| Patents for G01C 13 - Surveying specially adapted to open water, e.g. sea, lake, river or canal (1,002) |
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| 08/31/2011 | CN101813476B Three-dimensional real-time monitoring system for offshore wave parameters |
| 08/31/2011 | CN101738179B Inductive coupling-based anchoring self-lifting profile monitoring buoy |
| 08/31/2011 | CN101726285B Hydraulic driving adjustment device for underwater measurement platform |
| 08/31/2011 | CN101634721B Historical data based intelligent early warning system for typhoon and flood |
| 08/18/2011 | WO2011100677A1 System and method for controlling poll worker actions |
| 08/17/2011 | CN102155938A Measuring method for inversing reservoir feeding flow procedures |
| 08/17/2011 | CN101788289B Steady demixing blend-free water feeding device |
| 08/10/2011 | CN101655462B Apparatus for obtaining water quality information, method and system for recognizing water body eutrophication degree |
| 08/09/2011 | US7995190 Procedure and a device for measuring distance |
| 08/03/2011 | CN102141400A Automatic section observation system of under-ice sea |
| 08/03/2011 | CN101592488B Information entropy theory based noise canceling method in hydrological sequence analysis |
| 08/03/2011 | CN101532836B Environmental loading measuring device of ocean engineering model and use method thereof |
| 07/27/2011 | CN201907635U Self-heaving detecting buoy capable of reaching to bottom for marine environment |
| 07/27/2011 | CN101581582B Ocean landscape spherical viewing cabin |
| 07/21/2011 | WO2011085525A1 Split type buoy device for warning of oil spill |
| 07/20/2011 | CN201903348U Monitoring device for soil displacement and pore water pressure of seabed |
| 07/13/2011 | CN201897472U Multichannel depth sounder using multichannel electronic switch |
| 06/29/2011 | CN1967618B Real-time transmission buoy device |
| 06/29/2011 | CN102109344A Portable corrosion-proof micro-organism growth-proof tide gauge |
| 06/29/2011 | CN102109343A Undersea sediment acoustic parameter in-situ measuring system |
| 06/22/2011 | EP2336716A2 Method and apparatus for alerting surface vessels to hazardous conditions |
| 06/22/2011 | CN102103201A Wetland data acquisition method and system of multi-task mode |
| 06/08/2011 | CN201859533U Tide level data transmission and control system based on compass satellite system |
| 06/08/2011 | CN102087107A Tethered multi-sensor collaboratively optimized offshore wave-measuring buoy and filtering fusion method thereof |
| 06/01/2011 | CN201852611U Ice water interface detection system for polar region |
| 05/25/2011 | EP2325603A1 High-contrast capillary depth gauge and watch comprising such a depth gauge |
| 05/18/2011 | CN201837485U Fiber bragg grating detection system for temperature and depth of seawater |
| 05/18/2011 | CN201837390U Observing scaffold of ocean current instrument |
| 05/18/2011 | CN102062600A High-contrast capillary depth gauge and watch comprising such a depth gauge |
| 05/11/2011 | CN102052918A Dynamic swampiness monitoring and prewarning technology based on lake aquatic vegetation spreading |
| 05/11/2011 | CN102052917A Underwater environmental monitoring wireless data acquisition and transmission device |
| 05/11/2011 | CN102051871A Embedded watercourse floating pollutant vision detecting device |
| 05/04/2011 | EP2167916B1 Device and method for operator guidance of a ship |
| 05/04/2011 | CN201820144U Serial communication and fault diagnosis device of unmanned underwater robot |
| 05/04/2011 | CN201819686U Hydrology monitoring device |
| 04/27/2011 | EP1886197B1 System for launching marine probes |
| 04/27/2011 | CN102030081A Data transmission buoy released in deep ocean |
| 04/27/2011 | CN101650763B Method for rapidly analyzing season difference of ecological water need |
| 04/20/2011 | EP2312271A2 Method of determining swell sizes |
| 04/20/2011 | CN101549744B Hybrid multifunctional ocean monitoring independent platform |
| 04/06/2011 | CN201787941U Self-supporting section detecting buoy |
| 03/30/2011 | CN101995241A Air-gap ultrasonic wave gauge |
| 03/16/2011 | CN1721816B Method for detecting the start of a dive for a dive computer |
| 03/09/2011 | CN201757647U Wave monitoring system for integration buoy |
| 02/24/2011 | WO2011021490A1 Method for measuring sea waves by means of ultrasonic waves, as well as sea wave measuring system |
| 02/23/2011 | CN101980311A Method for giving alarm to low oxygen phenomenon of inshore ocean by monitoring buoys |
| 02/16/2011 | CN201748922U Wind wave element value live-action monitoring system |
| 01/27/2011 | US20110016966 Current measuring method |
| 01/26/2011 | CN201724672U Water surface and river bottom signal device |
| 01/13/2011 | WO2011003415A1 Method of a measuring environment facilitating a validity check of data sets from measurements |
