| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
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| 01/15/2014 | CN103508334A Crane boom support for grab bucket trenching machines |
| 01/10/2014 | CA2819960A1 Cutting wheel for a trench cutter |
| 01/08/2014 | EP2682528A2 Device and method for dredging bed material under water |
| 01/08/2014 | CN203383255U Optical fiber burying machine |
| 01/08/2014 | CN203383254U Soft saw for hill cutting saw |
| 01/08/2014 | CN103502538A Apparatus and method for the dredging of sediments from the seabed |
| 01/07/2014 | US8626401 Cultivation system and a subsoil tool |
| 01/03/2014 | WO2014003551A1 Vessel for forming a trench in a water bottom |
| 01/01/2014 | CN203373796U Hydraulic system of slot milling machine |
| 01/01/2014 | CN203373795U Grab bucket of diaphragm retaining wall trenching machine |
| 01/01/2014 | CN203373794U Rotating type channel ditching machine |
| 01/01/2014 | CN103485383A Quartering hammer system and control method thereof |
| 01/01/2014 | CN103485382A Slot milling machine front end cutting box |
| 12/31/2013 | US8620533 Systems, methods, and devices for controlling a movement of a dipper |
| 12/26/2013 | US20130340298 Dredging Head Apparatus |
| 12/25/2013 | EP2675954A1 Apparatus and method for the dredging of sediments from the seabed |
| 12/25/2013 | CN203367891U Cutter head of ditching machine |
| 12/25/2013 | CN203361227U Novel knapping assembly of hydraulic knapper |
| 12/25/2013 | CN203361226U Silt discharging device for water conservancy project |
| 12/25/2013 | CN203361225U Sludge cleaning device |
| 12/25/2013 | CN203361224U Steel brush attached to hydraulic grab |
| 12/25/2013 | CN203361223U Rapid-connection grabbing rod type methane tank drawing-out clearing machine |
| 12/25/2013 | CN203358828U Fishing and dredging dual-purpose fishing boat |
| 12/25/2013 | CN103476996A Local dust extraction system for an excavation machine |
| 12/25/2013 | CN103469840A 破碎锤系统 Hammer system |
| 12/25/2013 | CN103469839A Self-propelled raft channel cleanout device |
| 12/18/2013 | EP2357287B1 Work vehicle with at least one attachable frame |
| 12/18/2013 | CN203346942U Dredging system of excavated basin |
| 12/18/2013 | CN203346941U Novel dredging equipment |
| 12/18/2013 | CN203346940U Portable continuing-assembling electric pole hole pit digging tool |
| 12/18/2013 | CN203346939U Crankshaft trencher |
| 12/18/2013 | CN203346938U Groove sawing machine with multi-steels |
| 12/18/2013 | CN203346937U Foundation pit excavation system based on four-axis all-electrical-drive geotechnical centrifuge robot |
| 12/18/2013 | CN203346935U Dredge pump carrying mobile ship |
| 12/18/2013 | CN203346848U City watercourse revetment greening ecological zone |
| 12/18/2013 | CN103459724A Vessel |
| 12/18/2013 | CN103452158A Cylinder hydraulic loss preventing device of hydraulic breaker |
| 12/18/2013 | CN103452157A Damage prevention system of dredging construction foundation trench bed surface |
| 12/18/2013 | CN103452156A Pore forming machine for rectangular cast-in-place concrete piles |
| 12/18/2013 | CN103452155A Double-shaft-end electric trencher |
| 12/18/2013 | CN103452152A Diving step-type trencher |
| 12/18/2013 | CN103448879A Solar-powered comprehensive watercourse treatment device |
| 12/18/2013 | CN102587829B Drilling tool and piling machine |
| 12/11/2013 | EP2670921A1 Suction head for a dredging vessel and method for dredging using said suction head |
| 12/11/2013 | CN203334338U Bulldozer scarifier |
| 12/11/2013 | CN203334337U High-frequency vibration hammer crusher |
| 12/11/2013 | CN203334336U Brushing head of underwater brushing robot |
| 12/11/2013 | CN203334335U Large depth coarse sand soil embankment foundation vertical spreading membrane seepage cutoff grooving machine structure |
| 12/11/2013 | CN203334327U Reciprocating impact excavation loader |
| 12/11/2013 | CN103441454A Tool bit of ditcher |
