| Patents for E02D 1 - Investigation of foundation soil in situ (1,969) |
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| 08/30/1983 | US4400970 Method of and apparatus for measuring in situ, the sub-surface bearing strength, the skin friction, and other sub-surface characteristics of the soil |
| 08/30/1983 | CA1152774A1 Hand-held shear vane/penetrometer |
| 08/24/1983 | EP0086544A2 Bottom sampler |
| 07/19/1983 | US4393691 Rail vehicle for track investigation |
| 07/06/1983 | EP0083141A2 A soil investigation device |
| 06/28/1983 | US4390307 Pile-driving apparatus |
| 03/15/1983 | US4376392 Viscous sludge sample collector |
| 02/08/1983 | US4372153 Pipe clamp and a probing device comprising a pipe clamp |
| 01/18/1983 | CA1139840A1 Electrical friction sleeve cone penetrometer |
| 01/11/1983 | US4367647 Static penetrometer |
| 12/01/1982 | EP0065544A1 Procedure and device for measurement of degree of compaction. |
| 10/26/1982 | CA1134175A1 Device for determining the pore water pressure in a soil |
| 10/12/1982 | US4353247 Method and equipment for the in situ determination of geotechnical parameters of a sandy soil |
| 10/06/1982 | EP0062022A1 Device for taking ground water samples in soil and rock |
| 08/31/1982 | US4346600 Stress sensor particularly suitable for elastic, plastic and visco-elastic materials |
| 08/04/1982 | EP0056872A1 Method and apparatus for surveying ground |
| 06/10/1982 | WO1982001905A1 Procedure and device for measurement |
| 06/08/1982 | US4333331 Calibrating unit for calibrating a hydraulic or electric pressure gauge, especially of a probing device |
| 06/01/1982 | US4332172 Device for determining the pore water pressure in a soil |
| 04/27/1982 | US4326409 Situ bore hole test probe |
| 02/16/1982 | US4315429 Method of determining deformation characteristics of construction materials and soil |
| 01/05/1982 | US4309129 Method and apparatus for improving the strength of soft viscous ground |
| 12/01/1981 | US4302967 Apparatus for measuring the mechanical characteristics of a body |
| 11/11/1981 | EP0039654A2 Pyrotechnic device for anchoring piles or similar objects in the soil |
| 07/29/1981 | EP0032648A1 Static penetrometer |
| 03/11/1981 | EP0024759A1 Calibrating unit for calibrating a hydraulic or electrical pressure gauge, especially of a probing device |
| 03/03/1981 | CA1096646A1 Method and apparatus for improving soft viscous ground |
| 02/25/1981 | EP0024207A1 Pile-driving apparatus |
| 01/07/1981 | EP0022116A1 Apparatus for measuring the mechanical properties of a body, particularly of a soil |
| 10/16/1980 | WO1980002174A1 A pipe clamp and a probing comprising a pipe clamp |
| 08/05/1980 | CA1083132A1 Method and system for determining formation porosity |
| 05/28/1980 | EP0011578A1 Method and apparatus for measuring the hardness of rock in a borehole |
| 05/14/1980 | EP0010988A1 Electrical friction sleeve cone penetrometer |
| 03/18/1980 | US4194218 Inspection apparatus for underground channels |
| 03/18/1980 | CA1073686A1 Method and a device for introducing a tubular assembly into the soil |
| 03/04/1980 | CA1072768A1 Pneumatic transducer for underground burial |
| 01/29/1980 | CA1070517A1 Method and device for determining the pore water pressure in a soil |
| 12/13/1979 | WO1979001099A1 Device for determining the pore water pressure in a soil |
| 09/04/1979 | US4166508 Method and a device for introducing a tubular assembly into the soil |
| 09/04/1979 | CA1061597A1 Method and device for pore pressure sounding |
| 04/17/1979 | US4149409 Borehole stress property measuring system |
| 04/10/1979 | US4148212 Method and device for determining the pore water pressure in a soil |
| 12/19/1978 | US4130170 Probe for use in geological surveys |
| 12/05/1978 | US4128011 Investigation of the soundness of structures |
| 08/22/1978 | US4107981 Method of estimating ground pressure |
| 05/23/1978 | US4090397 Pneumatic transducer for underground burial |
| 03/21/1978 | US4079625 Probing device for investigation of the earth |
| 02/28/1978 | US4075885 Rock borehole shear tester |
| 01/24/1978 | US4069679 Undersea plow |
| 12/27/1977 | US4064749 Method and system for determining formation porosity |
| 11/22/1977 | US4059008 Method and device for pore pressure sounding |
| 10/11/1977 | US4052903 Pressure sensor |
| 09/27/1977 | US4050540 Movable device for generating acoustic shear waves in the earth |
| 08/23/1977 | US4043186 Flat expansible membranes arrangement to measure on location the module of deformability of terrains not requiring the execution of sounding perforations |
| 06/21/1977 | US4030345 Borehole pressure cell |
| 05/31/1977 | US4026370 Driving tools |
| 01/18/1977 | US4003263 Tube profile gage |
| 12/28/1976 | US3999424 Strain-gauge pressure detector for penetrometer |
| 12/14/1976 | US3996678 Free-fall grab |
| 11/02/1976 | US3988923 Measuring device |
| 07/13/1976 | US3968682 Penetrometers |
| 06/29/1976 | US3965728 Apparatus for compensating movements of an apparatus for measuring or recording displacements in respect of a fixed reference surface |
| 06/22/1976 | US3964298 Apparatus for measuring penetration of tubes of a penetrometer |
| 06/15/1976 | US3962915 Method of positioning apparatuses for measuring soil conditions |
| 06/01/1976 | US3960448 Holographic instrument for measuring stress in a borehole wall |
| 05/25/1976 | US3958646 Penetrometer frames |
| 03/30/1976 | US3946598 Method and apparatus for determining the dynamic parameters of soil in situ |
| 03/23/1976 | US3945247 Percolation gauge |
| 01/27/1976 | US3934656 Automatic hydraulic hammer |