| Patents for F16L 1 - Laying or reclaiming pipes; Repairing or joining pipes on or under water (7,464) |
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| 05/13/1997 | US5628585 Method and apparatus for removal of utility line and replacement with polyolefin pipe |
| 05/02/1997 | EP0770811A1 Method for lining a pipe |
| 05/01/1997 | WO1997015773A1 Method and apparatus for assembling or disassembling an installation present on a seabed |
| 05/01/1997 | CA2208248A1 Method and apparatus for assembling or disassembling an installation present on a seabed |
| 04/30/1997 | DE19538557A1 Process to replace buried gas or water supply pipes in sections |
| 04/30/1997 | CN1034758C Method for directly burying super-heat steam pipeline |
| 04/29/1997 | US5624207 Ocean bottom cable handling system and method of using same |
| 04/24/1997 | DE19610526C1 Underwater pipeline i.e. steel pipeline, laying method |
| 04/23/1997 | CN2252926Y Load-reducing prefabricated directly buried high temp compound pipe |
| 04/22/1997 | US5622451 Combined apparatus for handling modules and tools and laying of elongated flexible articles from a vessel supported on a body of water |
| 04/16/1997 | EP0768434A1 Installation fitting with telescopic rod |
| 04/16/1997 | EP0767881A1 Fluid circulation pipe |
| 04/16/1997 | CN1147851A Method and apparatus for lining a pipe with a polymer liner |
| 04/03/1997 | DE19542689C1 Cable laying machine for water ditches |
| 04/01/1997 | US5615977 For coupling an offshore platform to a subsea location on a seabed |
| 03/27/1997 | WO1997011299A1 Pipeline weight |
| 03/26/1997 | CN1034363C Digging-free underground pipeline layer |
| 03/20/1997 | WO1997010461A1 Ocean bottom cable handling system |
| 03/12/1997 | EP0762042A1 An apparatus for covering a branch pipe on a pipe |
| 03/12/1997 | EP0762040A1 Apparatus for placing a branch-pipe fitting onto a pipe |
| 03/12/1997 | EP0762039A1 Method of connecting a branch pipe to a main |
| 03/12/1997 | EP0762030A1 Device for thrusting a plastic pipe for the interior lining of metal piping to be renovated |
| 03/12/1997 | EP0760959A1 Amorphous metal tagging system for underground structures |
| 03/12/1997 | EP0584298B1 Elongated housing of large cross-section and its fabrication method |
| 03/06/1997 | WO1997008484A1 Two phase hold down containers for pipelines and related methods |
| 03/06/1997 | DE19532700A1 Protection of underground conductors against accidental damage by workmen |
| 03/05/1997 | CN1144549A Apparatus for drilling open tunnel and drilling method |
| 02/27/1997 | WO1997007359A1 Pipe jointing |
| 02/27/1997 | WO1997001429A3 An extrusion apparatus and method, a tubular product, and a pipe |
| 02/26/1997 | CN2248279Y Magnetic coupling stop valve |
| 02/26/1997 | CN1143725A Method for burying and laying pipeline |
| 02/24/1997 | CA2156778A1 Pipeline anchoring device |
| 02/18/1997 | US5603588 Pipeline weight and method of installing the same |
| 01/21/1997 | CA2111881C Cutting/expanding tool |
| 01/16/1997 | WO1997001429A2 An extrusion apparatus and method, a tubular product, and a pipe |
| 01/16/1997 | CA2233030A1 A tubular product and an extrusion apparatus and method |
| 01/16/1997 | CA2225419A1 An extrusion apparatus and method, a tubular product, and a pipe |
| 01/14/1997 | US5593249 Diverless flowline connection system |
| 01/14/1997 | US5593188 Quick connect tubing connector and method of assembly |
| 01/09/1997 | WO1997001002A1 Method of filling an excavated opening |
| 01/07/1997 | US5590981 Double-containment underground piping system |
| 01/07/1997 | US5590915 Pipelay method and devices |
| 01/07/1997 | US5590689 Method for lining the internal surface of a pipe |
| 01/02/1997 | DE19608087A1 Information display panel for buried pipes and cables |
| 01/02/1997 | DE19522014A1 Method of securing pipelines against vertical movements |
| 12/31/1996 | US5588780 Method and installation for laying a pipe-line |
| 12/25/1996 | CN1138674A Correction device |
| 12/24/1996 | US5586750 Guide type cable engine |
| 12/18/1996 | CN1138370A Apparatus for aligning two members |
| 12/18/1996 | CN1138250A Device for assembly active and passive network nodal points package of communication equipment |
| 12/18/1996 | CN1137956A Pipe clamp system and pipe end processing device using the system |
