| Patents for F16L 58 - Protection of pipes or pipe fittings against corrosion or incrustation (5,790) |
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| 05/07/2002 | US6382876 Method of repairing or reinforcing worn-out underground burried drainpipes by resin transfer molding process using both flexible tubes and bagging films |
| 05/02/2002 | DE10123968A1 Transporting pipe for non-pressurized hydraulic or pneumatic transporting of bulk material has externally fitted wear protection layer to replace sector worn by material concentrated at lowest point of pipe on inside |
| 05/01/2002 | CN2489175Y Impressing corrosion-proof cover for pipe screw |
| 04/30/2002 | CA2092830C Method of protecting materials against corrosion as well as an apparatus for carrying out the method |
| 04/25/2002 | US20020047106 Internal wall of high curvature; solid charge comprising sand; binder which sets chemically by reaction with the liquid; liquid being a solution of an alkali metal silicate; plasticizing adjuvants |
| 04/25/2002 | US20020046776 Pipe |
| 04/24/2002 | EP1198526A1 Ensulated pipe |
| 04/24/2002 | CN2487935Y Double-layer corrosion-proof aluminium plastic composite pipe |
| 04/23/2002 | US6374862 Tubing for lining pipes and method for producing the same |
| 04/18/2002 | WO2002030667A1 A method of producing steel pipes having at least two outer layers |
| 04/18/2002 | WO2002030653A2 Method of applying heat activatable covering |
| 04/17/2002 | EP1062456A4 A sheath |
| 04/17/2002 | CN2486807Y Gas transport pipe having resistance reducing and wear resistant inner coating |
| 04/11/2002 | WO2002029307A1 Protective sheath |
| 04/04/2002 | US20020038954 Protected welded joint for fluid transport pipes and its manufacturing process |
| 04/03/2002 | CN1343239A Pipe coatings |
| 03/28/2002 | WO2002025156A2 Lining ducts |
| 03/28/2002 | US20020036405 Pipes, based on polyamide and polyolefin, for gas transmission and/or distribution |
| 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 | CN1081310C Full-automatic internal and external coating method for epoxy resin buried underground pipeline and its production line |
| 03/07/2002 | WO2001057428A3 Method for protecting conduits used for transporting natural gas against internal corrosion |
| 03/06/2002 | EP1066485B1 Composite carbon fibre based armour for flexible pipe |
| 02/28/2002 | WO2001090623A3 Method and apparatus for the maintenance of pipelines |
| 02/27/2002 | CN2479324Y Steel pipe fortransfering thermal medium |
| 02/20/2002 | CN2477931Y Anti-corrosion pipe having chemical nickel plated phosphorus alloy layer for steam condenser |
| 02/14/2002 | US20020017333 Electrostatic charge neutralizing fume duct with continuous carbon fiber |
| 02/13/2002 | EP1028844A4 Metal tubing coated with multiple layers of polymeric materials |
| 02/07/2002 | WO2002010632A1 Flexible protective sleeve |
| 02/07/2002 | DE10035926A1 Verfahren zum Aufbringen einer aus mindestens zwei Komponenten bestehenden Kunststoffschicht A method of applying an existing components of at least two plastic layer |
| 02/06/2002 | CN1078843C Metal tube coated with multiple layer of polymeric material |
| 01/29/2002 | US6341626 Flexible protective sleeve |
| 01/24/2002 | US20020009334 Method of repairing or reinforcing worn-out underground burried drainpipes by resin transfer molding process using both flexible tubes and bagging films |
| 01/23/2002 | EP1174655A1 Protection device for a pipe joint of the bell and spigot type |
| 01/23/2002 | EP1174191A1 Method and apparatus for applying a plastic layer comprising at least two components |
| 01/23/2002 | CN1078332C Nodular cast iron tube with liner of non-calcine ceramic and its manufacture method |
| 01/17/2002 | US20020005223 Corrosion resistant metal tube and process for making the same |
| 01/16/2002 | CN1077970C Threaded joint for metal tubes with internal coating |
| 01/09/2002 | EP1169596A1 Tube clamp insert |
| 01/09/2002 | EP1169400A1 Pipe coatings |
| 01/09/2002 | CN1077672C Partical-reinforced aluminium-base wear-resistant pipe and its preparation |
| 01/08/2002 | US6336983 Method of and apparatus for reinforcing pipe |
| 12/26/2001 | CN1328625A Method of making pipe, and pipe |
| 12/18/2001 | US6331242 Anodic encasement corrosion protection system for underground storage tanks, and metallic components thereof |
| 12/12/2001 | CN2465029Y Corrosion-resistant adheisive tape |
| 12/12/2001 | CN2465018Y All corrosion-resistant steel-plastics combined pipe |
| 12/05/2001 | EP1159561A1 Method of sealing a joint between two pipes |
| 12/05/2001 | EP0805744B1 Hot melt fluidized cladding of innerduct liner |
| 12/05/2001 | CN2463662Y Anti-corrosive steel pipeline lined plastic pipe |
| 12/05/2001 | CN2463661Y Plastic pipe casing for metal pipeline |
