| Patents for E02B 17 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs; Construction methods therefor (4,387) |
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| 09/09/1981 | EP0035023A1 Gravity base, jack-up platform method and apparatus. |
| 09/08/1981 | US4288177 Walking platform construction |
| 09/08/1981 | CA1108418A1 Ball joint for connecting a concrete tower carrying a surface platform with a foundation |
| 09/01/1981 | US4286898 Releasable connection |
| 09/01/1981 | US4286629 Removable plug |
| 08/25/1981 | US4285614 Structure allowing the attainment of a precise seabed location |
| 08/18/1981 | US4284367 Movable-joint device for connecting a sea-bed exploitation column to its base, connecting and disconnecting processes using the said device, and joint element used in the said device |
| 08/18/1981 | CA1107085A2 Platform leg plug |
| 08/11/1981 | US4283161 Method and apparatus for a guard |
| 08/04/1981 | CA1106195A1 Method and apparatus for building ice islands |
| 07/21/1981 | US4279546 Grout seal premature inflation protective system |
| 07/21/1981 | US4279545 Device for sealing the lower part of a column standing on or in the bottom below a body of water with respect to the surrounding surface of the bottom |
| 07/07/1981 | US4277051 Tilt-up/jack-up off-shore drilling apparatus and method |
| 06/30/1981 | US4275974 Inflation and grout system |
| 06/25/1981 | WO1981001645A1 A dynamic internal fitting system for a sport shoe |
| 06/25/1981 | WO1981001644A1 A sport shoe with a dynamic tongue assembly |
| 06/24/1981 | EP0030540A1 A self-raising platform structure with a device for coupling together the platform and leg in any position with respect to each other. |
| 06/23/1981 | CA1103469A1 Inner seals for the knuckle pins connecting the legs of a drilling and/or productions platform with the knuckle posts |
| 06/16/1981 | US4273474 Grouting of offshore jackets to distribute forces among the anchoring piles |
| 06/09/1981 | CA1102571A1 Method and apparatus for offshore operations |
| 06/03/1981 | EP0029428A1 Apparatus for and method of transporting prefabricated plants. |
| 06/02/1981 | US4270877 Working platform |
| 06/02/1981 | US4270775 Device for sealing the place of penetration of a pipeline in the wall of a submerged structure |
| 06/02/1981 | US4270480 Pinned suction anchors |
| 06/02/1981 | CA1102236A1 System for inflating packers and placing grout through one line |
| 05/26/1981 | US4269543 Mobile, offshore, self-elevating (jack-up) unit leg/hull rigidification system |
| 05/26/1981 | US4269542 Jack-up rig for marine drilling |
| 05/19/1981 | US4268191 Stand-by service structure for casual off-shore attendance |
| 05/12/1981 | US4266888 Spherical joint for connecting a concrete tower supporting a water surface foundation to a sea foundation |
| 05/12/1981 | US4266887 Self-elevating fixed platform |
| 05/12/1981 | CA1100865A1 Retrievable plug for offshore platforms having shear type retaining means |
| 05/05/1981 | US4265569 Ice barrier for islands |
| 05/05/1981 | US4265568 Gravity base, jack-up platform - method and apparatus |
| 05/05/1981 | CA1100318A1 Vmp riser horizontal bearing |
| 04/28/1981 | CA1099932A1 Anchoring of structures |
| 04/21/1981 | US4262702 Conductor pipe plug |
| 04/14/1981 | US4261585 Inner seals for the knuckle pins connecting the legs of a drilling and/or production platform with knuckle posts |
| 04/14/1981 | CA1099120A1 Platform leg plug |
| 04/07/1981 | US4260292 Arctic offshore platform |
| 04/07/1981 | US4260291 Installation of an offshore structure |
| 03/31/1981 | CA1098326A1 Ancillary off-shore column located near a sea-bed working column or platform |
| 03/31/1981 | CA1098325A1 Method and apparatus for constructing and maintaining an offshore ice island |
| 03/25/1981 | EP0025618A1 Method for increasing the stability of an artificial island by means of pre-loading |
| 03/19/1981 | WO1981000733A1 Support structure for offshore platforms |
| 03/11/1981 | EP0024939A2 A system for a jack-up rig unit for offshore use and a method of securing the support legs of such a unit |
| 03/11/1981 | EP0024766A1 Barge or platform with jacking apparatus |
| 03/10/1981 | US4255069 Jack-up platform locking apparatus |
| 03/03/1981 | US4253780 Method of positioning a flare support structure for a petroleum platform |
