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Ventilation of mines or tunnels Distribution of ventilating currents
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E21F1/00
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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
Current Industry
E21F1/00
Ventilation of mines or tunnels Distribution of ventilating currents
Sub Industries
E21F1/003
Ventilation of traffic tunnels
E21F1/006
Ventilation at the working face of galleries or tunnels
E21F1/02
Test models
E21F1/04
Air ducts
E21F1/06
Duct connections
E21F1/08
Ventilation arrangements in connection with air ducts
E21F1/085
using compressed gas injectors
E21F1/10
Air doors
E21F1/12
Devices for automatically opening air doors
E21F1/14
Air partitions Air locks
E21F1/145
Air locks
E21F1/16
Shaft covers
E21F1/18
Gravity flow ventilation
Industries
Overview
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Systems and methods for automated control of a beam stageloader boo...
Patent number
12,017,859
Issue date
Jun 25, 2024
Joy Global Underground Mining LLC
Benjamin John Robert Lepre
E21 - EARTH DRILLING MINING
Information
Patent Grant
Systems and methods for automated control of a beam stageloader boo...
Patent number
12,017,858
Issue date
Jun 25, 2024
Joy Global Underground Mining LLC
Benjamin John Robert Lepre
E21 - EARTH DRILLING MINING
Information
Patent Grant
Automated pressure level detection and correction
Patent number
12,020,126
Issue date
Jun 25, 2024
International Business Machines Corporation
Deng Xin Luo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Rotary boring mining machine inertial steering system
Patent number
12,012,855
Issue date
Jun 18, 2024
The Mosaic Company
Roy W. Tivas
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rock bolt assembly comprising a sensor assembly
Patent number
12,012,856
Issue date
Jun 18, 2024
Sandvik Mining and Construction Tools AB
Osvaldo Vallati
E21 - EARTH DRILLING MINING
Information
Patent Grant
Low current self-illuminated power cable which retains flexibility,...
Patent number
12,000,579
Issue date
Jun 4, 2024
NEXANS
Nicolas Poulin
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Dendritic reverse underground mining method for thin coal seam at e...
Patent number
11,994,027
Issue date
May 28, 2024
China University of Mining and Technology
Shuzhao Chen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Multi-energy complementary system for co-associated abandoned mine...
Patent number
11,965,419
Issue date
Apr 23, 2024
ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Tong Zhang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for measuring gas pressure of close-distance seam group simu...
Patent number
11,959,379
Issue date
Apr 16, 2024
Anhui University of Science and Technology
Shaobo Li
E21 - EARTH DRILLING MINING
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
Method for filling deformable karst cave
Patent number
11,933,178
Issue date
Mar 19, 2024
Shandong University
Ke Wu
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Ventilation system
Patent number
11,933,177
Issue date
Mar 19, 2024
Toyota Jidosha Kabushiki Kaisha
Masayuki Ito
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Fabricated ocean tunnel structure with escape device and applicatio...
Patent number
11,933,176
Issue date
Mar 19, 2024
Shandong University
Ke Wu
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
Cable handling system for longwall mining machines
Patent number
11,927,097
Issue date
Mar 12, 2024
Caterpillar Inc.
Siddartha Saikia
E21 - EARTH DRILLING MINING
Information
Patent Grant
Latch assembly for a mine door and a mine door having such an assembly
Patent number
11,920,390
Issue date
Mar 5, 2024
Jack Kennedy Metal Products and Buildings, Inc.
William R. Kennedy
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Device and method for integrated control of acid wastewater pluggin...
Patent number
11,920,473
Issue date
Mar 5, 2024
Nanchang University
Daishe Wu
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Protecting trolley and construction method of rock burst prewarning...
Patent number
11,920,474
Issue date
Mar 5, 2024
CHINA RAILWAY 16TH BUREAU GROUP CO., LTD.
Dong Ma
E21 - EARTH DRILLING MINING
Information
Patent Grant
Integrated manufacturing system and method for small-deformation se...
Patent number
11,891,897
Issue date
Feb 6, 2024
CNBM Technology Innovation Academy (Shandong) Co., Ltd.
Zhongchun Hu
E21 - EARTH DRILLING MINING
Information
Patent Grant
System for controlling a plurality of autonomous vehicles on a mine...
Patent number
11,892,836
Issue date
Feb 6, 2024
LIEBHERR MINING EQUIPMENT NEWPORT NEWS CO.
James Whitfield
B60 - VEHICLES IN GENERAL
Information
Patent Grant
System and method of transient electromagnetic advanced detection
Patent number
11,879,327
Issue date
Jan 23, 2024
CHINA UNIVERSITY OF MINING AND AND TECHNOLOGY, BEIJING
Qiang Wu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Power optimization through orchestration and prioritization of mach...
