Method and a system for monitoring a sea area

Method and apparatus enabling remote release of hooks and...

Method and apparatus for determining physical quantities

Method and apparatus for verifying the location of a seismic bot

Method for extending GPS to underwater applications

Methods and apparatuses for seismic prospecting

Navigation system and method for determining the position of a r

Object position and condition detection system

Ocean acoustic tomography

Pipe measuring method and apparatus

Position and velocity measuring system

Precision transponder and method of communicating therewith

Pressure responsive clasp

Programmable multichannel sonobuoy transmitter

Programmable pulse shaper for sonobouy apparatus

Radial damper disk

Radio telemetry buoy for long-range communication

Reception of uplink data from sonobuoys

Releasable airborne buoy

Remote-control system for closures