| Patents for F16L 9 - Rigid pipes (18,006) |
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| 08/03/2011 | CN201916606U 一种带有厚壁不锈钢接头的内衬不锈钢复合钢管 Lined with a thick-walled stainless steel fittings with stainless steel composite pipe |
| 08/03/2011 | CN201916605U 一种空调器连接管 An air conditioner connecting tube |
| 08/03/2011 | CN102140234A Preparation method for biomass degradation material and magnetic powder catheter |
| 08/03/2011 | CN102140198A Crosslinkable high pressure polyethylene composition, a process for the preparation thereof, a pipe and a cable prepared thereof |
| 08/03/2011 | CN101532593B Plastic steel winding pipe |
| 08/03/2011 | CN101532592B Environmental protection glass-reinforced plastic pipe and production method thereof |
| 08/02/2011 | US7989028 Continuously manufactured colored metallic products and method of manufacture of such products |
| 08/02/2011 | US7987874 Hose system for high pressure hydraulic system |
| 07/28/2011 | US20110181880 Evaporative Light Scattering Detector |
| 07/28/2011 | US20110180626 Foldable extension pipe, and measuring wheel unit and spraying wheel unit having the same |
| 07/28/2011 | US20110180174 Insulator and exhaust system of internal-combustion engine |
| 07/28/2011 | US20110180173 Tapping Channel for Draining Iron and Metal Melts and Liquid Slags from Metallurgical Containers Such as Blast Furnaces and Melt Furnaces |
| 07/27/2011 | EP1448704B1 Pipe systems of polypropylene compositions |
| 07/27/2011 | CN201909129U Rubber-mat-free hot rotational moulding pipeline |
| 07/27/2011 | CN201909123U Reticular steel bar reinforced type double hollow abnormal steel belt steel-plastic composite pipe material |
| 07/27/2011 | CN201909122U Novel drain pipe wound by steel strip and made of glass fiber reinforced plastics |
| 07/27/2011 | CN201909121U 1*7I notch rib steel strand prestress steel strand cylinder concrete pipe |
| 07/27/2011 | CN201909120U 1*19I notch rib steel stranded wire prestress steel tube concrete pipe |
| 07/27/2011 | CN201909119U Glass fiber reinforced plastic inner lining stainless steel composite pipe with thick wall stainless steel joints |
| 07/27/2011 | CN201909118U Propene polymer (PP) pipe containing nanometer silver |
| 07/27/2011 | CN102134360A Preparation method of super-strong high temperature-resistant chlorinated polyvinyl chloride tubes |
| 07/27/2011 | CN101725774B Mine wear-resistant composite metal plastic pipe, special preparation equipment thereof and preparation method thereof |
| 07/27/2011 | CN101460773B Internally polyolefin coated steel pipe having excellent durability, method for producing the same, and plated steel pipe used for the coated steel pipe |
| 07/26/2011 | US7985447 Process for rotolining the interior surface of an oil pipe |
| 07/26/2011 | CA2545226C An abrasion resistant frac head with a quick-change wear sleeve and method of refurbishing same |
| 07/26/2011 | CA2455736C System for joining sections of composite reinforced line pipe |
| 07/25/2011 | CA2727776A1 Pipe-shaped product with ballistic protection |
| 07/21/2011 | US20110177273 Integrally plastic outlet pipe and making process thereof |
| 07/21/2011 | US20110174415 Method to produce very stiff polypropylene |
| 07/21/2011 | US20110174414 Polyurethane adhesive composition |
| 07/21/2011 | US20110174412 Tubular body and exhaust system |
| 07/21/2011 | US20110174411 System for high pressure injection overmolding |
| 07/21/2011 | US20110174410 fiber-reinforced thermoplastic pipe |
| 07/21/2011 | US20110174378 Water draining pipe and draining method thereof |
| 07/21/2011 | US20110174046 Method for producing a large steel tube |
| 07/21/2011 | US20110173978 Ocean Thermal Energy Conversion Cold Water Pipe |
| 07/21/2011 | DE102010005269A1 Heat exchanger tube, has wall structured in two leg regions, and bottom for connecting leg regions with each other, where wall is not structured in region of bottom, and bottom is connected with outer surfaces of leg regions without seams |
| 07/20/2011 | EP2344797A2 Multi-tubular fluid transfer conduit |
| 07/20/2011 | EP2344585A1 New sewage pipe material with improved properties |
| 07/20/2011 | CN201902764U Pulling, reducing and taking mechanism for inner pipe of composite oil pipe |
| 07/20/2011 | CN201902721U Energy-saving silencing air conditioner duct |
| 07/20/2011 | CN201902720U Silencing water pipe |
| 07/20/2011 | CN201902719U Pipe winding strip structure and plastic-steel wound pipe |
| 07/20/2011 | CN201902718U Anti-settlement prestressed jacking tube |
| 07/20/2011 | CN201902717U Steel bell and spigot reinforced concrete pipe with base pipe |
| 07/20/2011 | CN201902716U Reinforced concrete pipe with prestressed pipe base |
| 07/20/2011 | CN201902715U Liner column concrete pipe with prestressed pipe base |