Patent number
11,867,063
Issue date
Jan 9, 2024
Modular Mining Systems, Inc.
Michael W. Lewis
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Hazardous waste disposal using directional angled drilling
Patent number
11,834,951
Issue date
Dec 5, 2023
Leo Byford
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Plug for a void, system and method
Patent number
11,828,179
Issue date
Nov 28, 2023
Strata Products Worldwide, LLC
Joshua Stephen Behling
E21 - EARTH DRILLING MINING
Information
Patent Grant
Coal or rock dynamic disaster warning apparatus and method
Patent number
11,821,317
Issue date
Nov 21, 2023
Liaoning University
Yishan Pan
E21 - EARTH DRILLING MINING
Information
Patent Grant
Process for controlled in-situ coal gasification and a filling devi...
Patent number
11,814,941
Issue date
Nov 14, 2023
JAYANT CHANDULAL MEHTA
Jayant Chandulal Mehta
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for real-time strength estimation, grading, and early warnin...
Patent number
11,808,152
Issue date
Nov 7, 2023
SHIJIAZHUANG TIEDAO UNIVERSITY
Lijie Du
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Track structure with hollow center rail usable as ventilation duct
Patent number
11,807,279
Issue date
Nov 7, 2023
RIINO Inc.
Aaron Kevin Lambert
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for ecological filling with mixed coal gangue and fly ash
Patent number
11,795,106
Issue date
Oct 24, 2023
SHANXI UNIVERSITY
Fangqin Cheng
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Recovering conveyor systems and continuous miners from mined plunge...
Patent number
11,788,412
Issue date
Oct 17, 2023
Underground Extraction Technologies Pty Ltd
Michael Mapp
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
METHOD AND APPARATUS FOR FIRE VENTILATION AND SMOKE EVACUATION IN R...
Publication number
20240200453
Publication date
Jun 20, 2024
China Academy of Safety Science and Technology
Jian LI
G08 - SIGNALLING
Information
Patent Application
Leaching-Seepage Process of Sodium Sulfate in Thenardite Tailing Stack
Publication number
20240190714
Publication date
Jun 13, 2024
SC Hongya Qingyijiang Sodium Sulphate Co., Ltd.
Guangping CHEN
E21 - EARTH DRILLING MINING
Information
Patent Application
UNDERWATER ROBOT FOR MINE FLOODING RESCUE
Publication number
20240175361
Publication date
May 30, 2024
Anhui University of Science and Technology
Huawei JIN
E21 - EARTH DRILLING MINING
Information
Patent Application
ROADWAY CONDUIT SYSTEMS AND METHODS
Publication number
20240159149
Publication date
May 16, 2024
Electricwaze LLC
Ross Tessien
E21 - EARTH DRILLING MINING
Information
Patent Application
EVALUATION METHOD OF DUCTILITY OF GROUTED ROCK MASS FOR ADVANCED RE...
Publication number
20240159150
Publication date
May 16, 2024
China University of Mining and Technology
Wanghua SUI
E21 - EARTH DRILLING MINING
Information
Patent Application
POWER OPTIMIZATION THROUGH ORCHESTRATION AND PRIORITIZATION OF MACH...
Publication number
20240141787
Publication date
May 2, 2024
Modular Mining Systems, Inc.
Michael W. Lewis
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SYSTEMS AND METHODS FOR MEASURING MINE TUNNEL ENVIRONMENTAL INFORMA...
Publication number
20240141788
Publication date
May 2, 2024
CCTEG Shenyang Research Institute
Yong Sun
E21 - EARTH DRILLING MINING
Information
Patent Application
TEST METHOD FOR GAS AND TEMPERATURE DISTRIBUTION IN A GOAF
Publication number
20240142421
Publication date
May 2, 2024
CCTEG Shenyang Research Institute
Depeng Zhang
E21 - EARTH DRILLING MINING
Information
Patent Application
TEST DEVICE FOR GAS AND TEMPERATURE DISTRIBUTION IN A GOAF
Publication number
20240142420
Publication date
May 2, 2024
CCTEG Shenyang Research Institute
Yuntao Liang
G08 - SIGNALLING
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
SYSTEM AND METHOD FOR STABILIZING A MINE
Publication number
20240125235
Publication date
Apr 18, 2024
Drill Tech Drilling & Shoring, Inc.
Patrick Hugh Carr
E21 - EARTH DRILLING MINING
Information
Patent Application
MULTI-FACTOR QUANTITATIVE ANALYSIS METHOD FOR DEFORMATION OF NEIGHB...
