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Class Information
Number: 441/133
Name: Buoys, rafts, and aquatic devices > Buoyancy providing attachment for pipe, log, or line
Description: Element attached to a conduit, cable, line, or log and providing the same with added buoyancy when in a body of water.










Sub-classes under this class:

Class Number Class Name Patents
441/134 Float for log 0


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8690481 Removable impact cover for a marine riser buoyancy module Apr. 8, 2014
8616806 Riser support system for use with an offshore platform Dec. 31, 2013
8573888 Method and apparatus for mounting distributed buoyancy modules on a rigid pipeline Nov. 5, 2013
8540245 Reel strip attachment Sep. 24, 2013
8500502 Floating device for pipes Aug. 6, 2013
8322438 Riser buoyancy adjustable thrust column Dec. 4, 2012
8152581 Floater for marine hose Apr. 10, 2012
8083439 Riser support system for use with an offshore platform Dec. 27, 2011
7985036 Process, system and equipment for the towing of underwater pipelines Jul. 26, 2011
7975639 Float for use in water-based security system Jul. 12, 2011
7771245 Assembly of buoys for flexible submarine pipe Aug. 10, 2010
7749035 Buoyancy clamp and method of application Jul. 6, 2010
7628665 Drilling riser buoyancy modules Dec. 8, 2009
7537416 Riser support system for use with an offshore platform May. 26, 2009
7431623 Modular vertical floating pipe Oct. 7, 2008
7421754 Hose lifter for an underwater pool cleaning device Sep. 9, 2008
7328747 Integrated buoyancy joint Feb. 12, 2008
7214114 Buoyancy element and module May. 8, 2007
7195530 System and methods to install subsea structures Mar. 27, 2007
7112008 Floating construction for launching pipelines even in low-depth conditions Sep. 26, 2006
7029356 Buoyancy control systems for tubes Apr. 18, 2006
6854516 Riser buoyancy system Feb. 15, 2005
6821055 Marine buoyancy modules and units Nov. 23, 2004
6764365 Buoyancy control systems for tubes Jul. 20, 2004
6758710 Method of reinforcement of marine buoyancy modules Jul. 6, 2004
6739926 Damping of conductor tubes May. 25, 2004
6688930 Hybrid buoyant riser/tension mooring system Feb. 10, 2004
6663453 Buoyancy control systems for tubes Dec. 16, 2003
6632112 Buoyancy module with external frame Oct. 14, 2003
6612886 In-line cable retriever Sep. 2, 2003
6602103 Float device Aug. 5, 2003
6533627 Method and apparatus for dynamically controlled buoyancy of towed arrays Mar. 18, 2003
6524152 Bottom to surface link system comprising a submarine pipe assembled to at least one float Feb. 25, 2003
6503115 Flexible buoy assembly Jan. 7, 2003
6375391 Guide device for production risers for petroleum production with a "dry tree semisubmersible" at large sea depths Apr. 23, 2002
6331129 Device for marking swimming pool lane dividers Dec. 18, 2001
6270387 Buoyant device Aug. 7, 2001
6263823 Connection system for connecting equipment to underwater cables Jul. 24, 2001
6213833 Float for buoyant hoses Apr. 10, 2001
6206742 Buoyancy device and method for using same Mar. 27, 2001
6134766 Method and apparatus for installing cable-like elements inside pipes Oct. 24, 2000
6019652 Buoyancy adjustment Feb. 1, 2000
5921013 Fishing float Jul. 13, 1999
5771205 Buoyant transducer assembly for assisting an angler Jun. 23, 1998
5711639 Clamp for cylindrical object Jan. 27, 1998
5707265 Streamlined buoyancy package for subsurface moorings Jan. 13, 1998
5600873 Floating tether cords Feb. 11, 1997
5520562 Wave suppressor May. 28, 1996
5479990 Rising centralizing spider Jan. 2, 1996
5341758 Surfing rope Aug. 30, 1994

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