Patents for E02D - Foundations; Excavations; Embankments; Underground or underwater structures (120) | |
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03/1995 | |
03/29/1995 | EP0644968A1 Device for driving piles, preferably poles, into a foundation. |
12/1993 | |
12/23/1993 | WO1993025765A1 Device for driving piles, preferably poles, into a foundation |
12/23/1993 | CA2137675A1 Device for driving piles, preferably poles, into a foundation |
05/1992 | |
05/13/1992 | CN1016586B Insitu hazardous waste treating apparatus and method of using same |
11/1991 | |
11/26/1991 | CA1292363C Method for retaining the sidewalls of deep excavations |
10/1991 | |
10/16/1991 | EP0289520B1 Remote underwater excavator and sampler |
08/1991 | |
08/27/1991 | CA1287990C Anchor bolt assembly |
08/07/1991 | EP0393094B1 Telescopic well or column pipe |
10/1990 | |
10/24/1990 | EP0393094A1 Telescopic well or column pipe. |
06/1990 | |
06/12/1990 | US4932144 Remote underwater excavator and sampler |
02/1990 | |
02/13/1990 | US4900197 Process for holding up the lateral walls of deep ditches |
06/1989 | |
06/01/1989 | WO1989004895A1 Telescopic well or column pipe |
03/1989 | |
03/01/1989 | EP0305259A1 Process for retaining lateral walls of deep excavations |
11/1988 | |
11/09/1988 | EP0289520A1 Remote underwater excavator and sampler. |
02/1988 | |
02/17/1988 | CN87100584A Insitu hazardous waste treating apparatus and method of using same |
08/1987 | |
08/04/1987 | CA1224906A1 Procedure for constructing of elements a wall or an earth sustaining wall |
06/1982 | |
06/22/1982 | CA1126039A1 Floating breakwater |
03/1981 | |
03/17/1981 | US4255909 Manhold |
09/1979 | |
09/04/1979 | CA1061810A1 Subsea excavation system |
09/1977 | |
09/06/1977 | US4046691 Method for collecting light-weight substance floating on a liquid surface |
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