| Patents for F16L 1 - Laying or reclaiming pipes; Repairing or joining pipes on or under water (7,464) |
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| 08/10/2011 | EP2354329A1 Device for installing irrigation pipes |
| 08/10/2011 | EP2352668A2 Pipelay vessel |
| 08/10/2011 | EP2158654B1 A tubing arrangement for an offshore facility |
| 08/10/2011 | CN201925597U 一种管线下沟器 A pipeline trench under control |
| 08/10/2011 | CN201924264U 一种路面微孔开挖安装与维修系统 One kind of porous pavement excavation system installation and maintenance |
| 08/10/2011 | CN102147033A Non-excavation directional traversing construction method for thermal power pipeline |
| 08/10/2011 | CN101218459B Riser installation from offshore floating production unit |
| 08/09/2011 | US7993078 Method and apparatus for installing an underground pipe |
| 08/09/2011 | US7993077 Towing and subsea installation of long articles |
| 08/09/2011 | US7992632 System for power supply to subsea installations |
| 08/04/2011 | WO2011094172A1 Diverless subsea connection |
| 08/04/2011 | WO2011091564A1 Mud discharging pipe floater |
| 08/04/2011 | US20110188942 Offshore Coiled Tubing Deployment Vessel |
| 08/04/2011 | US20110188941 Apparatus for use in laying pipe on the sea floor |
| 08/04/2011 | US20110188940 Method for the construction of a long pipeline |
| 08/03/2011 | CN201916599U 一种管道锚固稳管装置 Stable anchoring of a piping tube device |
| 08/03/2011 | CN201916598U 一种海底管道止屈装置 Qu means only one kind of submarine pipelines |
| 08/03/2011 | CN201916597U 一种典型水下管汇摆动安装装置 A typical swing underwater manifold mounting device |
| 08/03/2011 | CN201916596U 玻璃钢管道安装器 FRP pipe installer |
| 07/28/2011 | WO2011089479A1 Damage prevention in subsea cables and similar elements during laying or retrieving |
| 07/28/2011 | US20110182671 Marine pipeline installation system and methods |
| 07/28/2011 | DE102010006824B3 Verfahren zur grabenlosen Verlegung von Rohrleitungen Method for grave loose laying of pipelines |
| 07/27/2011 | CN201909111U Lifting and strengthening drive mechanism of tensioner for pipe-laying ship |
| 07/27/2011 | CN201909110U Buckling restraining device for deepwater double-layer submarine pipeline |
| 07/27/2011 | CN201909109U Traction pipe |
| 07/27/2011 | CN102133692A Floating butt-welding device for submarine pipeline |
| 07/27/2011 | CN101701646B Method for slurry-water balance type pipe-pulling construction of underground pipeline |
| 07/26/2011 | US7985036 Process, system and equipment for the towing of underwater pipelines |
| 07/21/2011 | US20110176874 Coiled Tubing Compensation System |
| 07/21/2011 | US20110176383 Method and apparatus for accurate placement of ocean bottom seismic instrumentation |
| 07/21/2011 | DE102010004483B3 Method for introducing new pipe made of plastic into old pipe of pipe line during repair works, involves detaching guide head and drilling rocket from new pipe in target position, and withdrawing rocket for start aperture |
| 07/20/2011 | EP2344796A2 Method for installing an operating rig for a fluid in a body of water with a traction unit |
| 07/20/2011 | CN201902718U Anti-settlement prestressed jacking tube |
| 07/20/2011 | CN201902715U Liner column concrete pipe with prestressed pipe base |
| 07/20/2011 | CN201902693U No-limitation plane sliding pipe bracket |
| 07/20/2011 | CN201902692U Anti-subsidence jacking pipe |
| 07/20/2011 | CN102128311A Method and device for installing typical underwater manifold in swing mode |
| 07/20/2011 | CN102128310A Tunnel pipe distributing machine |
| 07/20/2011 | CN102128309A Non-excavation steel pipe repair technology |
| 07/20/2011 | CN101818829B Construction method of cross-valley overhead pipeline |
| 07/20/2011 | CN101788081B Large diameter pipeline winter construction equipment and method thereof |
| 07/14/2011 | WO2011083340A1 Improvements relating to abandonment and recovery of pipelines |
| 07/14/2011 | WO2011083339A1 Improvements relating to welding and other operations during j-lay pipelaying |
| 07/14/2011 | WO2011083268A1 Assembly for supporting at least one fluid transport pipe through an expanse of water, and associated facility and method |
| 07/13/2011 | EP2342488A2 Method for assembling an operating rig for a fluid in a body of water and associated operating rig |
| 07/07/2011 | WO2011081881A1 Method of positioning a flowpipe on the sea floor using a sacrificial pipe string |
| 07/07/2011 | WO2011080459A1 Device for supporting the connection tip of flexible pipe in an offshore facility |
| 07/07/2011 | WO2011021882A3 Leaking-fluid and pipe-cut sensing device, a production method for the same and a pipe employing the same |
