| Patents for E21C 45 - Methods of hydraulic mining; Hydraulic monitors (347) |
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| 02/05/2015 | WO2015016460A1 Automatic optical photographing system for ocean pillar drilling core specimen and photographing method therefor |
| 01/22/2015 | DE112014000088T5 Hochdruckwasserstrahlunterstützter Schneidmechanismus für eine Vortriebsmaschine High pressure water jet-assisted cutting mechanism for a tunneling machine |
| 12/17/2014 | CN104213921A 基于水力割缝的冻结式石门揭煤方法 Based slotting freeze formula method Cross Cut |
| 12/10/2014 | CN103195429B 掘进机高压水射流辅助截割机构 TBM pressure water jet assisted cutting mechanism |
| 09/18/2014 | WO2014139339A1 High-pressure water jet assisted cutting mechanism for heading machine |
| 08/21/2014 | WO2014126535A1 A seafloor nodule concentrating system and method |
| 08/05/2014 | US8794710 Deep undersea mining system and mineral transport system |
| 05/14/2014 | CN103797215A 用于海底储存的系统和方法 System and method for subsea storage |
| 05/08/2014 | WO2014070519A1 Mineral suspending agent, method of making, and use thereof |
| 05/08/2014 | WO2014069803A1 Bi-directional manganese nodule light gathering equipment |
| 05/07/2014 | CN203584431U 一种可更换喷嘴的高压喷头 For an interchangeable nozzle high pressure nozzle |
| 04/24/2014 | WO2014059777A1 High-pressure pneumatic blasting pressure relieving and transmission increasing method |
| 04/23/2014 | EP2721254A1 System and method for seafloor stockpiling |
| 04/17/2014 | CA2829580A1 Horizontally rotatable multi-knuckle boom |
| 04/09/2014 | CN103717835A Apparatus and method for seafloor stockpiling |
| 03/19/2014 | CN203488179U Multifunctional coal winning machine |
| 02/26/2014 | CN103603666A Tailing pond sand excavation method |
| 02/12/2014 | EP2694779A1 Apparatus and method for seafloor stockpiling |
| 01/30/2014 | US20140028078 Hyper-Pressure Pulse Excavator |
| 01/08/2014 | CN103502538A Apparatus and method for the dredging of sediments from the seabed |
| 12/25/2013 | EP2675954A1 Apparatus and method for the dredging of sediments from the seabed |
| 12/25/2013 | CN103470264A Water jet cutter |
| 10/01/2013 | CA2735901C Deep sea mining riser and lift system |
| 09/18/2013 | CN203201561U Safe and efficient submersible mixer for gangue water stoping |
| 09/18/2013 | CN203201560U Safe high-efficiency high-pressure-water cutting adapter sleeve for mining drill bit |
| 09/12/2013 | WO2012153169A8 Apparatus and method for the dredging of sediments from the seabed |
| 08/28/2013 | CN103266894A Borehole hydraulic mining side-spraying device |
| 08/14/2013 | CN203130085U Mounting base of spraying device of heading machine in coal mine |
| 07/24/2013 | CN103216240A Hydroextraction equipment and method of tailings |
| 07/10/2013 | CN103195429A High pressure water jet assisted cutting mechanism for heading machine |
| 07/10/2013 | CN103195423A Multi-point sealing apparatus for auxiliary high-pressure water jet of cutting mechanism of digging device |
| 05/23/2013 | US20130127231 Hydraulic Mining System for Tabular Orebodies Utilising Directional Drilling |
| 05/08/2013 | CN103089269A Method for cutting and pre-breaking top coal to improve mining efficiency by utilizing water power |
| 05/08/2013 | CN101649742B Simple and convenient hydraulic mining method and equipment |
| 04/18/2013 | WO2013006966A3 Method for the in situ recovery of heavy oil from a subterranean deposit |
| 04/17/2013 | CN202882927U Ultra high pressure water jet cutting coal sample preparer |
| 04/10/2013 | CN103029174A Control system for coal mine underground water-jet cutting machine |
| 04/04/2013 | WO2013048241A1 Cutting device for an underwater excavation system |
| 01/30/2013 | EP2550430A1 Pulsed water-jet apparatus |
| 01/30/2013 | EP2550426A1 Manifold string for selectively controlling flowing fluid streams of varying velocities in wells from a single main bore |
| 01/30/2013 | EP2550422A1 Pressure controlled well construction and operation systems and methods usable for hydrocarbon operations, storage and solution mining |
| 01/30/2013 | CN202707050U Novel mine entry-driving machine auxiliary cutting device |
| 01/30/2013 | CN102906371A Pulsed water-jet apparatus |
| 01/23/2013 | EP2547939A1 Installation method of flexible pipe with subsea connector, utilizing a pull down system |
| 01/23/2013 | CN202690061U Coal seam roof cutting device |
| 01/17/2013 | CA2877897A1 Method for the in situ recovery of heavy oil from a subterranean deposit |
| 12/27/2012 | WO2012143851A3 Water treatment system |
| 12/26/2012 | CN202628100U Water jet cutting support device for open pit coal mine plant |
| 12/20/2012 | WO2012171075A1 Apparatus and method for seafloor stockpiling |
| 12/20/2012 | WO2012171074A1 System and method for seafloor stockpiling |
