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Class Information
Number: 441/11
Name: Buoys, rafts, and aquatic devices > Buoy > Marker buoy > With signalling device
Description: Buoy wherein means to draw attention to the buoy and its location is affixed thereon.










Sub-classes under this class:

Class Number Class Name Patents
441/12 Audible 9
441/13 Illuminating 32
441/20 Reflecting means 14
441/19 Smoke producing 4


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8687375 Automated distress locator transmission system Apr. 1, 2014
8508382 Light emitting inflatable safety beacon Aug. 13, 2013
8393927 Marker buoy Mar. 12, 2013
8251763 Life jacket beacon Aug. 28, 2012
8206193 Accoustic buoy Jun. 26, 2012
7874886 Communication float Jan. 25, 2011
7812732 Water safety apparatus Oct. 12, 2010
7396268 Safety signaling apparatus for watercraft Jul. 8, 2008
7337568 Non-inflatable floating sign Mar. 4, 2008
7258836 Freeze resistant buoy system Aug. 21, 2007
7226328 Extendable spar buoy sea-based communication system Jun. 5, 2007
7165504 Antenna linear extension and retraction apparatus for a submersible device, and method of use Jan. 23, 2007
7160166 Underwater flotation safety device Jan. 9, 2007
7156712 Floating debris and weedline marker Jan. 2, 2007
7125298 Man overboard beacon Oct. 24, 2006
7054230 Locator device for submerged structures May. 30, 2006
6850152 Non-flammable land and sea marker Feb. 1, 2005
6791490 Integrated dive flag/float and GPS navigation system for scuba divers Sep. 14, 2004
6558216 Land and water based flash flood detection and warning system May. 6, 2003
6448903 Device for detecting internal pressure of air-filled gunwale protector Sep. 10, 2002
6360495 Sand spike system Mar. 26, 2002
6261142 Submersible and retrievable buoy Jul. 17, 2001
6102758 Near shore spar communication platform Aug. 15, 2000
6093069 Low watch circle buoy system Jul. 25, 2000
5951346 Air-delivered position marking device and method Sep. 14, 1999
5735719 Combination inflatable dive flag and float Apr. 7, 1998
5616059 Tailbuoy with self-deploying mast Apr. 1, 1997
5593332 Ice penetrating communication buoy Jan. 14, 1997
H1560 Crash site locator beacon Jul. 2, 1996
5517202 Minimal washover, inline high frequency buoyant antenna May. 14, 1996
5411424 Replaceable buoy cover May. 2, 1995
5403219 Launchable diver surfacing signal Apr. 4, 1995
5339288 Underwater sound source with remote controlled actuator Aug. 16, 1994
5319376 Arctic submarine buoy and application methods Jun. 7, 1994
5291194 Apparatus for interconnecting an underwater vehicle and a free-floating pod Mar. 1, 1994
5234365 Marker buoy apparatus Aug. 10, 1993
5231952 Compact, stowable marker device for underwater location Aug. 3, 1993
5218366 Emergency transmitter buoy for use on marine vessels Jun. 8, 1993
5188551 Marker body Feb. 23, 1993
5179907 Flag and buoy apparatus Jan. 19, 1993
5163858 Rescue buoy apparatus Nov. 17, 1992
5114369 Water skier's safety system May. 19, 1992
H1051 Antenna stabilizing buoy May. 5, 1992
5096448 Marker buoy Mar. 17, 1992
5073136 Collapsible sonobuoy floatation device Dec. 17, 1991
5066256 Buoy and releasing system for ships in distress Nov. 19, 1991
4981453 Emergency transmitter buoy and bracket assembly Jan. 1, 1991
4962488 Technique for surface to surface communications using high frequency radio with low probability of intercept signaling Oct. 9, 1990
4961714 Mounting arrangement for a marine radio distress beacon Oct. 9, 1990
4932910 Emergency location marker system Jun. 12, 1990

1 2










 
 
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