| 12/17/1996 | US5585725 Magnetic detection of underground pipe using timed-release marking droplets |
| 12/12/1996 | DE19537825C1 Centering appts for welding tube/pipes together |
| 12/12/1996 | DE19520363A1 Laying natural gas or crude oil pipelines in moorland, fell or permafrost ground with geo-lattice network for soil consolidation |
| 12/11/1996 | EP0746665A1 An apparatus for drilling open a tunnel and drilling method |
| 12/11/1996 | CN2242384Y Directly buried type laying transition pipe section |
| 12/05/1996 | WO1996038688A1 Tool, tool system and method for coupling and installing subsea pipelines |
| 12/03/1996 | US5580187 Apparatus for laying and/or retrieving elongate flexible elements |
| 11/28/1996 | DE19544191C1 Renewal process for buried pipelines |
| 11/27/1996 | EP0510077B1 Preventative maintenance system for underwater pipes |
| 11/26/1996 | US5577864 Apparatus relating to the linings of pipelines and passageways |
| 11/26/1996 | US5577788 Pipe pulling device |
| 11/26/1996 | US5577535 Method and equipment for the repair of the outer layer of submarine flexible pipings |
| 11/26/1996 | CA2034086C Floating aerator arrangement |
| 11/19/1996 | US5575590 Installation for laying a pipeline on a floor located under water, bearing means and terminal |
| 11/14/1996 | WO1996035902A1 Improvements in or relating to marine pipelaying |
| 11/12/1996 | US5573353 Vertical reel pipe laying vessel |
| 11/12/1996 | US5573280 Tubing end-piece and connector |
| 11/12/1996 | US5573229 Fixture for aligning and clamping pipes |
| 11/06/1996 | CN2239555Y Pneumatic pipe tamping machine |
| 10/31/1996 | WO1996034225A1 Method and apparatus for removal of utility line and replacement with polyolefin pipe |
| 10/30/1996 | EP0740099A1 Adjusting device |
| 10/30/1996 | EP0739467A1 Apparatus for aligning two members |
| 10/22/1996 | US5567083 Double-containment underground piping system |
| 10/22/1996 | US5567076 Method of positioning a pipeline across a water-course |
| 10/09/1996 | CN2237163Y Multifunctional underground hole making machine |
| 10/03/1996 | WO1996030690A1 Process and device for pulling a pipe laid or to be laid in the ground |
| 10/03/1996 | WO1996030686A1 Apparatus for handling elongate members |
| 10/03/1996 | CA2215169A1 Process and device for pulling a pipe laid or to be laid in the ground |
| 10/02/1996 | EP0735303A1 Process for laying underground pipes between control chambers |
| 10/02/1996 | EP0735231A2 Device for driving pipes, for enlarging pilot boreholes or for replacement of buried pipelines |
| 10/02/1996 | DE19513181A1 Verfahren und Vorrichtung zum Ziehen eines im Erdreich verlegten oder zu verlegenden Rohres Method and device for pulling a laid in the ground or pipe to be laid |
| 10/02/1996 | CN2236588Y Self moving hydraulic apparatus for pipe ejecting under road surface |
| 10/01/1996 | US5560091 Apparatus for aligning pipe flanges |
| 09/26/1996 | WO1996029532A1 Method for connecting underwater pipelines particularly suitable for great depths and big diameters |
| 09/26/1996 | CA2216108A1 Method for connecting underwater pipelines particularly suitable for great depths and big diameters |
| 09/25/1996 | EP0733843A1 Method for connecting underwater pipelines particularly suitable for great depths and big diameters |
| 09/25/1996 | EP0710340A4 Plastic profiled strip forming helically wound tube using hinged flap for jointing |
| 09/17/1996 | CA2051166C Abandonment of a branch main |
| 09/12/1996 | WO1996027751A1 Laying underwater pipeline |
| 09/11/1996 | EP0731252A2 Boring ram for the destructive replacement of a buried pipe |
| 09/10/1996 | US5553971 Double-containment underground piping system |
| 09/06/1996 | WO1996027097A1 Tubing end-piece and connector |
| 09/04/1996 | EP0729555A1 Improved guided mole |
| 08/29/1996 | WO1996026383A1 Method and apparatus for installing pipes |
| 08/28/1996 | EP0728983A1 Method and apparatus for installing pipes |
| 08/28/1996 | EP0728974A1 Buried pipe laying method |
| 08/28/1996 | EP0728873A1 Sheltering device for active and passive connection components of telecommunication equipment |
| 08/27/1996 | US5549417 Subsea pipeline shroud |
| 08/23/1996 | CA2169899A1 Device for housing the active and passive junction assemblies of telecommunications installations |