| Patents for F16L 1 - Laying or reclaiming pipes; Repairing or joining pipes on or under water (7,464) |
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| 09/22/1999 | EP0943857A2 Method for cutting in segments a pipe laid in the ground and device for performing the method |
| 09/22/1999 | EP0943065A1 Buoyant device |
| 09/22/1999 | EP0767881B1 Fluid circulation pipe |
| 09/22/1999 | CN2339826Y Underground pipeline marking device |
| 09/16/1999 | WO1999046529A1 Detectable synthetic conduit and connecting means thereof |
| 09/16/1999 | CA2321880A1 Detectable synthetic conduit and connecting means thereof |
| 09/15/1999 | CN2338574Y Self-walk and pneumatic lance type mine life-saving device |
| 09/15/1999 | CN1045124C Method and apparatus for lining pipe with polymer liner |
| 09/10/1999 | WO1999045308A1 Internal pipe pulling device |
| 09/08/1999 | EP0940614A2 Locating strip |
| 09/08/1999 | CN1044993C Apparatus for near vertical laying of pipeline |
| 09/07/1999 | US5947641 Marine pipelaying |
| 09/01/1999 | EP0938964A2 Branch pipe liner bag and branch pipe lining method |
| 09/01/1999 | CN1227521A Protector of pipeline joint |
| 08/31/1999 | US5944449 Non-Abrasive subsea mat |
| 08/31/1999 | US5944447 Underwater pipeline entrenching apparatus and method of using the same |
| 08/19/1999 | CA2230042A1 Improved detectability of buried elongated objects such as pipes, ducts and conduits |
| 08/10/1999 | US5934832 Pipeline recovery apparatus |
| 08/10/1999 | CA2039138C Pipe joint |
| 07/28/1999 | EP0931965A2 Method for laying underwater pipes |
| 07/28/1999 | EP0931639A2 Pipe lining method |
| 07/27/1999 | US5927900 Method for placing a system of ducts |
| 07/27/1999 | CA2260464A1 Pipe lining method |
| 07/21/1999 | CN2329707Y Pipe tamper |
| 07/15/1999 | WO1999035429A1 Device and method for installing conduits at very great depths |
| 07/15/1999 | DE19851170A1 Floating hose |
| 07/13/1999 | US5921713 Method for connecting underwater pipelines particularly suitable for great depths and big diameters |
| 07/13/1999 | US5921707 Method of filling an excavated opening |
| 07/06/1999 | US5919003 Marine pipeline recovery system and method of recovering marine pipeline |
| 07/01/1999 | WO1999032733A1 Method for laying a cable in a trench |
| 06/30/1999 | EP0925466A1 Material and method for lining pipes |
| 06/30/1999 | EP0925410A1 Underground pipe repair |
| 06/23/1999 | EP0923692A1 Device and method for filling a bag with a fluid material and bag suited for this purpose |
| 06/23/1999 | EP0779956B1 Improvements in or relating to pipe-laying |
| 06/23/1999 | CN2325611Y Apparatus for lining pipeline |
| 06/17/1999 | DE19855311A1 Clamping mechanism for repairing a nuclear reactor pressure vessel jet pump-riser system |
| 06/16/1999 | EP0922899A2 Method of repairing an existing pipeline including a primary pipe and a branch pipe |
| 06/16/1999 | EP0921923A1 Protection of pipeline joint connections |
| 06/16/1999 | CN2324359Y Propelling and drilling underground pipeline roughing-in machine |
| 06/15/1999 | CA2183675C Trenchless pipeline installation method with pilot hole corrective alignment |
| 06/15/1999 | CA2172787C Pipe insertion machine and method |
| 06/10/1999 | WO1999028667A1 A pressure balanced subsea tapping machine |
| 06/09/1999 | EP0666960B1 Flexible riser system |
| 06/02/1999 | EP0919458A1 Loading and laying underwater cable |
| 06/02/1999 | CN2322010Y Marking belt for underground pipeline |
| 06/02/1999 | CN1218160A Method of connecting conduits |
| 06/01/1999 | US5909007 Bending restrictor |
| 05/27/1999 | WO1999026006A1 Float for buoyant hoses |
| 05/27/1999 | CA2304690A1 Float for buoyant hoses |
| 05/25/1999 | US5906789 Method of everting a pipe liner bag into a pipeline |
| 05/19/1999 | EP0916058A1 Sealing a clearance between a host pipe and a liner pipe |
| 05/19/1999 | EP0916051A1 Alignment tool |
