| Patents for F16L 9 - Rigid pipes (18,006) |
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| 05/01/2013 | CN103073768A High temperature-resistant ultrahigh molecular weight polyethylene oil field lining pipe |
| 05/01/2013 | CN102516640B Production technology for polypropylene tubing containing beta crystal form |
| 05/01/2013 | CN102226486B CuAl bimetallic composite pipe and die extrusion molding method thereof |
| 04/30/2013 | CA2580956C Helical piping for an olefin production furnace |
| 04/25/2013 | WO2013057734A1 Laminated polyethylene woven fabric pipes |
| 04/25/2013 | US20130098798 Pipe transport system |
| 04/25/2013 | US20130098496 Steel fuel conveying pipe |
| 04/24/2013 | CN202905280U Reinforced type anti-corrosion flat double injectant control composite cable for drilling |
| 04/24/2013 | CN202905279U Reinforced type common flat double injectant control composite cable for drilling |
| 04/24/2013 | CN202901797U Dual-layer circular tube |
| 04/24/2013 | CN202901578U Telescopic pipe used for conveying pulverized coal |
| 04/24/2013 | CN202901577U Hollow silencing PVC (poly vinyl chloride) drain pipe |
| 04/24/2013 | CN202901576U PVC (polyvinyl chloride) drain pipe with spiral ribs on inner wall |
| 04/24/2013 | CN202901575U Five-way oil delivery pipe |
| 04/24/2013 | CN202901574U Dual-way square tube |
| 04/24/2013 | CN202901573U Separating-sewage pipe and matched pipe fittings |
| 04/24/2013 | CN202901572U Structure for forming thin-walled tube |
| 04/24/2013 | CN202901571U Coiled type reinforced plastic composite tube |
| 04/24/2013 | CN202901570U High-strength polyethylene (PE) pipe |
| 04/24/2013 | CN202901569U Impact-resistant high-strength PE (polyethylene) plastic alloy gas pipe |
| 04/24/2013 | CN202901568U High-strength underground water draining pipe |
| 04/24/2013 | CN202901567U Water supply steel pipe |
| 04/24/2013 | CN202901566U Rubber pipe |
| 04/24/2013 | CN202901565U Cellular reinforced composite material glass fiber sand inclusion pipeline |
| 04/24/2013 | CN202901564U Corrosion-resistant concrete composite pipeline |
| 04/24/2013 | CN202901563U Reinforced thermoplastic tube with basalt fibers |
| 04/24/2013 | CN202901562U Anti-penetrating anti-corrosion heat preservation oil and gas gathering and transporting pipeline |
| 04/24/2013 | CN202901561U Weight reduction type delivery pipe used on concrete pump truck cantilever frame |
| 04/24/2013 | CN202901560U Novel nanometer modification glass steel clip sand pipe |
| 04/24/2013 | CN202901559U Polyethylene (PE) water feeding pipe with wear-resisting coating |
| 04/24/2013 | CN202901558U Heat preservation pipe |
| 04/24/2013 | CN202901557U Reinforced seamless stainless steel tube |
| 04/24/2013 | CN202901556U Heat preservation pipe |
| 04/24/2013 | CN202901555U Light composite titanium tube |
| 04/24/2013 | CN202901554U Composite titanium tube with good corrosion resistance |
| 04/24/2013 | CN202901553U Corrosion-resistant stainless steel seamless steel tube for vessel |
| 04/24/2013 | CN202901552U Multifunctional water supply-and-drain pipe |
| 04/24/2013 | CN202901551U Delivery pipe for methane |
| 04/24/2013 | CN202901550U Communication tube |
| 04/24/2013 | CN202900483U Anti-freezing type engine fuel pipe |
| 04/24/2013 | CN202900387U Connection structure for exhaust treatment box and diesel engine of mining rubber-tyred vehicle |
| 04/24/2013 | CN202900364U Oil inlet pipe for engine turbocharger |
| 04/24/2013 | CN202898239U Automatic ignition device for ceramic compound steel tube |
| 04/24/2013 | CN103062523A Curve composite silencing drain pipe |
| 04/24/2013 | CN103062522A Fiber-wrapped glass fiber reinforced plastic mortar pipe |
| 04/24/2013 | CN103062521A Poly ethylene (PE) combined pipe |
| 04/24/2013 | CN103062520A Novel high pressure resistant high-density polyethylene (HDPE) water pipe |
| 04/24/2013 | CN103062519A High strength high-density polyethylene (HDPE) corrugated pipe |
| 04/24/2013 | CN103062518A High-temperature fluid delivery pipe |
| 04/24/2013 | CN103062517A Composite tube |
| 04/24/2013 | CN103062516A Polymer alloy composite cement water supply pipe and manufacture method thereof |
| 04/24/2013 | CN103062515A Nonmetal water supply and drainage composite pipe using ceramsite sand as material of middle enhancement layer |
| 04/24/2013 | CN103062514A Co-extrusion antibiosis tube material and manufacture method thereof |
| 04/24/2013 | CN103060710A Rustproof and heat-resistant cast stainless steel pipe |
