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Class Information
Number: 340/850
Name: Communications: electrical > Underwater
Description: Subject matter in which a significant portion of the communication takes place under water.










Sub-classes under this class:

Class Number Class Name Patents
340/852 Electrodes and electrode systems 41
340/851 Ship guidance system 13


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8682244 Underwater communication system Mar. 25, 2014
8659435 Waterproof optically-sensing fiberless-optically-communicating vitality monitoring and alarming system, particularly for swimmers and infants Feb. 25, 2014
8638229 Swim watch Jan. 28, 2014
8577288 Subsea transfer system providing wireless data transfer, electrical power transfer and navigation Nov. 5, 2013
8570185 Wireless underwater hull inspection system Oct. 29, 2013
8537027 Method for controlling an electronic device and electronic device Sep. 17, 2013
8515344 Diver communication system Aug. 20, 2013
8515343 Water based vehicle communications system Aug. 20, 2013
8492927 Universal power supply system Jul. 23, 2013
8475083 Umbilical for underwater diving Jul. 2, 2013
8385821 Underwater vehicle communications system Feb. 26, 2013
8364078 Communications system Jan. 29, 2013
8358973 Communications system Jan. 22, 2013
8346164 Underwater communication system Jan. 1, 2013
8346165 Diver audio communication system Jan. 1, 2013
8340844 Undersea position and velocity measuring system and process Dec. 25, 2012
8335469 Communications system Dec. 18, 2012
8331856 Underwater camera communication system Dec. 11, 2012
8330614 Low power telemetry system and method Dec. 11, 2012
8325056 System for underwater communications comprising fluid modifying means Dec. 4, 2012
8326219 Communications system Dec. 4, 2012
8315560 Underwater navigation Nov. 20, 2012
8305227 Wireless auxiliary monitoring and control system for an underwater installation Nov. 6, 2012
8299936 Method and apparatus for establishing low frequency/ultra low frequency and very low frequency communications Oct. 30, 2012
8275493 Bow riding unmanned water-borne vehicle Sep. 25, 2012
8207864 Underwater detection device Jun. 26, 2012
8185268 User interface for a vehicle installed communication device May. 22, 2012
8131213 Sea vessel tagging apparatus and system Mar. 6, 2012
8120507 Two-tier streamer communication system Feb. 21, 2012
8106536 Universal power supply system Jan. 31, 2012
8094518 Inter-diver signaling device and process Jan. 10, 2012
8055193 Underwater remote sensing Nov. 8, 2011
8045919 Electromagnetic/acoustic underwater communications system Oct. 25, 2011
8005424 Communication device and communication method of underwater vehicle Aug. 23, 2011
7889085 Swim watch Feb. 15, 2011
7877059 Underwater communications system comprising relay transceiver Jan. 25, 2011
7873316 Underwater communications system Jan. 18, 2011
7865139 Method and system for relaying signals from a magneto-inductive system through a voice-band system Jan. 4, 2011
7853206 Underwater communications system with adaptable carrier frequency Dec. 14, 2010
7826794 Distributed underwater electromagnetic communication system Nov. 2, 2010
7711322 Underwater communications system and method May. 4, 2010
7650208 Navigational aid for diver Jan. 19, 2010
7642919 Signalling and localization device for an individual in the sea and method of use thereof Jan. 5, 2010
7612686 Emergency underwater notification device Nov. 3, 2009
7576447 Control and supply system Aug. 18, 2009
7466629 Manually agitated underwater signaling device Dec. 16, 2008
7436324 Maritime port inspection and ingress control Oct. 14, 2008
7388512 Diver locating method and apparatus Jun. 17, 2008
7365650 Underwater RF propagation path Apr. 29, 2008
7336198 Magnetostatic communication Feb. 26, 2008

1 2 3










 
 
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