| 05/18/1999 | US5904185 Under internal pressure |
| 05/11/1999 | US5902072 Modular seismic cable handling system with knockdown container |
| 05/05/1999 | CA2220207A1 Rehabilitation pipe section, pipe joint and method for rehabilating an underground pipe |
| 05/04/1999 | US5900195 Forming an opening on the covering and sealing the covering for form a void; injecting fluid joint filler and solidifying; protects corrosion coating, quick curing, abrasion resistance, mechanical protection; quick installation |
| 05/04/1999 | US5899636 Reversible lining tube for repairing an existing pipeline |
| 04/28/1999 | EP0911568A2 A branch pipe lining assembly and a pipe lining method |
| 04/21/1999 | EP0909254A1 Pipeline storage |
| 04/20/1999 | US5895176 Device for connecting a pipeline conduit to a ground-boring machine |
| 04/20/1999 | US5895175 Pipe-laying device |
| 04/14/1999 | EP0908661A2 Branch pipe liner bag and pipe lining method |
| 04/13/1999 | US5893682 Pipe-laying |
| 04/07/1999 | EP0907002A2 Catenary riser supports |
| 04/06/1999 | CA2249632A1 Branch pipe liner bag and pipe lining method |
| 04/01/1999 | WO1999015824A1 Device for applying an upward force to a body and method of towing a body |
| 04/01/1999 | CA2303865A1 Device for applying an upward force to a body and method of towing a body |
| 03/31/1999 | CN2312393Y Multi-functional apparatus for jointing pipeline |
| 03/31/1999 | CN2312392Y Miniature and multifunction pneumatic machine for laying pipes |
| 03/30/1999 | CA2073796C Vibration isolating sealing clamp for conduit structures |
| 03/25/1999 | WO1999001689A3 Apparatus and method for monitoring the laying of an underwater pipeline |
| 03/24/1999 | EP0812402A4 Tubing end-piece and connector |
| 03/23/1999 | US5884384 Method for installing a tube or a bundle of tubes in an existing tubular duct |
| 03/18/1999 | WO1999013258A1 Self-orienting subsea flowline tapping arrangement |
| 03/18/1999 | DE19754764C1 Drive cylinder for underground pipe tunnel |
| 03/18/1999 | CA2300955A1 Self-orienting subsea flowline tapping arrangement |
| 03/17/1999 | EP0902229A1 Method and arrangement for positioning a branch pipe on an underground pipe from above the ground |
| 03/17/1999 | EP0902129A2 Method and device for laying pipes in the ground |
| 03/16/1999 | CA2137216C Welding chamber |
| 03/11/1999 | DE19802834C1 Method of laying underwater pipes |
| 03/10/1999 | EP0900633A1 Ring pushing pliers |
| 03/10/1999 | EP0900303A1 A method for levelling and filling of ditches, and a device for use in levelling and filling ditches |
| 03/04/1999 | WO1999010674A1 An apparatus and a method for mounting a coherent conduit in a groove in a pipe string |
| 03/04/1999 | DE19737720A1 Fabrication process for underground water pipe with valve etc. |
| 03/03/1999 | EP0792206B1 Method for making a plastic pipe, extrusion die and pipe |
| 03/03/1999 | CN2309363Y Infiltrating irrigation pipeline machine |
| 03/02/1999 | US5876152 Ramming drill for destructive replacement of buried pipelines |
| 02/25/1999 | WO1999009297A1 Process for constructing intake pipe |
| 02/25/1999 | WO1998053176A3 Marine riser |
| 02/17/1999 | CN2307976Y Horizontal directional drilling rig |
| 02/17/1999 | CN2307902Y Horizontal directional drilling rig hydraulic station |
| 02/16/1999 | US5870865 Method for repairing a drainage system |
| 02/10/1999 | EP0656976B1 Excavating and pipe laying machines |
| 02/02/1999 | US5865566 In a floating offshore structure for producing hydrocarbons |
| 01/28/1999 | DE19728209C1 Jig for assembling pipe sections |
| 01/14/1999 | WO1999001689A2 Apparatus and method for monitoring the laying of an underwater pipeline |
| 01/13/1999 | CN2303927Y Multi-function horizontal pipeline boring machine |
| 01/07/1999 | EP0635111B1 Relining pipe |
| 01/07/1999 | CA2242422A1 Portable pulling apparatus |
| 01/07/1999 | CA2209961A1 Apparatus and method for producing an underwater pipeline |