| Patents for F16L 58 - Protection of pipes or pipe fittings against corrosion or incrustation (5,790) |
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| 01/16/2003 | US20030012907 Embossed thermoplastic polyethylene film is release layer, on which adhesive layer is superimposed, embossed shapes are transferred from the release layer to the adhesive layer, thus preventing air pockets between the laminate |
| 01/16/2003 | US20030012684 Method for inhibiting corrosion using 4-sulfophthalic acid |
| 01/15/2003 | CN1098993C Product for coating internal surface of conduit, method and machine using same and conduit coated with same |
| 01/14/2003 | US6505650 Method for inhibiting corrosion under insulation on the exterior of a structure |
| 01/09/2003 | US20030008577 Buoyancy control systems for tubes |
| 01/03/2003 | WO2003001024A1 High strength metal sucker rod coupling |
| 01/03/2003 | CA2442802A1 High strength metal sucker rod coupling |
| 01/02/2003 | EP1271042A2 Pipe liner and lining method |
| 01/02/2003 | EP1270197A2 Multilayer pipelike product and method for heating the same |
| 12/31/2002 | US6500565 Zinc or zinc/nickel plating on outer surface of metal tube, chromate film composed of a trivalent chromium compound, polyvinyl fluoride or polyvinylidene fluoride film |
| 12/26/2002 | US20020197132 High strength spray metal tubular coupling |
| 12/17/2002 | US6494978 Deteriorated structure repair method for restoring and lining corroded structure |
| 12/12/2002 | US20020185188 Composite tubing |
| 12/05/2002 | US20020182357 Metal tubing coated with foamed polymeric materials |
| 12/03/2002 | US6488998 Pipe wrap for preventing microbiologically influenced corrosion in buried conduits |
| 11/28/2002 | WO2002094922A1 Polyolefin coated steel pipes |
| 11/28/2002 | US20020177128 Variant of LAV viruses |
| 11/27/2002 | EP1260547A1 Polyolefin coated steel pipes |
| 11/27/2002 | CN2522711Y Multilayer heat-insulation corrosion-resisting pipe |
| 11/27/2002 | CN1095022C Threaded connection structure of metal tubes |
| 11/21/2002 | WO2002093059A1 Method for inhibiting external corrosion on an insulated pipeline |
| 11/20/2002 | EP1257763A1 Cathodic protective device for flexible pipes |
| 11/14/2002 | WO2002090817A1 Process for pipe internal anticorrosive and anti-erosive protection by means of squirted plastics and products resulting from this process |
| 11/14/2002 | WO2002090816A1 Multi-layer coated tube and method of manufacturing the coated tube |
| 11/12/2002 | CA2192676C Superimposed coverings having increased stability |
| 11/07/2002 | WO2002088592A1 Multi-layer coating tube and production method therefor |
| 11/07/2002 | WO2002088587A1 Buoyancy control systems for tubes |
| 11/07/2002 | WO2002087869A2 Improved composite tubing |
| 11/06/2002 | EP0870152B1 Method for lining underground pipelines |
| 11/06/2002 | CN1378049A Composite fire-extinguishing water pipe |
| 10/30/2002 | EP1252368A1 Corrosion resistant metal tube and process for making the same |
| 10/30/2002 | CN2519098Y Anti-corrosion and thermal-insulation sealing device for prefabricated insulated pipeline compensator |
| 10/30/2002 | CN2519097Y Anti-corrosion and thermal-insulation sealing device for prefabricated insulated pipeline compensator |
| 10/24/2002 | WO2002084162A1 Threaded joint for steel pipe |
| 10/24/2002 | US20020153161 Protective sheath |
| 10/23/2002 | EP0817938B1 Corrosion protection for steel pipes |
| 10/23/2002 | CN1093014C Technology for making composite cast tube with liner of microcrystal glass |
| 10/22/2002 | US6468001 Method for redeveloping or renovating sewer drains and sewer ducts |
| 10/09/2002 | CN2514639Y Greenhouse frame with anti-corrosive steel pipe |
| 10/08/2002 | US6461703 Polypropylene compositions with a high content of heavy mineral fillers suited for coating metal pipes |
| 10/03/2002 | WO2002030653A3 Method of applying heat activatable covering |
| 10/02/2002 | EP0910482B1 Process for repairing plastic coatings of metal pipes |
| 09/26/2002 | WO2000045962A3 Method and device for treating pipes |
| 09/25/2002 | CN2512977Y Anti-corrosion pipe type acid separating device |
| 09/17/2002 | US6450551 Nonferrous metal pipe coupling structure |
| 09/12/2002 | US20020125324 Electro-optical assembly for image projection, especially in portable instruments |
| 09/11/2002 | CN2511087Y Corrosion-resisting adhesive-resisting electric-heating tube |
| 09/06/2002 | WO2002068854A1 Replaceable corrosion seal for threaded connections |
| 09/06/2002 | WO2002053963A3 Method for inhibiting corrosion under insulation on the exterior of a structure |
| 09/06/2002 | CA2432926A1 Replaceable corrosion seal for threaded connections |