| 12/11/2013 | CN103437341A Effective grooving construction method for underground continuous wall in slightly-weathered limestone with overlying sandy soil |
| 12/04/2013 | CN203320599U 推土机松土器 Bulldozer ripper |
| 12/04/2013 | CN203320598U River way sewage dredging device |
| 12/04/2013 | CN203320597U Boat type underwater-moving silt remover |
| 12/04/2013 | CN203320596U X-shaped pile-forming machine |
| 12/04/2013 | CN203320595U X concrete pile hole drilling machine |
| 12/04/2013 | CN203320594U Y-shaped perforating machine |
| 12/04/2013 | CN203320593U Dual-motor trenching machine |
| 12/04/2013 | CN203320592U Crescent knife slotting machine |
| 12/04/2013 | CN203320591U Double-drill groove cutting machine |
| 12/04/2013 | CN103422855A Hydraulic hammer drill rod |
| 12/04/2013 | CN103422523A 抓斗体以及连续墙液压抓斗 Grab body and hydraulic diaphragm wall grab |
| 12/04/2013 | CN102146689B Gas-lift four-axis cross pile pore-forming machine |
| 12/03/2013 | US8596916 Apparatus for installing conduit underground |
| 11/28/2013 | US20130312733 Ground Excavation Preparation System |
| 11/27/2013 | EP2666557A1 Method for the treatment of flow sediments and water vehicle for carrying out the same |
| 11/27/2013 | CN203307862U Internal combustion engine breaker |
| 11/27/2013 | CN203307861U Pit slot digging device for narrow and shallow project |
| 11/27/2013 | CN203307188U Polluted bottom mud treatment device |
| 11/27/2013 | CN103410186A Underwater crusher |
| 11/27/2013 | CN103410185A Siphoning type reservoir desilting and screening device and use method thereof |
| 11/21/2013 | WO2013171740A1 A mobile apparatus for deployment and displacement of drip irrigation lines |
| 11/20/2013 | EP2663436A1 A saw blade, a sawing machine and a system thereof |
| 11/20/2013 | CN203296098U Electric breaking hammer |
| 11/20/2013 | CN203296097U Underwater silt remover for circulating water pool |
| 11/20/2013 | CN203296096U Dirt grabbing mechanical arm |
| 11/20/2013 | CN203296095U Double-wheel milling machine frame for swinging cutting device with double-kinetic-energy driving effect |
| 11/20/2013 | CN103397676A Optical cable spreading burying machine |
| 11/20/2013 | CN103397675A Elliptical ditching machine |
| 11/20/2013 | CN103397674A Double-drive drilling machine |
| 11/20/2013 | CN103397673A Double circulation trenching machine |
| 11/20/2013 | CN102505720B Pulse energy-storage type waterpower dredging system |
| 11/19/2013 | DE202013009579U1 Grabgefäß, insbesondere Baggerlöffel, und Arbeitsgerät, insbesondere Bagger, mit demselben Grave vessel, in particular excavator buckets and tool, in particular excavators, with the same |
| 11/14/2013 | WO2013169246A1 Trench shoring apparatuses |
| 11/14/2013 | WO2013169200A1 Method for placement of ducts/cables and device for planning placement thereof |
| 11/14/2013 | WO2013169199A1 Machine for sawing trenches and placing ducts/cables |
| 11/14/2013 | WO2013167910A1 Manipulating trenching apparatus and method |
| 11/13/2013 | CN203284824U Cutting tooth assembly for swing device of double-wheel mill |
| 11/13/2013 | CN203284823U Milling wheel support with chain type cutting device swinging in reciprocating mode |
| 11/13/2013 | CN103388345A Reciprocating impact heading and loading machine |
| 11/07/2013 | US20130294839 Method for placing at least one duct/communication cable below a road surface in an area |
| 11/06/2013 | EP2659558A1 Method for placing at least one duct/communication cable below a road surface in an area |
| 11/06/2013 | EP2658696A1 Control method and system for a sawing machine |
| 11/06/2013 | CN203270650U 液压破碎锤 Hydraulic breaker |
| 11/06/2013 | CN203270649U Punch hammer equipment used for construction in bed rocks |
| 11/06/2013 | CN203270648U Quartering hammer |
| 11/06/2013 | CN203270647U Pile hole drilling device |
| 11/06/2013 | CN203270646U Additional shovel blade device for trenching machine |
| 11/06/2013 | CN203270645U Protecting mechanism of slot milling machine |
| 11/06/2013 | CN203270644U Deviation rectifying mechanisms of slot milling machine |