SYSTEM AND METHOD FOR UNDERWATER PAYLOAD ESTIMATION IN DRAGLINE BUCKET

SUBMERSIBLE UNDERWATER DREDGE WITH INTEGRATED METAL DETECTOR

SURFACE LAYER IMPROVEMENT SYSTEM AND METHODS FOR ON-SITE REMEDIATION OF CONTAMINATED SEDIMENTS

INTELLIGENT DREDGING SYSTEM FOR HIGH-PILED WHARF AND CONTROL METHOD THEREOF

WATER DIGGER

SYSTEM AND METHODS FOR UNDERWATER WORKS

METHOD AND APPARATUS FOR A BUOYANCY VESSEL FOR DEEP-SEA MINING

DREDGE STABILIZATION AND MOVEMENT SYSTEM

Device, system and method for correlating core sample zones with actual subterranean depth

SYSTEM AND METHODS FOR UNDERWATER WORKS

De-trenching apparatus

EXCAVATOR BUCKET FOR UNDERWATER USE

Apparatus and method for seabed resources collection

Dragging apparatus with ripper shank

Submarine shallow hydrate exploitation device and exploitation method thereof

Hydraulic excavation around a pipeline buried under shallow water

Device, system and method for correlating core sample zones with actual subterranean depth

SUBSEA CLEARING APPARATUS

Impeller with rotor blades for centrifugal pump

Carouseling articulated dredge and barge

Stirring device

Seabed Plow Capable of Over-the-Stern Release and Retrieval in Any Boulder Clearing, Trenching and Backfill Configurations

Cluster-type deep-sea submarine mining equipment based on vortex hydrodynamic characteristics

DEVICE FOR LIFTING AND RECOVERING SEABED RESOURCE

System and method thereof for off shore mining

MINERAL LIFTING SYSTEM AND MINERAL LIFTING METHOD

Jet trenching system

Dredging apparatus and method of dredging

DITCH DIGGING AND DITCH CLEANING APPARATUS

Cleaning device for cleaning an underwater ground-working apparatus and method

Excavating pump apparatus and pile installation apparatus comprising same

Density measurement system and method

Device and method for dredging a watercourse or body of water, bag for plant matter, and method for storing plant matter

Gearbox for a dredging vessel

Seabed Plow Chassis Capable of Over-the-Stern Release and Retrieval in Any of Boulder Clearing, Trenching and Backfill Configurations

Excavation System

Device for receiving and removing plastic, sludge-like materials deposited on beds of bodies of water

Underwater trenching apparatus

Seabed backfill plow and method

Method for dredging an underwater bottom in an area using a dredging device

MARINE VESSEL MOUNTED MACHINE SYSTEM

Seabed resource lifting device

Method and device for deepening riverbeds and their cleaning from sediments

Digging machine

Device and method for burying a conduit in the bed of a body of water

Seafloor nodule concentrating system and method

Self cleaning collection apparatus and method

METHOD AND APPARATUS FOR UNDERWATER PILE EXCAVATING

TRENCH CUTTING APPARATUS AND METHOD

Air cloud particle suspension dredge

Drag head and trailing suction hopper dredger

Device for removing sea bed

APPARATUS AND METHOD FOR SEAFLOOR STOCKPILING

Apparatus for the dredging of sediments from the seabed

Method and device for underwater recovery of products or pollutants

Method and apparatus for auxilary seafloor mining

Self-emptying vacuum apparatus for use by gold prospectors

SEA BED LEVELLING AND CONSOLIDATION SYSTEM

Determining methane content of a bottom sample

MUD/SLUDGE REMOVING DEVICE

Group and method for laying and burying pipelines at the seafloor

Dredging apparatus

Fluid jets

Deep undersea mining system and mineral transport system

Underwater Excavation Tool

Underwater excavation apparatus

System and method of utilizing monitoring data to enhance seafloor sulfide production for deepwater mining system

Underwater sediment evacuation system

Deep sea mining riser and lift system

Assembly for harvesting shellfish such as scallops and alike

Underwater dredging system

Dredger Cuttertooth Manipulator

Underwater sediment management

Amphibious robot devices

Marine backhoe dredge

Amphibious robot devices and related methods

Carouseling articulated dredge and barge

Jet trenching system

Jet trenching system