| 11/29/2001 | WO2001090623A2 Method and apparatus for the maintenance of pipelines |
| 11/29/2001 | DE10023890A1 High pressure fluid pipe for underground use has thin-walled stainless steel pipe inserted in pipe and with its outer diameter matching inside diameter of high pressure pipe |
| 11/29/2001 | CA2410027A1 Method and apparatus for the maintenance of pipelines |
| 11/28/2001 | CN1324439A Tubing for lining pipes and method for producing the same |
| 11/28/2001 | CN1075615C Coal tar enamel-coated steel pipe and process for same |
| 11/22/2001 | WO2001087584A1 Sleeve for protecting polypropylene-covered pipe comprising bonding agent |
| 11/21/2001 | EP0865325B1 Process for repairing plastic coatings of metal pipes |
| 11/21/2001 | CN2460844Y Water-proof thermal insulation structure for thermal transport pipe network |
| 11/18/2001 | CA2308802A1 Polypropylene-covered article having a secondary covering |
| 11/14/2001 | CN2459510Y Thermo-insulation material for ventilation pipe |
| 11/14/2001 | CN2459509Y Isolation, corrosion-resistant composite pipe |
| 11/13/2001 | US6315004 Electrostatic charge neutralizing fume duct |
| 11/07/2001 | CN1320487A High-pressure gas method for descaling pipeline and protecting pipeline wall |
| 11/06/2001 | US6312024 Threaded assembly of metal tubes designed to contain a corrosive fluid |
| 11/01/2001 | WO2001081814A1 Pipe coupling |
| 11/01/2001 | WO2001081811A1 Nonferrous metal pipe coupling structure |
| 10/31/2001 | CN1073933C Composite anti-corrosion material. |
| 10/30/2001 | CA2042986C Double wall fire proof duct |
| 10/23/2001 | CA2191540C Electrical apparatus for controlling liquid contaminants |
| 10/18/2001 | US20010029990 Heat and corrosion resistant steel pipe having multi-layered coating |
| 10/17/2001 | EP1144895A2 Method for redeveloping or renovating sewer drains and sewer ducts |
| 10/17/2001 | CN1317599A Aluminothermal reaction for preparing liner material of compsite cermamic-steel pipe |
| 10/03/2001 | CN2451864Y Pipeline |
| 10/02/2001 | US6296729 Method of manufacturing pipe liner bag |
| 09/29/2001 | CA2303472A1 Flexible and safe tubing and hoses for connecting indoor and outdoor gaseous fuels (such as natural gas (ng) and lpg) for domestic and industrial applications |
| 09/25/2001 | US6294597 Curable polymeric composition and use in protecting a substrate |
| 09/20/2001 | US20010022934 Lubricating system for thermal medium delivery parts in a gas turbine |
| 09/19/2001 | EP1133653A1 Method of making a pipe, and a pipe |
| 09/19/2001 | CN2449047Y High temp. vapour multi-screen thermal0insulation direct buried thermal power pipe |
| 09/18/2001 | US6291083 Multilayer steel plated product with steel member, nickel plating layer, copper plating layer and zinc nickel plating layer |
| 09/13/2001 | WO2001066991A1 Locally reinforced hollow structures and method for producing same |
| 09/11/2001 | US6286557 Sheath |
| 09/05/2001 | CN1070602C Pipe, pipe-line parts and method for assembling pipe-line parts |
| 08/28/2001 | US6279617 Corrosion-protected metal construction in the form of a pipeline |
| 08/28/2001 | CA2213248C Joining lined pipe items |
| 08/22/2001 | EP1125082A1 Tubing for lining pipes and method for producing the same |
| 08/22/2001 | CN1309015A Process for preparing anticorrosion coating on pipeline |
| 08/21/2001 | US6276401 High temperature composite pipe wrapping system |
| 08/21/2001 | US6276400 Corrosion resistant powder coated metal tube and process for making the same |
| 08/15/2001 | CN2443222Y Modified asphalt corrosion-proof pipe |
| 08/14/2001 | US6273474 Threaded connection for internally clad pipe |
| 08/14/2001 | US6273144 Method for inhibiting external corrosion on an insulated pipeline |
| 08/09/2001 | WO2001057428A2 Method for protecting conduits used for transporting natural gas against internal corrosion |
| 08/09/2001 | DE10004273A1 Protecting steel pipelines from inner corrosion by wet natural gases containing carbon dioxide and/or hydrogen sulfide comprises inserting corrosion protection agent |
| 08/08/2001 | EP1121233A1 Tube internally coated with a cement composition and method for making same |
| 08/02/2001 | WO2001054824A1 Epoxy/polyamide mix for coating metal tubing |
| 07/31/2001 | CA2225464C Internally tin-coated copper pipe and method for coating a copper pipe |
| 07/26/2001 | WO2001053566A1 Corrosion resistant metal tube and process for making the same |
| 07/19/2001 | US20010008665 Metal tubing coated with multiple layers of polymeric materials |
| 07/12/2001 | DE19616326C2 Gegen Korrosion und Abblättern beständige Harzüberzugsstruktur für rostfreie Stahlrohre Against corrosion and peeling resistant resin coating structure for stainless steel pipes |