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SHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS
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Industry
CPC
E21D
Parent Industries
E
FIXED CONSTRUCTIONS
E21
Mining
Current Industry
E21D
SHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS
Sub Industries
E21D1/00
Sinking shafts
E21D11/00
Lining tunnels, galleries or other underground cavities
E21D13/00
Large underground chambers Methods or apparatus for making them
E21D15/00
Props Chocks
E21D17/00
Caps for supporting mine roofs
E21D19/00
Provisional protective covers for working space
E21D20/00
Setting anchoring-bolts
E21D21/00
Anchoring-bolts for roof, floor in galleries or longwall working , or shaft-lining protection
E21D23/00
Mine roof supports for step- by- step movement
E21D3/00
Raising shafts
E21D5/00
Lining shafts Linings therefor
E21D7/00
Shaft equipment
E21D8/00
Shafts not provided for in groups E21D1/00 - E21D7/00
E21D9/00
Tunnels or galleries, with or without linings Methods or apparatus for making thereof Layout of tunnels or galleries
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Patents Grants
last 30 patents
Information
Patent Grant
Support for drilling and bolting tool
Patent number
12,366,163
Issue date
Jul 22, 2025
Joy Global Underground Mining LLC
Peter Hanna
E21 - EARTH DRILLING MINING
Information
Patent Grant
Determining residual tension in threaded fasteners
Patent number
12,366,493
Issue date
Jul 22, 2025
Predictant LLC
Armita Mohammadian
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and device for identifying full-section excavation parameter...
Patent number
12,366,679
Issue date
Jul 22, 2025
CHINA RAILWAY ELEVENTH BUREAU GROUP CO., LTD
Jun Gao
F42 - AMMUNITION BLASTING
Information
Patent Grant
Model test apparatus and method for shield tunnel post-wall groutin...
Patent number
12,360,284
Issue date
Jul 15, 2025
OCEAN UNIVERSITY OF CHINA
Fei Sha
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for backfilling and reconstructing carbon storage space in a...
Patent number
12,359,568
Issue date
Jul 15, 2025
Taiyuan University of Technology
Guorui Feng
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method and system for automatically collecting multiple information...
Patent number
12,361,577
Issue date
Jul 15, 2025
China Railway Economic and Planning Research Institute Co., Ltd.
Siming Tian
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Device and method for driving a tunnel
Patent number
12,359,566
Issue date
Jul 15, 2025
Herrenknecht Aktiengesellschaft
Gerhard Wehrmeyer
E21 - EARTH DRILLING MINING
Information
Patent Grant
Blast hole arrangement structure used for blasting for rheological...
Patent number
12,359,567
Issue date
Jul 15, 2025
CHINA RAILWAY 18 BUREAU GROUP CO. LTD.
Xin Zhang
F42 - AMMUNITION BLASTING
Information
Patent Grant
Hydraulic support with quick response function for coal wall spalling
Patent number
12,352,169
Issue date
Jul 8, 2025
Shandong University of Science and Technology
Lirong Wan
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tertiary cooperative compression yielding and energy-absorbing supp...
Patent number
12,352,168
Issue date
Jul 8, 2025
CHINA UNIVERSITY OF MINING & TECHNOLOGY-BEIJING
Jie Hu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of and system for in-situ creation of concrete arches
Patent number
12,352,167
Issue date
Jul 8, 2025
BluCor Contracting, Inc.
Gordon Antoine Bluth
E03 - WATER SUPPLY SEWERAGE
Information
Patent Grant
Tunnel boring machine for excavating semicircular-arched tunnels
Patent number
12,352,170
Issue date
Jul 8, 2025
Robbins Mining, Inc.
Bradley Dean Grothen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Load bearing components and safety deck of an integrated constructi...
Patent number
12,352,060
Issue date
Jul 8, 2025
Apache Industrial Services, Inc.
Kenneth M. Chevis
E04 - BUILDING
Information
Patent Grant
Large-scale underground shield docking model test platform and test...
Patent number
12,340,152
Issue date
Jun 24, 2025
CCCC TUNNEL ENGINEERING CO., LTD.
Zhanhu Yao
G01 - MEASURING TESTING
Information
Patent Grant
TBM tunneling test bench for microwave-assisted rotary rock breaking
Patent number
12,339,199
Issue date
Jun 24, 2025
STATE KEY LABORATORY OF SHIELD MACHINE AND BORING TECHNOLOGY
Gaoming Lu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Composite supporting structure combining fabric-form bag-behind-wal...
Patent number
12,331,642
Issue date
Jun 17, 2025
SHANDONG JIANZHU UNIVERSITY
Jun Wang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mine drill module including gripper with folding arms
Patent number
12,331,643
Issue date
Jun 17, 2025
J.H. Fletcher & Co.
Nathan U. Payne
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for resin injection, mining machine and method
Patent number
12,326,086
Issue date
Jun 10, 2025
Sandvik Mining and Construction Oy
Pasi Ruotsalainen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Gel stemming delivery system
Patent number
12,320,626
Issue date
Jun 3, 2025
PWS—Stemsafe JV Pty Ltd
Edward Baker
F42 - AMMUNITION BLASTING
Information
Patent Grant
Cable handling device for cable bolts
Patent number
12,312,957
Issue date
May 27, 2025
Sandvik Mining and Construction G.m.b.H.
Bruno Reumuller
E21 - EARTH DRILLING MINING
Information
Patent Grant
Feeding device for subway grille main reinforcement conveying
Patent number
12,304,741
Issue date
May 20, 2025
Tianjin University
Lianyong Xu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Half-cast mark identification and damaged flatness evaluation and c...
