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Parent Industries
E
FIXED CONSTRUCTIONS
E21
Mining
E21F
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
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E21F16/00
Drainage
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E21F16/02
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Patents Grants
last 30 patents
Information
Patent Grant
Mining method without coal pillars with roof-cutting and roadway re...
Patent number
12,168,931
Issue date
Dec 17, 2024
CHINA UNIVERSITY OF MINING & TECHNOLOGY, BEIJING
Jiong Wang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for dewatering coal mine goaf by crossing neighboring goaf
Patent number
12,146,410
Issue date
Nov 19, 2024
PING AN COAL MINING ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD
Qingfa Liao
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tracer diffusion device, system for tracing development of water co...
Patent number
12,091,971
Issue date
Sep 17, 2024
CHINA UNIVERISTY OF MINING AND TECHNOLOGY, BEIJING
Yifan Zeng
E21 - EARTH DRILLING MINING
Information
Patent Grant
Blockage-proof water diversion and drainage devices for highway tun...
Patent number
12,084,973
Issue date
Sep 10, 2024
Northwest Institute of Eco-Environment and Resources, CAS
Guoyu Li
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Flood protection for underground air vents
Patent number
11,946,376
Issue date
Apr 2, 2024
FLOODBREAK L.L.C.
Louis A. Waters
E21 - EARTH DRILLING MINING
Information
Patent Grant
Brine extraction well system
Patent number
11,933,179
Issue date
Mar 19, 2024
GENESIS ALKALI WYOMING, LP
Adam Clark Anderson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Ultra-long tunnel sewage disposal, separation and drainage structur...
Patent number
11,753,937
Issue date
Sep 12, 2023
CCCC Second Highway Consultants Co., Ltd.
Yong Cheng
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for constructing dam inside dump of inner-dump strip mine
Patent number
11,674,393
Issue date
Jun 13, 2023
China University of Mining and Technology
Shuzhao Chen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tunnel adaptive lining structure in complex environment and constru...
Patent number
11,499,427
Issue date
Nov 15, 2022
China Institute of Water Resources and Hydropower Research
Xiaogang Wang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Liquid taking device and liquid taking method
Patent number
11,242,752
Issue date
Feb 8, 2022
Hongling Ma
E21 - EARTH DRILLING MINING
Information
Patent Grant
Draining mesh module and a method of operating a draining mesh in a...
Patent number
10,871,070
Issue date
Dec 22, 2020
Dolenco Group APS
Johnny René Poulsen
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
System and method for forming a cavity in a backfilled stope
Patent number
10,774,644
Issue date
Sep 15, 2020
Sturda Inc.
Robert Lamond
E21 - EARTH DRILLING MINING
Information
Patent Grant
Fissured substrata water pumping apparatus and method
Patent number
9,850,747
Issue date
Dec 26, 2017
CHINA UNIVERSTIY OF MINING AND TECHNOLOGY
Zhanguo Ma
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mine dewatering system and method
Patent number
9,822,641
Issue date
Nov 21, 2017
WSP GLOBAL, INC.
Jeremy Dowling
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Pump apparatus
Patent number
9,759,056
Issue date
Sep 12, 2017
Peter Smit
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Method for distributed storage and use of underground water in mine
Patent number
9,371,185
Issue date
Jun 21, 2016
China Shenhua Energy Company Limited
Dazhao Gu
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Method of collecting hydrocarbons using a barrier tunnel
Patent number
7,644,769
Issue date
Jan 12, 2010
OSUM Oil Sands Corp.
Michael H. Kobler
E21 - EARTH DRILLING MINING
Information
Patent Grant
Structure of intermediate wall of three arch excavated tunnel and m...
Patent number
7,530,765
Issue date
May 12, 2009
Dong-Hyung Seo
E21 - EARTH DRILLING MINING
Information
Patent Grant
Device and a method for drainage of water from rock caves
Patent number
7,513,712
Issue date
Apr 7, 2009
Giertsen Tunnel AS
Alv Hanstvedt
E21 - EARTH DRILLING MINING
Information
Patent Grant
Waterproof cladding construction and method of providing the same
Patent number
6,761,504
Issue date
Jul 13, 2004
MBT Holding AG
Rolf Brandenberger
E21 - EARTH DRILLING MINING
Information
Patent Grant
Installation for storing of natural gas
Patent number
6,368,018
Issue date
Apr 9, 2002
Sydkraft AB
Jan Hugo Johansson
F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information
Patent Grant
Silicon carbide reinforced silicon carbide composite
Patent number
6,245,424
Issue date
Jun 12, 2001
Saint-Gobain Industrial Ceramics, Inc.
Sai-Kwing Lau
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Process for making silicon carbide reinforced silicon carbide compo...
Patent number
5,840,221
Issue date
Nov 24, 1998
Saint Gobain/Norton Industrial Ceramics Corporation
Sai-Kwing Lau
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Insulating tunnel liner system
Patent number
5,470,178
Issue date
Nov 28, 1995
Raymond L. Weholt
E21 - EARTH DRILLING MINING
Information
Patent Grant
Fluid pressure feeding apparatus
Patent number
5,261,794
Issue date
Nov 16, 1993
Hitachi, Ltd.