Publication number
20240110479
Publication date
Apr 4, 2024
QINGDAO UNIVERSITY OF TECHNOLOGY
Yongjun ZHANG
E21 - EARTH DRILLING MINING
Information
Patent Application
UNDERGROUND MINING METHODS VIA BOREHOLES AND MULTILATERAL BLAST-HOLES
Publication number
20240110478
Publication date
Apr 4, 2024
Daniel B. Palmer
E21 - EARTH DRILLING MINING
Information
Patent Application
TRACK STRUCTURE WITH CENTER RAIL
Publication number
20240101162
Publication date
Mar 28, 2024
RIINO Inc.
Aaron Kevin Lambert
B61 - RAILWAYS
Information
Patent Application
ISOLATED OVERBURDEN GROUTING FILLING METHOD FOR COAL GANGUE UNDERGR...
Publication number
20240102343
Publication date
Mar 28, 2024
CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Dayang XUAN
E21 - EARTH DRILLING MINING
Information
Patent Application
Plug for a Void, System and Method
Publication number
20240093607
Publication date
Mar 21, 2024
STRATA PRODUCTS WORLDWIDE, LLC
Joshua Stephen Behling
E21 - EARTH DRILLING MINING
Information
Patent Application
TUNNEL AUTOMATIC MONITORING AND MEASUREMENT EQUIPMENT AND METHOD BA...
Publication number
20240093608
Publication date
Mar 21, 2024
Guizhou Transportation Planning Survey & Design Academe Co.LTD
Qiang HU
E21 - EARTH DRILLING MINING
Information
Patent Application
TUNNEL OPERATION ROBOT
Publication number
20240092438
Publication date
Mar 21, 2024
China Railway Design Corporation (CRDC)
Hu CAO
E21 - EARTH DRILLING MINING
Information
Patent Application
Method for Water and Moisture Management for a Mining Operation
Publication number
20240084702
Publication date
Mar 14, 2024
Aquatic Life Ltd.
Jeffrey M.R. Simpson
E21 - EARTH DRILLING MINING
Information
Patent Application
APPARATUS AND ITS OPERATION METHOD OF SALT CAVERN GAS STORAGE WITHO...
Publication number
20240083677
Publication date
Mar 14, 2024
Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
Xilin SHI
E21 - EARTH DRILLING MINING
Information
Patent Application
UNDERGROUND WORKSITE MODEL GENERATION
Publication number
20240077329
Publication date
Mar 7, 2024
SANDVIK MINING AND CONSTRUCTION OY
Jussi PUURA
E21 - EARTH DRILLING MINING
Information
Patent Application
UNDERGROUND MINE ENERGY MANAGEMENT SYSTEM
Publication number
20240067038
Publication date
Feb 29, 2024
Caterpillar Underground Mining Ply. Ltd.
Alexander Eli DOWLING
B60 - VEHICLES IN GENERAL
Information
Patent Application
FLUIDIZED COAL MINING METHOD FOR IMPLEMENTING CO2 UNDERGROUND STORAGE
Publication number
20240035382
Publication date
Feb 1, 2024
CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING
Yang JU
E21 - EARTH DRILLING MINING
Information
Patent Application
Hydraulic Support with Quick Response Function for Coal Wall Spalling
Publication number
20240026788
Publication date
Jan 25, 2024
Shandong University of Science and Technology
Lirong Wan
E21 - EARTH DRILLING MINING
Information
Patent Application
MINE VEHICLE AUTONOMOUS DRIVE CONTROL
Publication number
20240012428
Publication date
Jan 11, 2024
SANDVIK MINING AND CONSTRUCTION OY
Antti LEHTINEN
G05 - CONTROLLING REGULATING
Information
Patent Application
VERTICAL ORTHOGONAL TOP EXHAUSTING AIR DUCT STRUCTURE OF DEEPLY-BUR...
Publication number
20240003254
Publication date
Jan 4, 2024
Beijing Urban Construction Design&Development Group Co., Limited
Fucai HUA
E21 - EARTH DRILLING MINING
Information
Patent Application
AUTOMATIC DETACHING OF A MINING PANTOGRAPH
Publication number
20240001769
Publication date
Jan 4, 2024
SANDVIK MINING AND CONSTRUCTION OY
Ville VARE
B60 - VEHICLES IN GENERAL
Information
Patent Application
CONTINUOUS MINING AND DELAYED FILLING MINING METHOD FOR DEEP ORE BO...
Publication number
20240003252
Publication date
Jan 4, 2024
Shandong Gold Mining Co., Ltd.
Mingde Zhu
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD AND APPARATUS FOR USE IN STOPE BACKFILL MINING
Publication number
20230417142
Publication date
Dec 28, 2023
M2P ENGINEERING PTY LTD
Adam BESWICK
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR FILLING DEFORMABLE KARST CAVE
Publication number
20230407746
Publication date
Dec 21, 2023
SHANDONG UNIVERSITY
Ke WU
E21 - EARTH DRILLING MINING