| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
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| 03/11/2003 | US6530723 Device and process for excavating and backfilling of soil |
| 03/11/2003 | CA2357170A1 Articulated boom for hydro-excavation vehicle |
| 03/06/2003 | US20030042785 Trencher with foldable rock saw wheel |
| 03/06/2003 | US20030041487 Excavation apparatus |
| 03/06/2003 | US20030041485 Control of excavation apparatus |
| 03/06/2003 | US20030041483 Dredging and scouring |
| 03/06/2003 | US20030041482 Excavating tool and method for excavating rock, minerals and the like |
| 03/06/2003 | CA2401463A1 Excavating tools for releasing rock, minerals and the like layer by layer, in milling fashion |
| 03/05/2003 | EP1288377A1 Control of an excavation apparatus |
| 03/05/2003 | EP1288376A2 Excavation apparatus |
| 02/27/2003 | US20030039509 Apparatus for laying pipeline |
| 02/27/2003 | US20030037938 Vibratory impactor |
| 02/27/2003 | US20030037464 Drilling apparatus for hard ground |
| 02/27/2003 | DE10139259C1 Sludge extraction from bodies of water, and especially harbor basins, uses a housing rammed into the sludge to form an enclosed space, which is flushed to break down the sludge for extraction by a suction pump |
| 02/26/2003 | EP0646213B2 Process and tool for laying underground collector mains for liquids and gases |
| 02/26/2003 | CN1102189C Automatic dredging machine for river |
| 02/25/2003 | CA2303960C Hitch control system with adjustable slip response |
| 02/24/2003 | CA2356463A1 Apparatus for laying pipeline |
| 02/20/2003 | DE20218914U1 Grave excavator for use in cemeteries, has drive device with hydraulic motor for driving shaft with wheels at both ends |
| 02/19/2003 | EP1119663B1 Tubular structure |
| 02/12/2003 | CN1101507C Machine for performing work on land and/or in water |
| 02/11/2003 | US6517294 Apparatus for installing a silt fence |
| 02/11/2003 | US6517287 Method for removing contaminants from dredge material in an underwater environment |
| 02/11/2003 | US6517164 Hammer-ripper excavating system |
| 02/11/2003 | US6516545 Combination trencher and vehicle |
| 02/11/2003 | US6516542 Tilling machine, method of use and method of gardening |
| 02/06/2003 | WO2003010388A1 Method and apparatus for cleaning a water area |
| 02/06/2003 | WO2001032503A3 Method and device for moving subsea rocks and sediments |
| 02/06/2003 | CA2454474A1 Method and apparatus for cleaning a water area |
| 02/05/2003 | EP1281816A2 Excavator data acquisition and control system and process |
| 01/28/2003 | US6511260 Plow for installing utility lines |
| 01/23/2003 | WO2002002399A9 Device on a subsea vehicle |
| 01/23/2003 | US20030017113 Spray dried particles having specified aerodynamic characteristics are produced by atomizing a liquid feed and contacting the liquid feed with a drying gas, such as, for example, air or nitrogen. |
| 01/23/2003 | US20030014887 Winch attachment for backhoe machines |
| 01/23/2003 | US20030014885 Material separating apparatus and method for using same |
| 01/23/2003 | DE20211185U1 Cross-country chassis has skids that can be connected to chassis instead of or below roller devices or can be deployed to extend suitability of chassis provided for solid ground to wet ground |
| 01/22/2003 | EP1277889A1 All-terrain underframe |
| 01/21/2003 | US6508608 Material treatment method and apparatus |
| 01/09/2003 | US20030006071 Apparatus and method for horizontal drilling |
| 01/09/2003 | DE19781515C1 Vorrichtung zum Zerkleinern und Mischen von Bodenmaterial Apparatus for grinding and mixing of soil material |
| 01/08/2003 | EP1273411A2 Activation device for cutting head on hydraulic tool support |
| 01/07/2003 | US6502333 Pipeline padding machine and method |
| 01/02/2003 | US20030000114 Material distribution vessel and method for distributing material recovered in a dredging operation |
| 01/01/2003 | CN2528806Y Machinery for dredging trenche |
| 12/31/2002 | US6499239 Method for extracting and grading sand |
| 12/26/2002 | US20020195869 Single arm support apparatus for a rockwheel |
| 12/25/2002 | CN1387600A Device and method for moving subsea rocks and sediments |
