| Patents for E02F 1 - General working methods with dredgers or soil-shifting machines (282) |
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| 07/07/2004 | EP1325196B1 Assembly for exchangeably fastening an add-on, for example an excavator shovel, to an excavator boom or a vehicle |
| 04/15/2004 | US20040068894 Method and apparatus for mining and metallurgically processing granular ore |
| 03/09/2004 | US6701647 Subsurface imaging system and method |
| 02/12/2004 | US20040028515 Assembly for exchangeably fastening an add-on, for example an excavator shovel, to an excavator boom or a vechicle |
| 10/29/2003 | CN1125909C Spiral flow desilting equipment |
| 08/21/2003 | US20030154634 Automatic dredge system and method of operation |
| 07/09/2003 | EP1325196A2 Assembly for exchangeably fastening an add-on, for example an excavator shovel, to an excavator boom or a vehicle |
| 04/24/2003 | US20030074812 Subsurface imaging system and method |
| 02/05/2003 | EP1281816A2 Excavator data acquisition and control system and process |
| 01/14/2003 | US6505892 Softwall mining method and device |
| 11/27/2002 | EP0830522B1 Excavator data acquisition and control system and process |
| 11/12/2002 | US6477795 Excavator data acquisition and control system and process |
| 09/19/2002 | WO2002031271A3 Assembly for exchangeably fastening an add-on, for example an excavator shovel, to an excavator boom or a vehicle |
| 07/03/2002 | CN1356433A Turbulent soil-shifting apparatus fixed to surface of silt under water stream for water conservancy |
| 04/18/2002 | WO2002031271A2 Assembly for exchangeably fastening an add-on, for example an excavator shovel, to an excavator boom or a vehicle |
| 02/05/2002 | US6343559 Transportation system for dredged material and method of levy building |
| 01/10/2002 | WO2002002909A1 Softwall mining method and device |
| 01/10/2002 | CA2430662A1 Softwall mining method and device |
| 10/31/2001 | CN1319705A Spiral flow desilting equipment |
| 10/25/2001 | WO2001079614A1 Equipments for excavating the underground |
| 10/09/2001 | US6299380 Process for treating dredge detritus |
| 07/31/2001 | US6267191 Self advancing mining sled |
| 06/20/2001 | CN1067455C Excovator data acquisition and control system and process |
| 05/29/2001 | US6238140 Method for laying tile or pipe underground |
| 05/03/2001 | DE19952656A1 Method of dredging waterways and lakes with the heavy material mechanically removed and the loose sediment removed via local settling tanks |
| 03/06/2001 | US6195922 Excavator data acquisition and control system and process |
| 01/04/2001 | DE19940875C1 Method for producing a pipe bed involves digging out trench and compacting lifted earth and shaping it to correspond to external contour of pipe which is then laid therein |
| 11/09/2000 | WO2000006838A9 Dredging vessel and method for recovering, transporting and off-loading material |
| 09/19/2000 | US6119376 Excavator data acquisition and control system and process |
| 07/27/2000 | DE19902133A1 Subsea exploitation of raw materials employs ship, suspended pumping system and central unit on sea bed with satellite recovery equipment, bringing sea bed or subsea resources to surface |
| 02/16/2000 | CN2364083Y Dismountable pneumatic desilting platform |
| 02/10/2000 | WO2000006841A1 Material distribution vessel and method for distributing material recovered in a dredging operation |
| 02/10/2000 | WO2000006840A1 Vessel and method for transporting and off-loading material recovered in a dredging operation |
| 02/10/2000 | WO2000006839A1 Transportation system for dredged material and method of levy building |
| 02/10/2000 | WO2000006838A1 Dredging vessel and method for recovering, transporting and off-loading material |
| 08/10/1999 | US5935192 System and method for representing parameters in a work site database |
| 06/29/1999 | US5915885 Method for vertical displacement of masses underneath the earth's surface |