| 12/12/2012 | CN102165119B Deep sea mining riser and lift system |
| 12/05/2012 | CN101571043B Salt strata drilling and channeling method based on high-speed water jet technology |
| 11/28/2012 | CN102797465A Underground ultra-thin virtual protection layer hydraulic coal mining method |
| 11/15/2012 | WO2012153169A1 Apparatus and method for the dredging of sediments from the seabed |
| 11/15/2012 | CA2825501A1 Dredging apparatus and method for removing sediments from a water bed |
| 11/14/2012 | CN102777183A Baseboard lane hydraulic coal mining process |
| 10/10/2012 | CN202483575U Mining cutting knife for water conservancy |
| 10/10/2012 | CN102725477A Determining methane content of a bottom sample |
| 09/19/2012 | CN202441381U Waterpower self-spinning type cutting spray nozzle having suck-back prevention function |
| 08/29/2012 | CN202402037U Waterjet coal cutter |
| 08/07/2012 | CA2434329C Method of barge mining oil sands |
| 07/18/2012 | CN102587917A Coal breaking process by spalling method |
| 06/13/2012 | CN101545366B An underwater mining method and its devices |
| 05/02/2012 | EP2446106A2 Apparatus and methods for forming and using subterranean salt cavern |
| 01/26/2012 | WO2012009759A1 Hydraulic mining system for tabular orebodies utilising directional drilling techniques |
| 01/26/2012 | CA2806084A1 Hydraulic mining system for tabular orebodies utilising directional drilling techniques |
| 01/04/2012 | CN102308059A Method for converting hydrates buried in the waterbottom into a marketable hydrocarbon composition |
| 12/22/2011 | US20110309668 Method for converting hydrates buried in the waterbottom into a marketable hydrocarbon composition |
| 12/14/2011 | CN202073566U 一种远程监控液动高压水枪 A Remote Monitoring hydraulic water cannons |
| 12/07/2011 | CN202064957U 便携式煤矿用磨料水射流切割机 Portable Mine abrasive water jet cutting machine |
| 12/07/2011 | CN102268992A 一种尾矿库取砂方法及取砂装置 Take one kind of tailings sand method and apparatus to take sand |
| 11/03/2011 | WO2011134733A1 Laser cutter suction dredger |
| 11/02/2011 | EP2383394A1 Laser cutter suction dredger |
| 10/06/2011 | WO2011122942A1 Submersible dredging device, assembly of a riser system and submersible dredging device, vessel and method of driving a slurry pump |
| 09/29/2011 | WO2011116420A1 Pulsed water-jet apparatus |
| 09/29/2011 | CA2793932A1 Pulsed water-jet apparatus |
| 09/27/2011 | CA2579245C Method of intensification of natural gas production from coal beds |
| 09/22/2011 | WO2011115886A1 Installation method of flexible pipe with subsea connector, utilizing a pull down system |
| 09/22/2011 | CA2791259A1 Installation method of flexible pipe with subsea connector, utilizing a pull down system |
| 08/24/2011 | EP2358974A1 Systems and methods for operating a plurality of wells through a single bore |
| 08/24/2011 | CN102165119A Deep sea mining riser and lift system |
| 07/28/2011 | WO2010150010A4 Apparatus and methods for forming and using subterranean salt cavern |
| 07/14/2011 | WO2011082870A1 Determining methane content of a bottom sample |
| 07/13/2011 | EP2342384A1 Deep sea mining riser and lift system |
| 06/23/2011 | WO2011072963A1 Converting an underwater methane hydrate containing deposit into a marketable product |
| 06/01/2011 | CN102084086A A method of mining and processing seabed sediment |
| 05/11/2011 | EP2318657A1 A method of mining and processing seabed sediment |
| 05/05/2011 | WO2010150010A3 Apparatus and methods for forming and using subterranean salt cavern |
| 03/23/2011 | CN201771509U Hydraulic power self-rotation cutter |
| 01/20/2011 | WO2011008447A1 Deep unersea mining system and mineral transport system |
| 12/22/2010 | EP2262577A2 Separator for receiving a pressurized fluid containing as a minimum a solid material and a liquid, and associated device and method. |
| 09/08/2010 | EP2226466A1 Method for producing a marketable hydrocarbon composition from a hydrate deposit buried in the waterbottom |
| 08/19/2010 | WO2010093514A1 System and method of utilizing monitoring data to enhance seafloor sulfide production for deepwater mining system |
| 08/19/2010 | WO2010092145A1 Method for converting hydrates buried in the waterbottom into a marketable hydrocarbon composition |
| 08/19/2010 | CA2749678A1 Method for converting hydrates buried in the waterbottom into a marketable hydrocarbon composition |
| 05/26/2010 | CN101711929A Process for fully dehydrating coal under hydraulic coal mining well |
| 05/12/2010 | CN201460891U Jet device of coal mine and coal bunker straining device |
| 04/21/2010 | CA2642181A1 Method to speed up the consolidation process of tailing slurry by embedded drainage system |
| 04/07/2010 | EP2171163A2 Device for extracting a material from the bed of a body of water and associated method |
| 04/01/2010 | WO2010036278A1 Deep sea mining riser and lift system |