| 12/24/2002 | US6497535 Material distribution vessel and method for distributing material recovered in a dredging operation |
| 12/19/2002 | US20020192029 Apparatus for installing a silt fence |
| 12/18/2002 | EP1267002A1 Mobile device for the screening, the separation, the breaking, the disintegration and/or the mixing |
| 12/18/2002 | EP1266098A1 Material separating apparatus and method for using same |
| 12/17/2002 | US6494437 Boom mounted winch |
| 12/12/2002 | WO2002099244A1 Apparatus for drilling a kerf |
| 12/12/2002 | WO2002099203A1 Method of drilling a tubular slot |
| 12/12/2002 | US20020184797 Device for removing sludge from the bottom of a lagoon |
| 12/11/2002 | EP1264049A1 Drilling apparatus for hard ground |
| 12/11/2002 | EP1264048A1 Drilling apparatus for hard ground |
| 11/28/2002 | WO2002095145A1 Construction equipment for excavating and preparing wearing courses, earth or rocky subgrade |
| 11/28/2002 | WO2002095144A1 Excavation device comprising a suction unit |
| 11/27/2002 | EP0830522B1 Excavator data acquisition and control system and process |
| 11/27/2002 | CN1095012C Operation control system of digging machine for cement wall groover |
| 11/19/2002 | US6481326 Cutting assembly and related apparatuses |
| 11/14/2002 | WO2002090667A1 Apparatus for and method of propelling fluid |
| 11/12/2002 | US6478508 Apparatus for laying underground electric cables |
| 11/12/2002 | US6477795 Excavator data acquisition and control system and process |
| 11/07/2002 | US20020162252 Trenching equipment |
| 11/05/2002 | US6474909 Fluid assisted ground wedging device |
| 10/31/2002 | WO2002085326A2 Large, porous particles produced controlling humidity during a spray drying process |
| 10/31/2002 | US20020157285 Forward impacted plow for trenchers |
| 10/31/2002 | DE10119857C1 Cargo ship used as suction dredger for transporting rocks and ores comprises goods chambers in ship body, longitudinal drive bodies, side suction pipe, and pump |
| 10/30/2002 | EP1053372B1 Machine for displacing grindstones |
| 10/29/2002 | US6470607 Excavating method for constructing underground walls |
| 10/23/2002 | EP1119665A4 Excavation assembly, apparatus and method of operating the same |
| 10/23/2002 | CN2517789Y Underground narrow deep groove groover |
| 10/22/2002 | US6467201 Trench-cutting machine with cutting head lock mechanism |
| 10/22/2002 | US6467200 Shoe mechanism for an excavating wheel and associated method |
| 10/16/2002 | CN1374438A Well drilling machine with shocking, grabbing, spading, planing and drilling heads |
| 10/10/2002 | DE10115456A1 Laying arrangement for laying flexible line material (cable, pipe) in ground has displacement device engaging round leading prow section of insertion device in each pivot position |
| 10/09/2002 | EP0865543B1 Pipeline padding apparatus |
| 10/09/2002 | CN2515252Y Laser depth indicator |
| 10/03/2002 | US20020139015 Wide multiple-chain trenching machine |
| 10/03/2002 | US20020139014 Motorized road-going vehicle for making trenches in the ground |
| 10/02/2002 | EP1147365B1 A cutting assembly and related apparatuses |
| 10/02/2002 | CN1371841A Multi-function environment protection type oil-collecting mud-digging boat |
| 10/01/2002 | US6457267 Trenching and edging system |
| 09/26/2002 | US20020133985 Wide multiple-chain trenching machine |
| 09/26/2002 | US20020133984 Trenching machine |
| 09/26/2002 | US20020133983 Contaminated sediment remediation vessel |
| 09/26/2002 | US20020133982 Sediment removal system |
| 09/25/2002 | EP1242692A1 Snow groomer having an improved variable geometry tiller assembly |
| 09/19/2002 | WO2002072964A1 Dampening apparatus |
| 09/18/2002 | CN1369597A Burying machine for underground cable |
| 09/17/2002 | US6449883 Method and device for dredging underwater ground layers |
| 09/17/2002 | CA2187308C Method and vessel for treating an underwater bed |
| 09/12/2002 | US20020124441 Screening apparatus |
| 09/12/2002 | US20020124440 Contaminated sediment removal vessel |
| 09/12/2002 | US20020124438 Soil spreading scraper |
| 09/11/2002 | CN2510465Y New-type multifunctional engineering vehicle for lifting 2-50 tons |
| 09/11/2002 | CN1090704C Method and equipment for laying underground continuous walls |
| 09/10/2002 | US6446365 Nozzle mount for soft excavation |