| 03/31/1999 | EP0830522A4 Excavator data acquisition and control system and process |
| 08/26/1998 | CN1191594A Excavator data acquisition and control system and process |
| 06/18/1998 | DE19744772A1 Surface terrain data structure for use by earth moving machine |
| 03/25/1998 | EP0830522A1 Excavator data acquisition and control system and process |
| 01/06/1998 | US5704142 Excavator data acquisition and control system and process |
| 08/26/1997 | US5659985 Excavator data acquisition and control system and process |
| 08/20/1997 | EP0455672B1 Trench excavating arm propulsion apparatus |
| 08/13/1997 | EP0788844A1 Method for vertical displacement of masses, in particular soil masses and device therefor |
| 07/15/1997 | US5647691 Method and apparatus for transferring mud and silt |
| 01/03/1997 | WO1997000389A1 Excavator data acquisition and control system and process |
| 01/03/1997 | CA2222448A1 Excavator data acquisition and control system and process |
| 09/10/1996 | US5553407 Excavator data acquisition and control system and method of use |
| 04/23/1996 | CA2045656C Trenching apparatus |
| 03/28/1996 | DE19535647A1 Dredger with pumping of dredged material |
| 05/31/1995 | EP0655535A1 Method and apparatus for dredging a trench in a water bed |
| 05/11/1995 | WO1995012715A1 System for the exploration for and extraction of raw materials, minerals and the like in an underwater bottom |
| 05/11/1995 | CA2175709A1 System for the exploration for and extraction of raw materials, minerals and the like in an underwater bottom |
| 11/15/1994 | CA1333062C Pipeline padding apparatus |
| 11/10/1994 | DE4315764A1 Process and apparatus for desludging flat bodies of water |
| 04/14/1994 | DE4234442A1 Method of filling pipe trenches with concrete - involves keeping dry concrete ingredients in silo on vehicle which is brought to trench edge and then adding water to mixture in mixing and conveying machine just before pouring |
| 03/31/1994 | WO1994006973A1 Hydraulic thrust producing implement |
| 10/05/1993 | US5249378 Submersible; for use in combination with an excavator |
| 12/23/1992 | WO1992018707A3 Method and apparatus for dredging sludge |
| 10/29/1992 | WO1992018707A2 Method and apparatus for dredging sludge |
| 05/06/1992 | EP0455672A4 Trench excavating arm propulsion apparatus |
| 11/13/1991 | EP0455672A1 Trench excavating arm propulsion apparatus. |
| 09/10/1991 | CA1288735C Dragline apparatus |
| 01/16/1991 | CN1011252B Improved dragline apparatus |
| 07/28/1990 | WO1990008856A1 Trench excavating arm propulsion apparatus |
| 08/05/1987 | CN86106946A Improved dragline apparatus |
| 08/30/1983 | US4401206 Arrangement for continuously excavating ground and conveying excavated earth in the vertical direction |
| 04/05/1983 | CA1144190A1 Method for continuously excavating ground and conveying excavated earth in the vertical direction and an apparatus for carrying out said method |
| 10/12/1982 | US4353796 Apparatus for digging and transporting soil and sand, stones and rocks, minerals and the like |
| 12/22/1981 | US4306364 Vertical excavating arrangement |
| 05/05/1981 | US4265036 Bucket dredging and conveying system |
| 04/14/1981 | US4261119 Method for digging and transporting material |
| 03/10/1981 | US4254565 Method for the segmented mining and drying of bentonite |
| 12/30/1980 | US4241811 Brake mechanism for a gondola car loader |
| 11/25/1980 | CA1090280A1 Method and apparatus for digging and transporting soil and sand, stones and rocks, minerals and the like |
| 10/28/1980 | US4230368 Method for displacing large blocks of earth |
| 03/14/1978 | US4079003 Method of transforming sludge into ecologically acceptable solid material |
| 06/07/1977 | US4028240 Method and apparatus for treating sumps |
| 05/10/1977 | US4022282 Method for reclaiming strip-mined land |
| 11/30/1976 | US3994349 Apparatus for reclaiming strip-mined land |
| 09/07/1976 | US3978673 Method of disposing of liquid waste |