| 01/12/2011 | CN101944161A Calculation method of ecological water demand of wetland based on evaluation of disturbance degree of ecological system |
| 01/12/2011 | CN101644572B Detection method of ocean eddy variation based on historical similarity cases |
| 01/12/2011 | CN101604356B Establishing method of uncertainty mid-term and long-term hydrological forecasting model |
| 01/05/2011 | CN101586956B River water level monitoring method based on monocular camera |
| 12/29/2010 | WO2010148462A1 Method and device for determining a rheological transition level |
| 12/29/2010 | CN201685813U Sonar probe anti-collision protection device of unmanned air cushion surveying boat |
| 12/22/2010 | CN201681156U Wetland data acquisition system in multitasking mode |
| 12/16/2010 | WO2010080993A3 Sensor, methods of calibrating a sensor, methods of operating a sensor |
| 12/15/2010 | CN201672926U Inland waterway water depth easy measuring device based on GPS |
| 12/15/2010 | CN201672919U Medium-and-long-distance full-automatic self-adaptive wave measuring buoy |
| 12/08/2010 | CN101576382B Water conservancy monitoring method based on three-dimensional display platform |
| 12/02/2010 | WO2010138624A1 System and method for determining wave characteristics from a moving platform |
| 11/24/2010 | CN201653413U Basic matrix type wave monitoring device |
| 11/24/2010 | CN101893438A Boosting cable-laying suspender device |
| 11/24/2010 | CN101891130A Ship speed compensation hydraulic winch and control method thereof |
| 11/17/2010 | CN201637464U Direct automatic tidal current survey system |
| 11/17/2010 | CN201637412U Disposable hydrographic surveying equipment using light-guide fibre for carrying out data transmission |
| 11/17/2010 | CN201637411U Distributed ocean surveying system based on wireless data transmission technology |
| 11/17/2010 | CN201637410U Underwater section measuring device |
| 10/20/2010 | CN101865689A Valley salt tide prediction method |
| 10/20/2010 | CN101865688A Vessel-mounted preset terrain mode water body vertical section investigation system and method |
| 10/20/2010 | CN101865687A River basin ecological water demand integration analysis technology |
| 10/13/2010 | CN101218602B Image processor and environment information observing device |
| 10/06/2010 | CN101852610A Auxiliary fixing device of portable ocean current profile instrument |
| 09/29/2010 | CN101846515A Device capable of quickly getting depth profile data of sea water temperature |
| 09/22/2010 | CN201589614U Multiple-carrier channel accessed wireless communication network hydrographic multiparameter metering instrument |
| 09/22/2010 | CN201587525U Small-sized unmanned self-propelled ocean flux observation ship |
| 09/15/2010 | CN201583277U Ball floating-type solar energy monitoring device for tsunami and flood |
| 09/15/2010 | CN201583276U Fixing and laying device of deep-water measuring instrument |
| 09/15/2010 | CN101509769B Measurement control method for underwater self-containing measuring apparatus |
| 08/25/2010 | CN101813476A Three-dimensional real-time monitoring system for offshore wave parameters |
| 08/25/2010 | CN101257424B Underwater wireless sensor network cover control method based on surface even allocation |
| 08/18/2010 | CN101806594A Array type wave monitoring device and wave measurement method thereof |
| 08/18/2010 | CN101487704B Submerged buoy for ocean monitoring |
| 08/11/2010 | CN101799376A Suspension device for probing falling body |
| 08/11/2010 | CN101799294A Wireless remote control tripping device based on microcontroller |
| 08/04/2010 | CN201540127U Device for automatically metering channel flow |
| 08/04/2010 | CN101793519A Faller device |
| 08/04/2010 | CN101793518A Vessel-mounted multi-parameter comprehensive water body vertical section survey system and method |
| 07/28/2010 | EP0820400B3 Mooring bed assessment apparatus and method |
| 07/28/2010 | CN201535674U Gravity hydrological cableway |
| 07/28/2010 | CN101789055A Artificial interference river ecology water demand threshold value calculation method |
| 07/28/2010 | CN101788289A Steady demixing blend-free water feeding device |
| 07/22/2010 | US20100185348 Autonomous underwater vehicle with current monitoring |
| 07/21/2010 | CN101782389A Quick environment flow evaluation technique |
| 07/21/2010 | CN101782388A Multi-scale river health characterization and evaluation method |
| 07/21/2010 | CN101782387A Remote hydrographic water resource data collecting and processing system |
| 07/15/2010 | WO2010080993A2 Sensor, methods of calibrating a sensor, methods of operating a sensor |
| 07/14/2010 | CN101776452A Active three-dimensional omnidirectional vision-based river width measuring device |
| 07/07/2010 | CN201523387U Anchoring self-lifting section monitoring buoy |