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Class Information
Number: 405/223.1
Name: Hydraulic and earth engineering > Marine structure or fabrication thereof > Tension leg platform
Description: Subject matter comprising an offshore platform which has depending members that are anchored to the bed of a body of water and hold the platform in position by being placed under tension.

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
6854933 Vertically restrained centerwell SPAR Feb. 15, 2005
6851894 Deep water TLP tether system Feb. 8, 2005
6789981 Riser tensioning construction Sep. 14, 2004
6718899 Method for installing a number of risers or tendons and vessel for carrying out said method Apr. 13, 2004
6712559 Seafloor-surface linking device comprising a stabilizing element Mar. 30, 2004
6712560 Riser support for floating offshore structure Mar. 30, 2004
RE38458 Vertical stab tendon bottom connector and method for securing and releasing the same Mar. 9, 2004
6682266 Tension leg and method for transport, installation and removal of tension legs pipelines and slender bodies Jan. 27, 2004
6666624 Floating, modular deepwater platform and method of deployment Dec. 23, 2003
6652192 Heave suppressed offshore drilling and production platform and method of installation Nov. 25, 2003
6585455 Rocker arm marine tensioning system Jul. 1, 2003
6575665 Precast modular marine structure & method of construction Jun. 10, 2003
6568880 Foundation system for tension leg platforms May. 27, 2003
6568875 Connector intended for use with tension leg platform May. 27, 2003
6558084 Device for connecting a submerged fluid-transporting line May. 6, 2003
6517291 Riser tensioning construction Feb. 11, 2003
6503023 Temporary floatation stabilization device and method Jan. 7, 2003
6488447 Composite buoyancy module Dec. 3, 2002
6478511 Floating system with tensioned lines Nov. 12, 2002
6447208 Extended base tension leg substructures and method for supporting offshore platforms Sep. 10, 2002
6435775 Buoyancy system with buoyancy module seal Aug. 20, 2002
6406223 Installation for producing oil from an off-shore deposit and process for installing a riser Jun. 18, 2002
6375391 Guide device for production risers for petroleum production with a "dry tree semisubmersible" at large sea depths Apr. 23, 2002
6371697 Floating vessel for deep water drilling and production Apr. 16, 2002
6352116 Riser moving and guiding using shuttle plates Mar. 5, 2002
6347912 Installation for producing oil from an off-shore deposit and process for installing a riser Feb. 19, 2002
6318933 Foundation system for tension leg platforms Nov. 20, 2001
6312195 Method of installing foundation for tension leg platform Nov. 6, 2001
6244785 Precast, modular spar system Jun. 12, 2001
6173781 Slip joint intervention riser with pressure seals and method of using the same Jan. 16, 2001
6155748 Deep water riser flotation apparatus Dec. 5, 2000
6142709 Foundation system for tension leg platforms Nov. 7, 2000
6132144 Passive anchor latch Oct. 17, 2000
6113314 Disconnectable tension leg platform for offshore oil production facility Sep. 5, 2000
6109834 Composite tubular and methods Aug. 29, 2000
6106198 Method for installation of tension-leg platforms and flexible tendon Aug. 22, 2000
6062769 Enhanced steel catenary riser system May. 16, 2000
6059336 Hydraulically actuated mechanical coupler May. 9, 2000
6045296 Tension ring for riser Apr. 4, 2000
6036404 Foundation system for tension leg platforms Mar. 14, 2000
6027286 Offshore spar production system and method for creating a controlled tilt of the caisson axis Feb. 22, 2000
6022174 Method for installing a tension leg platform Feb. 8, 2000
6017168 Fluid assist bearing for telescopic joint of a RISER system Jan. 25, 2000
6012873 Buoyant leg platform with retractable gravity base and method of anchoring and relocating the same Jan. 11, 2000
5997218 Method of and apparatus for stabilizing a tension-leg platform in deep water operations Dec. 7, 1999
5984585 Vertical stab tendon bottom connector and method for securing and releasing the same Nov. 16, 1999
5964550 Minimal production platform for small deep water reserves Oct. 12, 1999
5899638 Floating platform top connector May. 4, 1999
5873678 Tension adjustment mechanism employing stepped or serrated ramps for adjusting tension of a tendon from a floating marine platform Feb. 23, 1999
5791819 Buoyant platform Aug. 11, 1998

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