct means |
| 12/03/2009 | WO2009144166A1 Propylene-hexene random copolymer produced in the presence of a ziegler natta catalyst |
| 12/03/2009 | US20090293981 Multi-layer pipe and method for its manufacture |
| 12/03/2009 | US20090293980 Metallic tubular structure |
| 12/03/2009 | US20090293974 Piping Unit for Transporting Fuel |
| 12/03/2009 | DE202009011120U1 Rohrbogen Elbows |
| 12/03/2009 | DE102008025226A1 Leitung zur Führung eines Mediums Line for guiding a medium |
| 12/03/2009 | DE102008024009A1 Longitudinally welded multilayer pipe for use in oil industry, particularly petrochemical industry and for constructing large buildings, has fixed, pressure-resistant top layer and thin, corrosion resistant inner layer |
| 12/02/2009 | EP2128505A2 A tube of fabric reinforced PVC |
| 12/02/2009 | CN201354895Y Plastics double-wall wounded corrugated pipe |
| 12/02/2009 | CN201354894Y High-pressure water pipe |
| 12/02/2009 | CN201354893Y Large-diameter plastic wound pipe with a socket |
| 12/02/2009 | CN201354892Y Plastic socket pipe |
| 12/02/2009 | CN201354891Y Plastic wound structural wall pipe |
| 12/02/2009 | CN201354890Y 多功能管道 Multi-function pipeline |
| 12/02/2009 | CN201353898Y Air duct plate and air duct |
| 12/02/2009 | CN101592270A Ultrathin steel-socket prestress longitudinal bar steel-fiber concrete pipe |
| 12/02/2009 | CN101592269A Ultrathin steel-socket prestress steel-cylinder steel-fiber concrete pipe |
| 12/02/2009 | CN101592268A Steel fiber concrete pipe |
| 12/02/2009 | CN101592267A Mixed fiber concrete pipe |
| 12/02/2009 | CN101592266A Fiber concrete pipe |
| 12/02/2009 | CN101592265A Bimetal wear resistant composite tube |
| 12/02/2009 | CN100564981C Reactor main pipe hot leg elbow and method for manufacturing the same |
| 12/02/2009 | CN100564974C Ultrahigh molecular weight polyethylene dead-hard steel wire composite pipeline and manufacture method thereof |
| 12/02/2009 | CN100564804C Anti-deformation culvert pipe with super-section and centripetal stress and preparation process thererof |
| 12/02/2009 | CN100564680C Snow melting panel |
| 12/01/2009 | US7625982 Multimodal polyethylene compositions and pipe made from same |
| 12/01/2009 | US7624762 Facing having increased stiffness for insulation and other applications |
| 11/28/2009 | CA2632406A1 Shiftable fluid diversion conduit |
| 11/27/2009 | CA2666982A1 Line for guiding a medium |
| 11/26/2009 | WO2009112248A3 Method for the production of concrete pipes and concrete pipe system |
| 11/26/2009 | US20090288727 Tube of fabric reinforced pvc |
| 11/25/2009 | CN201351774Y Corrosion resistant steel pipe |
| 11/25/2009 | CN201351773Y Thermoplastic composite pipe |
| 11/25/2009 | CN201351772Y Aluminum-plastic composite pipe |
| 11/25/2009 | CN201351771Y Steel tube with nano glass lining |
| 11/25/2009 | CN201351770Y Thermoplastic heat-insulating tubular product |
| 11/25/2009 | CN201351769Y Special corrosion and wear resistant composite pipeline |
| 11/25/2009 | CN201351768Y Improved structure of gas overlap-connected pipe |
| 11/25/2009 | CN201351767Y Quick assembling sanitary super corrosion-resistant water supply equipment pipe fitting without negative pressure |
| 11/25/2009 | CN201351766Y High-density polyethylene double-walled sylphon bellows with new waveform |
| 11/25/2009 | CN201351765Y Manufacturing equipment of copper water pipe |
| 11/25/2009 | CN101586722A Cement pipe connecting member |
| 11/25/2009 | CN101586718A Precast prestressed concrete pipe gallery with chamfer angle |
| 11/25/2009 | CN101586717A Precast prestressed reinforced concrete pipe gallery with steel cylinder |
| 11/25/2009 | CN101586716A Precast prestressed concrete pipe gallery with steel cylinder |
| 11/25/2009 | CN101586715A Precast prestressed concrete pipe gallery with longitudinal bar |
| 11/25/2009 | CN101586714A Precast prestressed concrete pipe gallery with cylindrical reinforcement frame |
| 11/25/2009 | CN101586713A Precast prestressed concrete pipe gallery |
| 11/25/2009 | CN101586712A Precast concrete pipe gallery with reinforced steel cylinder |
