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Class Information
Number: 441/6
Name: Buoys, rafts, and aquatic devices > Buoy > Marker buoy
Description: Buoy adapted to be anchored to a vessel or location on or under the waters surface to draw attention to the vessel or location.










Sub-classes under this class:

Class Number Class Name Patents
441/7 Having means to release buoy upon submergence 30
441/11 With signalling device 73


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8647014 Buoy systems and methods for minimizing beach erosion and other applications for attenuating water surface activity Feb. 11, 2014
8564456 Sequenced vehicular traffic guiding system Oct. 22, 2013
8485855 Apparatus for restoring buoyancy to a buoy Jul. 16, 2013
8485856 Decoy anchor assembly Jul. 16, 2013
8449342 Safety flotation buoy system May. 28, 2013
8439716 Marker for floating on the surface of a body of water May. 14, 2013
8408956 Payload delivery units for pressure protecting and delivering a submerged payload and methods for using the same Apr. 2, 2013
8393927 Marker buoy Mar. 12, 2013
8251763 Life jacket beacon Aug. 28, 2012
8206193 Accoustic buoy Jun. 26, 2012
8167670 Blow-off float vehicle recovery apparatus May. 1, 2012
8096256 Passively-actuated lanyard clamp Jan. 17, 2012
7918700 Water and ice rescue device and method of performing a rescue utilizing the device Apr. 5, 2011
7824238 Marker buoy Nov. 2, 2010
7819712 Marker buoy Oct. 26, 2010
7699676 Buoy system Apr. 20, 2010
7455561 Sinkable buoy system for use with a water sports course Nov. 25, 2008
7390233 Station keeping maneuverable articulating autonomous regenerative tactical (SMAART) buoy Jun. 24, 2008
7367859 Beach buoy May. 6, 2008
7311575 Buoy and buoy mounting bracket Dec. 25, 2007
7303453 Collapsible inflatable dive buoy Dec. 4, 2007
7261606 Flotation apparatus Aug. 28, 2007
7258836 Freeze resistant buoy system Aug. 21, 2007
7156712 Floating debris and weedline marker Jan. 2, 2007
7083483 Inflatable sailboat racing mark that can be reduced in size for storage while inflated Aug. 1, 2006
7083484 Inflatable dive marker and collection bag Aug. 1, 2006
7001235 Surface marker buoy apparatus Feb. 21, 2006
7001233 Stackable buoy with rope nesting grooves Feb. 21, 2006
6860773 Inflatable dive marker and collection bag Mar. 1, 2005
6850152 Non-flammable land and sea marker Feb. 1, 2005
6814638 Airdrop type buoy apparatus Nov. 9, 2004
6709304 Spot marker buoy Mar. 23, 2004
6652339 Inflatable dive marker and collection bag Nov. 25, 2003
6602101 Loop bottom buoy stick Aug. 5, 2003
6592416 Target for naval gunfire Jul. 15, 2003
6544088 Self adjusting neutral buoyancy countermeasure and system Apr. 8, 2003
6437708 System and method of land marking Aug. 20, 2002
6431931 Reversible weighted float Aug. 13, 2002
6383045 Marker buoy May. 7, 2002
6309269 Variable buoyancy buoy for mooring mobile offshore drilling units Oct. 30, 2001
6273773 Scuba diver's marker buoy and dry box Aug. 14, 2001
6202588 Apparatus for marking the location of submerged articles Mar. 20, 2001
6123593 Rust proof buoy marker Sep. 26, 2000
6093069 Low watch circle buoy system Jul. 25, 2000
6066015 Method and system for anchoring a buoy via a screw-type anchor May. 23, 2000
6053657 Portable safety marker Apr. 25, 2000
6036559 Flotation device for a submerged article Mar. 14, 2000
5970651 Multi-purpose fishing bucket apparatus Oct. 26, 1999
5947780 Apparatus for marking a spot in differing depths of water Sep. 7, 1999
5902163 Debris shedding buoy May. 11, 1999

1 2 3










 
 
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