| 07/07/2011 | US20110164925 Method and apparatus for replacing old underground conduits |
| 07/06/2011 | EP2188557B1 Method and apparatus for laying offshore pipeline from a vessel |
| 07/06/2011 | CN201891932U Height adjusting device of marine pipe laying tensioner |
| 07/06/2011 | CN201891931U Hydraulic pipe extractor for pipe-laying ship |
| 06/30/2011 | WO2011077238A1 Laying ramp, laying unit comprising such a laying ramp, and method of operating such a laying unit |
| 06/30/2011 | WO2011077110A1 Method of manufacturing a mechanically lined pipe |
| 06/30/2011 | US20110158748 Apparatus and method for use in laying pipe on the sea floor |
| 06/30/2011 | CA2781586A1 Method of manufacturing a mechanically lined pipe |
| 06/29/2011 | CN201884790U Hydraulic pipeline supporting frame |
| 06/29/2011 | CN102113190A Assembly method for segments of gas-insulated electrical cable to be interconnected and magazine unit for carrying out said method |
| 06/29/2011 | CN102112790A Pipe-laying vessel and method of laying pipeline |
| 06/29/2011 | CN102109065A Trenchless punching equipment and trenchless punching method |
| 06/29/2011 | CN102109064A Pipeline calibration method |
| 06/29/2011 | CN101813215B Integral installation method of hinged pipe-laying device |
| 06/28/2011 | US7967530 Sub-ducting apparatus |
| 06/28/2011 | CA2479961C Systems and methods for pipeline rehabilitation |
| 06/23/2011 | WO2011074126A1 Fluid conveying hose |
| 06/23/2011 | WO2011073669A1 A method of forming a protection system and the protection system |
| 06/23/2011 | WO2011073660A1 Pipeline weld repairing method and apparatus |
| 06/23/2011 | WO2011010130A3 Assemblage and method for undersea laying of pipeline from a ship spool |
| 06/23/2011 | US20110150576 Pipeline connection apparatus and method |
| 06/23/2011 | CA2783895A1 Asset detection apparatus and method |
| 06/22/2011 | EP2334993A1 System and method for geothermal conduit loop in-ground installation and soil penetrating head therefor |
| 06/22/2011 | EP2115338B1 Method for laying pipes in the ground |
| 06/22/2011 | EP1678435B1 Guide tube for a flexible duct for transporting hydrocarbons |
| 06/22/2011 | CN201875283U Prefabricated construction positioning mould of expansive force elbow compensator |
| 06/22/2011 | CN201875282U Pneumatic curve puncher |
| 06/22/2011 | CN101666394B Construction method for pneumatic tamping pipe of horizontal frozen hole on metro bypass |
| 06/21/2011 | US7963721 Distributed buoyancy subsea pipeline apparatus and method |
| 06/21/2011 | CA2408261C Abrasive resistant open cell articulated seabed mat |
| 06/16/2011 | WO2011069847A2 Design method for subsea equipment subject to hydrogen induced stress cracking |
| 06/16/2011 | US20110142543 Method of Using Sacrificial Pipe String |
| 06/15/2011 | EP2331860A2 Method and apparatus for at sea pipe abandonment and recovery |
| 06/15/2011 | EP1907273B1 Cable grippers |
| 06/15/2011 | CN201866407U Seabed PE pipe cast iron counterweight block |
| 06/09/2011 | WO2011067589A1 A method of and a welding station for laying a pipeline, with pipe section welded together by internal and external welding |
| 06/09/2011 | US20110135397 External turret with above water connection point |
| 06/09/2011 | US20110132478 Industrial polyolefin piping system |
| 06/09/2011 | CA2782165A1 A method of and a welding station for laying a pipeline, with pipe section welded together by internal and external welding |
| 06/08/2011 | EP2329179A1 Plugged hot tap tee |
| 06/08/2011 | CN201858429U Frequency conversion and speed regulation motor driven earth pressure balance pipe jacking machine |
| 06/08/2011 | CN101315139B Immersed pipe construction technique of river crossing pipe |
| 06/07/2011 | US7955028 Marine pipelaying system and method for installing an offshore pipeline that includes one or more accessories |
| 06/07/2011 | US7954658 Procedure for descent of equipment to bottom of sea |
| 06/03/2011 | WO2011065863A1 Multisection concrete product and method for the assembly, transportation and trenchless installation thereof |
| 06/01/2011 | EP2327913A1 Floatation device |
| 06/01/2011 | EP2327833A1 Device for protecting an elongated object such as a cable or a pipe |
| 06/01/2011 | EP2326794A1 A offshore seabed to surface conduit transfer system |
| 06/01/2011 | CN201851779U Transition pipe for deviation correction of steel pipe jacking |
| 06/01/2011 | CN201851778U Mechanical pipeline support frame |
| 06/01/2011 | CN201850082U Crawler-type pipe hoist for conveying pipes |
| 06/01/2011 | CN102084166A Marine pipeline installation system and methods |