| 07/20/2011 | CN201902714U Flame-resistant and oxygen-resistant metal composite pipe |
| 07/20/2011 | CN201902713U Novel composite material pipe structure |
| 07/20/2011 | CN201902712U Cross-linked polyethylene pipe with oxygen-blocking layer |
| 07/20/2011 | CN201902711U Water pipe having antibacterial and germicidal functions |
| 07/20/2011 | CN201902710U Composite layer structured nodular graphite cast iron pipe |
| 07/20/2011 | CN201902709U Thin-wall stainless steel pipe |
| 07/20/2011 | CN201902708U Structure for logistic tubes |
| 07/20/2011 | CN201902692U Anti-subsidence jacking pipe |
| 07/20/2011 | CN102128320A Annular rigidity winding structural pipe and formation method thereof |
| 07/20/2011 | CN102128319A Internally and externally plastic-coated steel-plastic composite pipe and production method thereof |
| 07/20/2011 | CN102128318A CPVC plastic-lined steel-plastic composite pipe and production method thereof |
| 07/20/2011 | CN102128317A PE-RT wiremesh framework composite pipe and preparation method and application thereof |
| 07/20/2011 | CN102128316A Heat-resisting polyethylene plastic pipe with high heat conductivity |
| 07/20/2011 | CN102128315A Laminated coextrusion low-pressure water pipe and manufacturing method thereof |
| 07/20/2011 | CN102128314A Polyvinyl chloride drain pipe |
| 07/20/2011 | CN102128313A Air conditioner connecting pipe and processing method |
| 07/20/2011 | CN102128312A Taper pipe for concrete pumping device and manufacturing method thereof |
| 07/20/2011 | CN102127698A Production method of X100 steel grade elbow pipes and pipe fittings |
| 07/20/2011 | CN102127697A Production method of X70 steel grade elbow pipes and pipe fittings |
| 07/20/2011 | CN102127276A Polyvinyl chloride pipe |
| 07/20/2011 | CN102127272A Two-layer co-extruding plastic drainage pipe and preparation method thereof |
| 07/20/2011 | CN102127258A Phosphorous-series flame-retardant master batch special for polyethylene pipe for coal mine |
| 07/20/2011 | CN101592269B Ultrathin steel-socket prestress steel-cylinder steel-fiber concrete pipe |
| 07/20/2011 | CN101531783B Delayed cross-linked type silicane cross-linked polyethylene plastic |
| 07/20/2011 | CN101196260B Multiunit tube of red copper-brass and production technology thereof |
| 07/19/2011 | CA2483506C Composite strip windable to form a helical pipe and method thereof |
| 07/19/2011 | CA2438151C Composite pipe, method of formation, tool to perform method, and use of pipe |
| 07/14/2011 | WO2011083339A1 Improvements relating to welding and other operations during j-lay pipelaying |
| 07/14/2011 | WO2011036312A3 Tubular element of non-conventional inside cross section that increases the flow rate in rainwater-drainage and sanitation pipes |
| 07/14/2011 | US20110168289 Method of connecting piping members and piping members made from polyphenylene ether-based resin composition connected by that method of connection |
| 07/14/2011 | US20110167774 Drain Tube for Gas-Liquid Separation Systems |
| 07/13/2011 | CN201897012U Steel-plastic composite tube |
| 07/13/2011 | CN102121545A Double-wall winding pipe made of high density polyethylene steel strips |
| 07/13/2011 | CN102121544A Process for manufacturing compound air duct sheets |
| 07/12/2011 | US7976753 Method of forming corrugated pipe with a pipe spigot seal seat |
| 07/07/2011 | WO2011081342A2 Corrugated steel pipe |
| 07/07/2011 | US20110162751 Protective Coatings for Petrochemical and Chemical Industry Equipment and Devices |
| 07/06/2011 | EP1940710B8 Elbow pipe and method for producing an elbow pipe |
| 07/06/2011 | CN201891983U Detachable composite ceramic protective sleeve for tubular waste heat boiler |
| 07/06/2011 | CN201891982U Composite ceramic sleeve for shell and tube type waste heat boiler |
| 07/06/2011 | CN201891955U Composite spiral hush pipe |
| 07/06/2011 | CN201891954U Metal reinforcement structured wall plastic tube |
| 07/06/2011 | CN201891953U Lining type steel-plastic composite pipe |
| 07/06/2011 | CN201891952U Heavy-calibre steel-plastic water supply and drainage pipeline |
| 07/06/2011 | CN201891951U Plastic-steel polypropylene composite pipe with foamed insulation layer |
| 07/06/2011 | CN201891950U Bimetallic composite tube |
| 07/06/2011 | CN201891949U ABS (acrylonitrile butadiene styrene) composite tube |
| 07/06/2011 | CN201891948U Foamed co-extrusion polypropylene pipe |
| 07/06/2011 | CN102116395A Wedge type spiral sound reducing pipe |
| 07/06/2011 | CN102116394A Connecting structure of metal insert and plastic body |
| 07/06/2011 | CN102116393A Lining socket joint composite pipe |
| 07/06/2011 | CN102115565A Polyvinyl chloride (PVC) tubular product |
| 07/06/2011 | CN102115557A Polyethylene pipe with negative ion releasing function and manufacturing technology thereof |