| 04/24/2013 | CN103060695A Production method of alloy seamless steel tubes for petroleum refining |
| 04/24/2013 | CN103059532A Plastic pipe machined by using bulk molding compounds |
| 04/24/2013 | CN103059390A Method for preparing halogen-free flame retardant polythene (PE) pipe |
| 04/24/2013 | CN103059389A Environment-friendly flame-retardant antistatic polyethylene pipeline |
| 04/24/2013 | CN103059388A Halogen-free flame retardant polythene (PE) pipe |
| 04/24/2013 | CN103057402A Oil filling pipe assembly of passenger vehicle |
| 04/24/2013 | CN103055585A Spiral punching-type filter central tube |
| 04/23/2013 | CA2575019C Composite tube, method of production for a composite tube and use of a composite tube |
| 04/18/2013 | WO2013053992A1 Pipe structure and exhaust system |
| 04/18/2013 | WO2013053500A1 Metal pipe; use of a metal pipe as a structural component; method for producing a metal pipe; metallic structural component; divertor |
| 04/18/2013 | US20130095313 Method for inhibiting corrosion under insulation on the exterior of a structure |
| 04/18/2013 | US20130092641 Filtration of liquid coolants |
| 04/18/2013 | US20130092280 Electric resistance welded oil country tubular goods and manufacturing method of electric resistance welded oil country tubular goods |
| 04/18/2013 | US20130092279 Coiled tubing with improved fatigue resistance and method of manufacture |
| 04/18/2013 | US20130092278 Apparatus for improving flow between intersecting passageways |
| 04/18/2013 | DE102011115866A1 Metallrohr; Metal tube; Verwendung eines Metallrohrs als Strukturbauteil; Use of a metal pipe as a structural component; Verfahren zum Herstellen eines Metallrohrs; A method of producing a metal tube; metallisches Strukturbauteil; Metal structural member; Divertor Divertor |
| 04/18/2013 | DE102011084528A1 Piping element for exhaust system of combustion engine of motor car, has wall provided axially adjacent to opening over fraction of periphery of element in region with corrugations, where corrugations are designed to axial tossing of region |
| 04/17/2013 | CN202884458U Stainless steel tube |
| 04/17/2013 | CN202884377U Wearing resistant pump pipe |
| 04/17/2013 | CN202884290U Duplex pipe for gas draining and hole sealing by grouting |
| 04/17/2013 | CN202884289U Concrete conveying pipe and concrete pumping device |
| 04/17/2013 | CN202884288U Novel strengthened steel belt polyurethane foaming winding composite pipe |
| 04/17/2013 | CN202884287U Steel belt strengthening poly ethylene (PE) helical bellow |
| 04/17/2013 | CN202884286U Polyethylene winding structure wall pipe with reinforcing inner ribs and reinforcing steel strips |
| 04/17/2013 | CN202884285U Corrugation pipeline with antistatic inflaming retarding anticorrosive coatings on inner wall and outer wall |
| 04/17/2013 | CN202884284U Poly ethylene (PE) compound pipe for mine |
| 04/17/2013 | CN202884283U Metal composite tube |
| 04/17/2013 | CN202884282U Oil inlet pipe for hydraulic system |
| 04/17/2013 | CN202884281U Plastic composite pipe |
| 04/17/2013 | CN202884280U Gas pipe |
| 04/17/2013 | CN202884279U Plastic pipe lined with glass pipe |
| 04/17/2013 | CN202884278U Poly ethylene (PE) double-wall ribbing bellow |
| 04/17/2013 | CN202884277U Polypropylene random (PP-R) antibacterial pipe |
| 04/17/2013 | CN202884276U Structure of water pipe provided with printed patterns |
| 04/17/2013 | CN202884275U Novel stainless steel tube |
| 04/17/2013 | CN202884274U Corrosion resistant stainless steel composite pipe |
| 04/17/2013 | CN202884273U High-temperature resistant metal composite pipe |
| 04/17/2013 | CN202884272U Oil drain pipeline structure of all-casing and full-cycle drilling machine |
| 04/17/2013 | CN202884271U Visible hydraulic and lubrication pipeline |
| 04/17/2013 | CN103047489A Flange-free plastic coated pipeline |
| 04/17/2013 | CN103047488A Deflecting silencing air duct structure |
| 04/17/2013 | CN103047487A Double-hole concentric heat tube |
| 04/17/2013 | CN103047486A Double-orientation fiber-reinforced polypropylene randon copolymer three-layer composite tube |
| 04/17/2013 | CN103047485A Manufacturing method and application scheme for super drain pipes capable of reducing hydraulic resistance |
| 04/17/2013 | CN103047484A Manufacture method for lengthened plastic-coated pipes |
| 04/17/2013 | CN103045897A High-strength corrosion-resistant copper-based alloy pipe for ocean engineering and preparation method thereof |