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Class Information
Number: 441/1
Name: Buoys, rafts, and aquatic devices > Buoy
Description: Device comprising a distinctly shaped, anchored device, such as cans, spars, nun, etc., especially adapted to float in water for the purpose of indicating a navigable channel, anchorage, some impediment or hazard to navigation, some object below the surface of the water, to provide a mooring or a support for some object, or to perform some other water related function.










Sub-classes under this class:

Class Number Class Name Patents
441/32 Container type 27
441/3 For mooring a vessel 159
441/21 Having means to control attitude or position 49
441/30 Inflatable 60
441/6 Marker buoy 113
441/2 With means to call buoy to surface 41


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8702459 Floating technical hollow body and method of manufacture Apr. 22, 2014
8568180 Stackable mooring buoy Oct. 29, 2013
8535107 Biophysical geoengineering compositions and methods Sep. 17, 2013
8506339 Floating platform for motorized decoys Aug. 13, 2013
8340844 Undersea position and velocity measuring system and process Dec. 25, 2012
8177594 Watercraft reverse gate operation May. 15, 2012
8152581 Floater for marine hose Apr. 10, 2012
8123579 Protection of apparatus for capturing wave energy Feb. 28, 2012
8099804 Thermally insulating blanket constructed of individual floats and system for deploying and retrieving same Jan. 24, 2012
8033879 Biophysical geoengineering compositions and methods Oct. 11, 2011
8007331 Float and a floatable structure Aug. 30, 2011
7975639 Float for use in water-based security system Jul. 12, 2011
7841916 Solar powered inertial fluid mobilizer Nov. 30, 2010
7785163 Wave energy buoy Aug. 31, 2010
7476137 Expandable wave energy conversion system Jan. 13, 2009
7393254 Marine buoy Jul. 1, 2008
7390233 Station keeping maneuverable articulating autonomous regenerative tactical (SMAART) buoy Jun. 24, 2008
7247069 Floating electronic platform for swimming pools and spas Jul. 24, 2007
7089876 Floating electronic platform for swimming pools and spas Aug. 15, 2006
7056176 Buoyancy motor Jun. 6, 2006
7052341 Method and apparatus for controlling a propulsive force of a marine vessel May. 30, 2006
7004806 Shark deterrent device Feb. 28, 2006
7001233 Stackable buoy with rope nesting grooves Feb. 21, 2006
6726516 Method and apparatus for enabling hand tools to float Apr. 27, 2004
6690300 Marine engine throttle control method for single or twin engine applications Feb. 10, 2004
6685518 Buoyant device that resists entanglement by whales and boats Feb. 3, 2004
6616493 Floatable beverage holder Sep. 9, 2003
6602101 Loop bottom buoy stick Aug. 5, 2003
6431931 Reversible weighted float Aug. 13, 2002
6332819 Object retrieval device used in water Dec. 25, 2001
6309269 Variable buoyancy buoy for mooring mobile offshore drilling units Oct. 30, 2001
6254445 Inflatable chemical foam injected buoy Jul. 3, 2001
6206742 Buoyancy device and method for using same Mar. 27, 2001
6102758 Near shore spar communication platform Aug. 15, 2000
6074259 Off-shore refuse collection device Jun. 13, 2000
5902163 Debris shedding buoy May. 11, 1999
5816874 Remote underwater sensing station Oct. 6, 1998
5803778 Methods and apparatus for handling waste Sep. 8, 1998
5795203 Air-launched buoy Aug. 18, 1998
5772482 Designer deluxe bobbers Jun. 30, 1998
5746151 Multi-functional carrier for sailboats May. 5, 1998
5727974 Liquid-filled underwater sculptural object Mar. 17, 1998
5707265 Streamlined buoyancy package for subsurface moorings Jan. 13, 1998
5690522 Cable tie flotation device with cable tie Nov. 25, 1997
5676576 Submarine deployed sea-state sensor Oct. 14, 1997
5658178 Floating devices assembled from plastic bottles or aluminum cans Aug. 19, 1997
5588889 Timing buoy with remote timing capability Dec. 31, 1996
5517935 Underwater vehicle polymer ejection control valve assembly May. 21, 1996
5516316 Diver awareness buoy May. 14, 1996
5505645 Floatable assembly for swimming pools Apr. 9, 1996

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