| 02/24/1981 | US4252469 Method and apparatus for installing integrated deck structure and rapidly separating same from supporting barge means |
| 02/24/1981 | US4252468 Method and apparatus for installing deck structures entailing composite shock absorbing and alignment aspects |
| 02/19/1981 | WO1981000423A1 Gravity base,jack-up platform method and apparatus |
| 02/17/1981 | US4251343 Sacrificial anode apparatus |
| 02/10/1981 | US4249619 Deviated drilling apparatus |
| 02/10/1981 | US4249618 Method and apparatus for the working of underwater deposits |
| 02/10/1981 | US4249576 Retrievable plug for offshore platforms having shear type retaining means |
| 01/20/1981 | US4245930 Offshore drilling and production |
| 01/20/1981 | US4245929 Arctic multi-angle conical structure |
| 01/20/1981 | US4245928 Joining process of panel points for members in a marine structure and method for the construction of structures in accordance with the process |
| 01/13/1981 | CA1093325A1 Device for setting and centering an off-shore gravity structure over existing units anchored in the seabed |
| 01/13/1981 | CA1093324A1 Multi-purpose marine structure |
| 01/13/1981 | CA1093322A1 Marine structure |
| 01/07/1981 | EP0020686A1 Elevator device for a sea platform. |
| 12/30/1980 | US4242012 Method for constructing a multiseason ice platform |
| 12/30/1980 | US4242011 Method and apparatus for forming integrated deck sub-structure assembly including arch-vessel passage means |
| 12/30/1980 | CA1092376A1 Method and apparatus for protecting offshore structures against forces from moving ice sheets |
| 12/24/1980 | WO1980002853A1 A device for coupling together two bodies in any position with respect to each other,which bodies are mounted for a linear movement with respect to each other |
| 12/23/1980 | US4240767 Valving methods and apparatus for flooding and grouting offshore jacket sleeves |
| 12/16/1980 | US4239418 Arctic multi-angle conical structure having a discontinuous outer surface |
| 12/16/1980 | US4239417 Multi-purpose marine structure |
| 12/16/1980 | US4239263 Spherical connector having integrally formed outlets |
| 11/18/1980 | US4234270 Marine structure |
| 11/18/1980 | CA1089660A1 Plat-gard leg closure |
| 11/04/1980 | US4231681 Structure for sea-bed exploitation allowing the various functions inherent in such exploitation to be performed |
| 10/29/1980 | EP0018038A1 Apparatus for effecting a relative linear displacement between a number of columns and a body arranged for movement along said columns |
| 10/28/1980 | US4230424 Leg closure |
| 10/28/1980 | US4230423 Ice-breaking apparatus for structure for use in icy waters |
| 10/28/1980 | CA1088329A1 Method of securing an underwater structure |
| 10/14/1980 | US4227831 Self-contained offshore platform |
| 10/14/1980 | US4227830 Ancillary off-shore column located near a sea-bed working column or platform |
| 10/07/1980 | US4226555 Mooring system for tension leg platform |
| 09/30/1980 | US4224723 Flexible connection device |
| 09/23/1980 | US4224005 Truss rig |
| 09/23/1980 | CA1086083A1 Method for erecting a deck on a marine structure |
| 09/16/1980 | US4222683 Offshore construction |
| 09/16/1980 | US4222682 Platforms for sea-bottom exploitation |
| 09/02/1980 | US4220422 Leg closure |
| 08/19/1980 | CA1083839A1 Pivotal connecting device for pivotally connecting an off-shore articulated column structure to a sea bottom |
| 08/07/1980 | WO1980001581A1 Procedure and arrangement for laying the foundation of prefabricated plants ashore |
| 08/05/1980 | US4215952 Offshore structure for use in waters containing large moving ice masses |
| 08/05/1980 | US4215951 Platform leg plug |
| 08/05/1980 | US4215848 Gripping and skidding apparatus |
| 07/29/1980 | US4214843 Subsea grout distributor |
| 07/15/1980 | US4212563 Rupturable closure plug for offshore structures |
| 07/15/1980 | CA1081483A1 Off-shore drilling and production structure |
| 07/08/1980 | US4211503 Bimetallic corrosion resistant structural joint and method of making same |
| 07/08/1980 | CA1081052A1 Operation vessel for ice covered seas |
| 07/01/1980 | CA1080492A1 Method of and apparatus for ice disaggregation |
| 07/01/1980 | CA1080491A1 Ice-breaking apparatus for structure for use in icy waters |
| 06/24/1980 | CA1079994A1 Method for installing an offshore tower |
| 06/17/1980 | US4208055 Method and device for sealing the place of penetration of a pipeline in the wall of a submerged structure |