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Class Information
Number: 405/196
Name: Hydraulic and earth engineering > Marine structure or fabrication thereof > With work deck vertically adjustable relative to floor
Description: Method or apparatus wherein the construction includes a platform on which, or from which a work operation is to be performed, which platform is supported by one or more elongated columnar members that are secured to the bed underlying body of water, and which platform is movable up and down with relation to the member(s) and the bed.

Sub-classes under this class:

Class Number Class Name Patents
405/200 By buoyancy control 49
405/199 Frictional gripper 37
405/198 Longitudinally extending projections or recesses 88
405/197 Sectional leg 18

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8689881 Offshore unit and method of installing wellhead platform using the offshore unit Apr. 8, 2014
8678733 Structure for transporting and installing or retrieving underwater equipment and method of transporting and of installing or retrieving underwater equipment Mar. 25, 2014
8657532 Method and apparatus for elevating a marine platform Feb. 25, 2014
8585324 Maintenance platform for off-shore construction Nov. 19, 2013
8585325 Cantilever system and method of use Nov. 19, 2013
8523490 Temporary platform for attachment to an offshore structure Sep. 3, 2013
8517637 Structure for the transport, installation and dismantling of an oil rig deck and method for using one such structure Aug. 27, 2013
8459901 Jacking system Jun. 11, 2013
8454272 Jack-up platform Jun. 4, 2013
8444347 Truss heave plate system for offshore platform May. 21, 2013
8425155 Jacking system for a leg of a jack-up platform Apr. 23, 2013
8403058 Offshore unit and method of installing wellhead platform using the offshore unit Mar. 26, 2013
8353643 Method and apparatus for elevating a marine platform Jan. 15, 2013
8292548 Method and apparatus for improving the lateral support provided by the legs of a jack-up drilling rig Oct. 23, 2012
8287212 Cantilever system and method of use Oct. 16, 2012
8113742 Jack-up platform Feb. 14, 2012
8070388 Structure for transporting, commissioning and decommissioning the elements of a fixed oil platform and methods for implementing such a structure Dec. 6, 2011
8025462 Displaceable platform structure and method of the displacement thereof Sep. 27, 2011
8002500 Method and apparatus for elevating a marine platform Aug. 23, 2011
7988384 Arctic platform Aug. 2, 2011
7934887 Complementary locking system for locking legs to the deck of an offshore drilling platform and methods for installing one such locking system May. 3, 2011
7921604 Storm proof aluma-foam housing unit Apr. 12, 2011
7886845 Method and system for monitoring auxiliary operations on mobile drilling units and their application to improving drilling unit efficiency Feb. 15, 2011
7815398 Methods of positioning an elevating support vessel Oct. 19, 2010
7784546 Tension lift frame used as a jacking frame Aug. 31, 2010
7780375 Method and apparatus for elevating a marine platform Aug. 24, 2010
7607864 Buoyant building foundation Oct. 27, 2009
7594781 Lift boat leg Sep. 29, 2009
7563056 Telescoping piling apparatus and method Jul. 21, 2009
7513713 Structure for transporting, commissioning and decommissioning of a deck of a fixed oil platform and method for implementing the structure Apr. 7, 2009
7419329 Semi-submersible dry-docking lift apparatus Sep. 2, 2008
7410326 Auxiliary reaction frame system for cantilevered jack-up rigs, and method therefore Aug. 12, 2008
7293939 Inclined leg floating production platform with a damper plate Nov. 13, 2007
7287935 Tendon assembly for mooring offshore structure Oct. 30, 2007
7258510 Systems and methods useful in stabilizing platforms and vessels having platforms and legs Aug. 21, 2007
7186061 Self-regulating jacking system Mar. 6, 2007
7163355 Mobile wind-driven electric generating systems and methods Jan. 16, 2007
7163061 Apparatus and method for supporting structures on offshore platforms Jan. 16, 2007
7147403 Self-elevating offshore structure Dec. 12, 2006
7131388 Lift boat Nov. 7, 2006
7037044 Deck-to-column connection for extendable draft platform May. 2, 2006
7011471 Jacking method and apparatus Mar. 14, 2006
7001108 Mat supported offshore structure Feb. 21, 2006
6981822 Jack-up apparatus for marine-based platforms Jan. 3, 2006
6926097 Jack up workover rig with removable workover floor unit Aug. 9, 2005
6869252 Taut mooring system for jack-up type mobile offshore platforms Mar. 22, 2005
6808337 Vessel with vertically elevational support legs Oct. 26, 2004
6773207 Method of lowering a floating body of a floating foundation Aug. 10, 2004
6729804 Cantilevered tower for jack-up platform May. 4, 2004
6718903 Life boat Apr. 13, 2004

1 2 3 4

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