| 11/25/2009 | CN101586711A Precast concrete pipe gallery with steel cylinder |
| 11/25/2009 | CN101586710A Precast concrete pipe gallery with cylindrical reinforcement frame |
| 11/25/2009 | CN101586709A Precast concrete pipe gallery |
| 11/25/2009 | CN101586708A Deep-sea oil gas conveying composition pipe and method for producing the same |
| 11/25/2009 | CN101586707A Heat insulation high-pressure pipe |
| 11/25/2009 | CN101586706A Precast prestressed reinforced concrete pipe gallery with plastic lining |
| 11/25/2009 | CN101586705A Precast prestressed concrete pipe gallery with plastic lining |
| 11/25/2009 | CN101586704A Precast reinforced concrete pipe gallery with plastic lining |
| 11/25/2009 | CN101586703A Precast concrete pipe gallery with plastic lining |
| 11/25/2009 | CN101586702A Combined type composite material pipe and manufacturing method thereof |
| 11/25/2009 | CN101586701A High-low pressure integrated tube and process for manufacturing the same |
| 11/25/2009 | CN101586700A Precast concrete pipe gallery with longitudinal bars |
| 11/25/2009 | CN101586699A Stainless steel tube with welding bevel model, welding method and argon shield apparatus |
| 11/25/2009 | CN101586698A Polymetallic wear-resistant steel tube and fabricating method thereof |
| 11/25/2009 | CN100562681C Steel strip spiral forming glass reinforced plastic mortar pipe production method and its apparatus |
| 11/24/2009 | US7623940 Direct-manufactured duct interconnects |
| 11/24/2009 | US7621884 Tube for medical applications and circuit incorporating such tube |
| 11/24/2009 | US7621570 Pre-expanded connector for expandable downhole tubulars |
| 11/24/2009 | US7621323 Solid expandable tubular members formed from very low carbon steel and method |
| 11/24/2009 | CA2594162C Integrated piping plate, machining method for same, machining apparatus for same, and machining equipment for same |
| 11/22/2009 | CA2666039A1 A tube of fabric reinforced pvc |
| 11/19/2009 | WO2009139974A2 Pressure cast concrete or mortar lined steel pipes and methods of making the same |
| 11/19/2009 | WO2009123929A3 Low friction lining for drip irrigation conduits |
| 11/19/2009 | CA2720118A1 Pressure cast concrete or mortar lined steel pipes and methods of making the same |
| 11/18/2009 | EP2118549A1 Pre-applied protective jacketing construction for pipe and block insulation |
| 11/18/2009 | CN201348118Y Acid-resistant pipeline |
| 11/18/2009 | CN201348099Y Building drainage PE sandwich layer foaming mute pipe |
| 11/18/2009 | CN201348098Y Multi-core pipe |
| 11/18/2009 | CN201348097Y Double-walled reinforcement corrugated tube |
| 11/18/2009 | CN201348096Y Cold resistant and pressure resistant PVC pipe |
| 11/18/2009 | CN201348095Y Special steel anticorrosive pipe for cold transportation of oil field |
| 11/12/2009 | WO2009050100A3 Pipe for conducting liquids, and method of producing the same |
| 11/12/2009 | US20090277526 Insulated double-walled exhaust system component and method of making the same |
| 11/11/2009 | EP2116751A1 Equipment and method for manufacturing steel-plastic composite pipe |
| 11/11/2009 | EP2116750A1 Duct system with control device |
| 11/11/2009 | EP2116625A1 Electric resistance welded steel pipe for line pipe excelling in weld part toughness |
| 11/11/2009 | CN201344718Y High-temperature corrosion-resistant concrete air duct |
| 11/11/2009 | CN201344327Y Multiline threaded connection type glass fiber reinforced plastic (GFRP) heat-insulating direct-buried pipe |
| 11/11/2009 | CN201344324Y Fiber reinforced continuous winding composite pipe |
| 11/11/2009 | CN201344323Y PVC pipe reinforcing structure |
| 11/11/2009 | CN201344322Y Plastic board, concrete pipeline covered by plastic board and plastic board processing device |
| 11/11/2009 | CN201344321Y Heat insulation refrigerant pipe for heat pump and water heater |
| 11/11/2009 | CN201344320Y Bimetal compound tubing |
| 11/11/2009 | CN101576181A Prestressed steel cylinder reinforced concrete pipe with steel socket and spigot |