Yukishige Kamino
E21 - EARTH DRILLING MINING
Information
Patent Grant
Dewatering screen manufacture and method thereof
Patent number
4,634,045
Issue date
Jan 6, 1987
Alan D. Baldwin
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method in the excavation of underground caverns in rock
Patent number
4,572,707
Issue date
Feb 25, 1986
Boliden Aktiebolag
Ivar K. Sagefors
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for the filling of a slurry sump
Patent number
4,359,298
Issue date
Nov 16, 1982
Conoco Inc.
Frederick A. Webb
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Method for dewatering a subterranean formation via a borehole
Patent number
4,349,228
Issue date
Sep 14, 1982
Consolidation Coal Company
Edward C. Rohde
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of using admixture of water-soluble polymers in latex form a...
Patent number
4,300,861
Issue date
Nov 17, 1981
Nalco Chemical Company
Joseph F. Vartiak
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
TRACER DIFFUSION DEVICE, SYSTEM FOR TRACING DEVELOPMENT OF WATER CO...
Publication number
20240141783
Publication date
May 2, 2024
CHINA UNIVERSITY OF MINING & TECHNOLOGY, BEIJING
Yifan ZENG
E21 - EARTH DRILLING MINING
Information
Patent Application
Mining Method Without Coal Pillars With Roof-Cutting And Roadway Re...
Publication number
20230258083
Publication date
Aug 17, 2023
CHINA UNIVERSITY OF MINING & TECHNOLOGY, BEIJING
Jiong Wang
E21 - EARTH DRILLING MINING
Information
Patent Application
Brine Extraction Well System
Publication number
20230228194
Publication date
Jul 20, 2023
Genesis Alkali Wyoming, LP
Adam Clark Anderson
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR CONSTRUCTING DAM INSIDE DUMP OF INNER-DUMP STRIP MINE
Publication number
20220333486
Publication date
Oct 20, 2022
China University of Mining and Technology
Shuzhao CHEN
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
Ultra-Long Tunnel Sewage Disposal, Separation and Drainage Structur...
Publication number
20220316337
Publication date
Oct 6, 2022
CCCC Second Highway Consultants Co., Ltd.
Yong Cheng
E21 - EARTH DRILLING MINING
Information
Patent Application
FLOOD PROTECTION FOR UNDERGROUND AIR VENTS
Publication number
20220268158
Publication date
Aug 25, 2022
Floodbreak, L.L.C.
Louis A. Waters
E21 - EARTH DRILLING MINING
Information
Patent Application
TUNNEL ADAPTIVE LINING STRUCTURE IN COMPLEX ENVIRONMENT AND CONSTRU...
Publication number
20220120183
Publication date
Apr 21, 2022
CHINA INSTITUTE OF WATER RESOURCES AND HYDROPOWER RESEARCH
Xiaogang Wang
E21 - EARTH DRILLING MINING
Information
Patent Application
LIQUID TAKING DEVICE AND LIQUID TAKING METHOD
Publication number
20200378257
Publication date
Dec 3, 2020
Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
Hongling MA
E21 - EARTH DRILLING MINING
Information
Patent Application
A Draining Mesh Module and a Method of Operating a Draining Mesh in...
Publication number
20190338641
Publication date
Nov 7, 2019
Dolenco Group ApS
Johnny René Poulsen
E21 - EARTH DRILLING MINING
Information
Patent Application
SYSTEM AND METHOD FOR FORMING A CAVITY IN A BACKFILLED STOPE
Publication number
20190032486
Publication date
Jan 31, 2019
Sturda Inc.
Robert Lamond
E21 - EARTH DRILLING MINING
Information
Patent Application
A WELL SYSTEM
Publication number
20170226840
Publication date
Aug 10, 2017
Christopher James CONNELL
E21 - EARTH DRILLING MINING
Information
Patent Application
SHIELDED DRAINING PIPE MESH
Publication number
20160061034
Publication date
Mar 3, 2016
Lars JÖNSSON
E21 - EARTH DRILLING MINING
Information
Patent Application
Underground Silo System for Storing Liquids
Publication number
20150368892
Publication date
Dec 24, 2015
Safieh Gorjan
E03 - WATER SUPPLY SEWERAGE
Information
Patent Application
PUMP APPARATUS
Publication number
20140332095
Publication date
Nov 13, 2014
WEIR MINERALS AUSTRALIA LTD
Peter Smit
B60 - VEHICLES IN GENERAL
Information
Patent Application
Mine Dewatering System And Method
Publication number
20130192822
Publication date
Aug 1, 2013
SCHLUMBERGER TECHNOLOGY CORPORATION
Jeremy Dowling
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
Method and product for absorbing and consolidating nuisance water o...
Publication number
20100189507
Publication date
Jul 29, 2010
Duncan Hird
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Application
METHOD OF COLLECTING HYDROCARBONS USING A BARRIER TUNNEL
Publication number
20080087422
Publication date
Apr 17, 2008
OSUM OIL SANDS CORP.
Michael H. Kobler
E21 - EARTH DRILLING MINING
Information
Patent Application
Structure of intermediate wall of three arch excavated tunnel and m...
Publication number
20060165489
Publication date
Jul 27, 2006
Dong-Hyun SEO
Dong-Hyun Seo
E21 - EARTH DRILLING MINING
Information
Patent Application
Device and a method for drainage of water from rock caves
Publication number
20050097845
Publication date
May 12, 2005
Giertsen Tunnel AS
Alv Hanstvedt
E21 - EARTH DRILLING MINING
Information
Patent Application
Installation for storing of natural gas
Publication number
20010002969
Publication date
Jun 7, 2001
Jan Hugo Johansson
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL