| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
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| 08/03/2011 | CN201915824U 一种兼具地下连续墙施工功能的汽车旋挖钻机 Underground continuous wall construction that is both functional car rotary drilling rig |
| 08/03/2011 | CN201915439U 水池清洁器 Pool Cleaner |
| 08/03/2011 | CN201915438U 一种自航耙吸挖泥船的顺水施工系统 A self-trailing suction hopper dredger of sailing Construction System |
| 08/03/2011 | CN201915437U 测井清淤器 Logging dredging device |
| 08/03/2011 | CN201915436U 挖河底污泥船清理网 Dug river boat to clean sludge network |
| 08/03/2011 | CN102140810A Synchronous trenching machine |
| 08/03/2011 | CN102140809A Gas-lift saw type trenching machine |
| 08/03/2011 | CN101845835B Cutter-suction packing pumping method for cleaning contaminated sediments in river |
| 08/03/2011 | CN101768986B Jet pipe used for dredging below hydraulic underwater horizontal gate and application method thereof |
| 08/03/2011 | CN101617086B Excavator for underground continuous wall |
| 07/28/2011 | WO2011088486A1 Method and device for introducing a pipe for optical cables into a solid laying foundation |
| 07/27/2011 | EP2347055A1 Improvements in or relating to fluid jets |
| 07/27/2011 | CN201908326U Mud cylinder of abrasion-free mud sucker |
| 07/27/2011 | CN102134866A Gas lift double-shaft slot forming machine |
| 07/27/2011 | CN102134865A Gas-lifting coaxial counter-rotating straight slotting machine |
| 07/27/2011 | CN102134864A Gas lift double-shaft straight slot forming machine |
| 07/26/2011 | US7984574 Construction vehicle with rear object detection |
| 07/20/2011 | CN201901890U Two-way deviation-rectifying device and two-way deviation-rectifying thin-wall grab bucket |
| 07/14/2011 | WO2011084669A2 Permanent magnet direct drive drawworks |
| 07/13/2011 | EP2342384A1 Deep sea mining riser and lift system |
| 07/13/2011 | CN201896577U Wire pole pit boring machine |
| 07/13/2011 | CN201896309U Crushing type grating trash remover |
| 07/13/2011 | CN102124164A Method for delivering large quantities of under water soil to a reclamation area |
| 07/13/2011 | CN102121449A Hydrodynamic machine, and using method and application thereof |
| 07/13/2011 | CN102121257A Telescopic-ferrule construction carrier and construction method thereof |
| 07/13/2011 | CN102121256A Suction sludge dewatering sand dredger |
| 07/13/2011 | CN102121255A Vehicle-mounted mobile sewer dredging device |
| 07/13/2011 | CN101619573B Machine for forming underground continuous water-retaining walls by one step |
| 07/13/2011 | CN101058983B Excavation device |
| 07/12/2011 | US7976243 Methods and apparatus for installing conduit underground |
| 07/06/2011 | CN201891141U Valve core integrated with fixed screw nut and hydraulic oil control unit |
| 06/29/2011 | CN201883464U Rescue vehicle |
| 06/29/2011 | CN201883463U Cutter suction head of dredger |
| 06/29/2011 | CN102108719A Single-cylinder cross pole pore forming machine |
| 06/29/2011 | CN102108718A Oscillating drill for trench saw |
| 06/29/2011 | CN102108708A Compound anchor rod foundation pit building envelope, construction method thereof and adopted cement soil notcher |
| 06/29/2011 | CN101775798B Piling device and piling method of dry soil withdrawal meshing type rectangular injecting pile |
| 06/29/2011 | CN101713201B Underground hole-forming device of hydraulic grab bucket |
| 06/29/2011 | CN101194073B Trencher guidance via GPS |
| 06/22/2011 | EP2115338B1 Method for laying pipes in the ground |
| 06/22/2011 | CN201874449U Suspended pneumatic drill for excavator |
| 06/22/2011 | CN201874026U Sand fetching and silt cleaning device |
| 06/22/2011 | CN201874025U Jetting type embedded plough for paving composite hoses in shallow sea |
| 06/22/2011 | CN201874024U Ditching machine for digging trapezoidal ditch |
| 06/22/2011 | CN201874022U Runner-type seabed leveling device |
| 06/22/2011 | CN201873990U Dry soil-withdrawing engaged rectangle cast-in-place pile piling device |
| 06/22/2011 | CN102102372A Four-saw knife cross pile pore-forming machine |
| 06/16/2011 | WO2011069207A1 A ripper boot including a male carrier and a replaceable female tooth |
| 06/16/2011 | US20110142544 Plow apparatus for laying underground cable |
| 06/16/2011 | CA2781739A1 A ripper boot including a male carrier and a replaceable female tooth |
| 06/15/2011 | EP2333164A2 Device for burying slender elements, such as cables, pipes, ropes, chains, ducts and the like |
| 06/15/2011 | EP2331754A1 Method and system for laying underground a continous elongated member in a bed of a body of water. |
| 06/15/2011 | CN201865706U Adjustable coal slime clearing machine |
| 06/15/2011 | CN201865136U Movable crusher |
| 06/15/2011 | CN201865135U Plough ground anchor device of grab pipe machine of well drilling operation site |
| 06/15/2011 | CN201865134U Salt lake drilling grooving machine |
| 06/15/2011 | CN201865133U Fishpond silt remover |
| 06/15/2011 | CN201865112U Cleaning machine for tubular pile |
| 06/15/2011 | CN1827922B Screen type dust cleaner for coarse particles and dust |
| 06/15/2011 | CN102094440A Four-cylinder cross pile hole-making machine |
| 06/15/2011 | CN102094439A Frame of vertical trenching machine |
| 06/15/2011 | CN102094438A Four-wheel double-suction groover |
| 06/15/2011 | CN102094437A Chain type trenching machine |
| 06/15/2011 | CN102094436A Chain track saw grooving machine |
| 06/15/2011 | CN102094435A Multi-circular saw grooving machine |
| 06/15/2011 | CN101538873B Environment-friendly dredger dredging reamer |
| 06/09/2011 | WO2011067583A1 Improvements to soil and/or rock conditioning machines |
| 06/08/2011 | CN201857628U Device applied to pump dredger to play functions of adjustment, control and fixation |
| 06/08/2011 | CN201857627U Silt collecting box applied to silt pumping machine |
| 06/08/2011 | CN1928262B Trench wall cutting structure |
| 06/08/2011 | CN102089479A A gripping organ for load-moving vehicles |
| 06/08/2011 | CN101705704B Telescopic mechanism of wetland excavator walking device |
| 06/08/2011 | CN101603300B Hydraulic trash remover for bottom grid diversion dam of power station |
| 06/01/2011 | CN201854002U Underground optical cable laying machine |
| 06/01/2011 | CN201850573U Mechanical hydraulic breaking hammer |
| 06/01/2011 | CN201850572U Bed-sweeping device for dredger |
| 06/01/2011 | CN201850571U Continuous cable or pipeline ditching machine |
| 06/01/2011 | CN201850569U Engineering machinery for digging and modifying |
| 06/01/2011 | CN101463613B Control system and control method for trailing suction hopper dredger active drag head |
| 05/26/2011 | WO2011061605A1 Digging method and assembly for laying a pipeline in the bed of a body of water |
| 05/25/2011 | CN201843159U Movable grab sewage disposal apparatus |
| 05/25/2011 | CN102071714A Method and device for controlling expansion of hydraulic circuit of excavator |
| 05/25/2011 | CN102071713A Waterway dredging and clean drinking water project construction ship |
| 05/25/2011 | CN102071712A Gas lift single-shaft straight groove forming machine |
| 05/25/2011 | CN102071680A Pore-forming machine of airlift eight-shaft cross pile |
| 05/25/2011 | CN102069049A Self-excitation aspiration pulse jet nozzle |
| 05/25/2011 | CN101245589B Method for harnessing river and reservoir with sand stirring boat and liftable low water head dam |
| 05/24/2011 | US7949449 Constant work tool angle control |
| 05/18/2011 | EP2322728A2 Backhoe dredger for dredging soil material under water |
| 05/18/2011 | CN201835308U Hydraulic water sump cleaner |
| 05/18/2011 | CN201835307U Equipment for stirring and blowing sand in river channel |
| 05/18/2011 | CN102061718A Coaxial counter-rotating vertical type grooving machine |
| 05/18/2011 | CN102061717A Coaxial counter-rotating inclined type grooving machine |
| 05/18/2011 | CN101507384B Cutter-head of machine for making furrows |
| 05/11/2011 | CN201826341U Intelligent submerged silt remover |
| 05/11/2011 | CN201826245U Hydraulic vibrating rammer |
| 05/10/2011 | US7937859 Wheeled load transfer device |
| 05/10/2011 | US7937857 Ground-working machine |
| 05/04/2011 | EP2317016A2 Underwater excavation apparatus |
| 05/04/2011 | CN201817836U Ship type bottom sealing system of dredging and excavating machine |