| 08/28/2002 | CN2508083Y Hose for gas meter |
| 08/28/2002 | CN2508082Y Hose for gas cooker |
| 08/27/2002 | US6440245 Method for anticorrosive protection in situ of welding joints and/or of damaged coating areas of metal pipes |
| 08/21/2002 | EP0868272B1 Improved process and equipment for lining concrete pipes |
| 08/21/2002 | EP0707618B1 Method of coating metal pipes with the powder, and use of the coating powder for the single-coat coating of the outside surfaces of metal pipes |
| 08/15/2002 | CA2594164A1 Integrated piping plate, machining method for same, machining apparatus for same, and machining equipment for same |
| 08/14/2002 | EP0811128B1 Method of joining lined pipe items and pipe items joined by this method |
| 08/14/2002 | CN2505681Y Stainless steel composited pipe joint |
| 08/08/2002 | WO2002025156A3 Lining ducts |
| 08/01/2002 | WO2002059519A1 Threaded joint for steel pipe with excellent seizure and corrosion resistances |
| 07/31/2002 | EP0786616B1 Steel pipe joint having high galling resistance and surface treatment method thereof |
| 07/31/2002 | CN1361851A Method of sealing a joint between two pipes |
| 07/31/2002 | CA2683355A1 Robotic apparatus and method for treatment of conduits |
| 07/30/2002 | US6426073 Genetic engineered polypeptides |
| 07/23/2002 | US6422818 Lubricating system for thermal medium delivery parts in a gas turbine |
| 07/23/2002 | US6422609 Fluid joint |
| 07/23/2002 | US6422606 Fluid conducting connector assembly |
| 07/17/2002 | CN2500893Y Nano-antibiotic polypropylene pipe |
| 07/17/2002 | CN2500892Y Protective pipe of glass fibre reinforced plastics |
| 07/11/2002 | WO2002053963A2 Method for inhibiting corrosion under insulation on the exterior of a structure |
| 07/11/2002 | US20020090528 Corrosion resistant resin coating structure in a metal tube |
| 07/10/2002 | CN2499675Y Heavy anti-corrosion steel pipe with solvent-free epoxy inner coating |
| 07/10/2002 | CN2499674Y Anti-paraffin precipitation inner coated thermal insulation pipe |
| 07/10/2002 | CN2499665Y Anti-rust weldable coating thermal insulation pipe |
| 07/10/2002 | CN2499661Y Anti-corrosion thermal insualtion composite pipe |
| 07/04/2002 | US20020083993 Method for inhibiting corrosion under insulation on the exterior of a structure |
| 07/03/2002 | CN2498433Y Multi-shield high temperature pipe |
| 06/20/2002 | WO2000006932A3 Method for redeveloping or renovating sewer drains and sewer ducts |
| 06/20/2002 | EP1144895A3 Method for redeveloping or renovating sewer drains and sewer ducts |
| 06/19/2002 | CN2495886Y Protective, corrosion-proof and thermal-insulation type metal tube (or pipe) materials |
| 06/19/2002 | CN1086456C Metal tube with anti-corrosion, antiscale and anti-wax-precipitation coating and producing method thereof |
| 06/06/2002 | US20020066491 Insulated pipe |
| 06/05/2002 | EP1211451A1 Threaded joint for oil well pipe |
| 06/05/2002 | CN2494363Y Steel pipe with powder zincized layer |
| 06/05/2002 | CN1352365A Method for anti-corrosion for metal pipe line by glass fiber reinforced plastics |
| 06/04/2002 | US6397896 Zn--ni alloy plating layer deposited on the outer surface; polyvinyl fluoride layer formed with an epoxy resin there between; ni-plating layer is further disposed between the outer surface of the steel pipe and the alloy plating layer |
| 06/04/2002 | US6397895 At least three insulation layers formed on the interior including an epoxy, substantially free of phenolics, and ceramic and/or glass |
| 06/04/2002 | CA2243741C High shear pipeline tape |
| 05/30/2002 | US20020063424 Pipe fitting for inside coated pipes and method for its installation |
| 05/28/2002 | CA2055284C Pipe lining method |
| 05/22/2002 | CN1085315C Corrosion proof pipe and its mfg. technology |
| 05/22/2002 | CN1085314C Method for repairing pipelines |
| 05/21/2002 | CA2099411C Process for repairing plastic coatings on metal pipes |
| 05/16/2002 | WO2002039008A1 Cathodic protective device for flexible pipes |
| 05/15/2002 | EP1204711A1 Plug using a composition or pre-mixture based on volatile corrosion inhibitors |
| 05/15/2002 | EP1071904B1 Flexible protective sleeve |
| 05/15/2002 | EP1066450B1 Threaded assembly of metal tubes designed to contain a corrosive fluid |
| 05/15/2002 | CN2491674Y Nano antiseptic plastic tube |
| 05/14/2002 | US6387226 Water circulating in closed conduit; degassing, corrosion resistance |
| 05/08/2002 | DE10055142A1 Protective cap used for drill pipes, conveying pipes or riser pipes in oil and gas drilling on land or offshore is made from material containing corrosion inhibitor in regions facing tube of sleeve thread |