Patent number
12,307,641
Issue date
May 20, 2025
HUAQIAO UNIVERSITY
Jin Yu
F42 - AMMUNITION BLASTING
Information
Patent Grant
Two-part resin input nozzle
Patent number
12,291,969
Issue date
May 6, 2025
INNOVATIVE MINING PRODUCTS (PTY) LTD
Paolo Ettore Pastorino
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Grant
Fitting ring
Patent number
12,291,885
Issue date
May 6, 2025
Apache Industrial Services, Inc.
Kenneth M. Chevis
E21 - EARTH DRILLING MINING
Information
Patent Grant
Excavation boring and shoring tool
Patent number
12,291,924
Issue date
May 6, 2025
Ted R. Dimitroff
E21 - EARTH DRILLING MINING
Information
Patent Grant
Bolter
Patent number
12,291,968
Issue date
May 6, 2025
Joy Global Underground Mining LLC
Willem Fourie
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and composition for limiting permeability of a matrix to lim...
Patent number
12,288,626
Issue date
Apr 29, 2025
Relborn Party Ltd
Deon Van Dyk
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Rotary digging drill and amphibious tunnel construction robot using...
Patent number
12,286,884
Issue date
Apr 29, 2025
WUHAN CONSTRUCTION ENGINEERING GROUP CO., LTD.
Shuai Wang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Sealing profile for concrete tubbing
Patent number
12,281,574
Issue date
Apr 22, 2025
Sealable Solutions GmbH
David Robes
E04 - BUILDING
Information
Patent Grant
Three-level prevention and control method for rock burst roadway
Patent number
12,276,196
Issue date
Apr 15, 2025
CCTEG COAL MINING RESEARCH INSTITUTE
Yongzheng Wu
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
METHODS FOR REAL-TIME DEVIATION MONITORING OF MINIATURE PIPE ROOFIN...
Publication number
20250231026
Publication date
Jul 17, 2025
TIANJIN PORT ENGINEERING INSTITUTE CO., LTD. OF CCCC FIRST HARBOR ENGINEERING...
Yifei ZHAO
E21 - EARTH DRILLING MINING
Information
Patent Application
TRAVELLING FORMWORK FOR CONCRETE FORMING OF A TUNNEL
Publication number
20250198285
Publication date
Jun 19, 2025
GRUPO EMPRESARIAL TECOZAM SL
Rubén GÓMEZ ROJO
E21 - EARTH DRILLING MINING
Information
Patent Application
Dynamic Rockbolt
Publication number
20250198288
Publication date
Jun 19, 2025
FCI HOLDINGS DELAWARE, INC.
Anthony Dodds
E21 - EARTH DRILLING MINING
Information
Patent Application
DEVICE FOR SINKING A VERTICAL BOREHOLE
Publication number
20250198284
Publication date
Jun 19, 2025
Patrick RENNKAMP
E21 - EARTH DRILLING MINING
Information
Patent Application
MINE ROOF SUPPORT CRIBS
Publication number
20250198287
Publication date
Jun 19, 2025
Mine Timber Technology (Int) Pty Ltd
Adam Gleeson
E21 - EARTH DRILLING MINING
Information
Patent Application
MONITORING SYSTEM FOR MONITORING A STRENGTH DEVELOPMENT OF SPRAYED...
Publication number
20250198979
Publication date
Jun 19, 2025
Normet Oy
Samu KUKKONEN
G08 - SIGNALLING
Information
Patent Application
COMPOSITE SUPPORT STRUCTURE COMBINING BAG-BASED BACKFILL GROUTING A...
Publication number
20250198286
Publication date
Jun 19, 2025
Shandong Jianzhu University
Jun WANG
E21 - EARTH DRILLING MINING
Information
Patent Application
LARGE-SCALE UNDERGROUND SHIELD DOCKING MODEL TEST PLATFORM AND TEST...
Publication number
20250200237
Publication date
Jun 19, 2025
CCCC TUNNEL ENGINEERING CO., LTD.
Zhanhu YAO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SPRAY-APPLIED POLYURETHANE INSULATION MATERIAL FOR TUNNELS IN COLD...
Publication number
20250171646
Publication date
May 29, 2025
CHINA ACADEMY OF RAILWAY SCIENCES CORPORATION LIMITED
Xiaoxiong Guo
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
TUNNEL EXCAVATION APPARATUS TO WHICH SPECTROSCOPIC ANALYSIS METHOD...
Publication number
20250163805
Publication date
May 22, 2025
KOREA RADIOACTIVE WASTE AGENCY
Seung Hyun KIM
G01 - MEASURING TESTING
Information
Patent Application
Roof Support Unit for a Mining Machine
Publication number
20250163807
Publication date
May 22, 2025
Caterpillar Inc.
Randal SCHUMACHER
E21 - EARTH DRILLING MINING
Information
Patent Application
WORK CARRIAGE FOR THE LINING OF TUNNELS
Publication number
20250163806
Publication date
May 22, 2025
HINFRA S.R. L.
Stefano GUANZIROLI
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR RECOVERING RESIDUAL COAL PILLARS BY FREEZING WATER ACCUM...
Publication number
20250163804
Publication date
May 22, 2025
Taiyuan University of Technology
Jun GUO
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR CALCULATING DIAMETER OF ANNULAR NON-FULL FORMWORK SUPPOR...
Publication number
20250155240
Publication date
May 15, 2025
China RAILWAY No. 8 Engineering Group Co., Ltd.
Jian Hu
G01 - MEASURING TESTING
Information
Patent Application
RECESS FILLING MATERIAL KIT, CURED PRODUCT THEREOF, AND RECESS FILL...
Publication number
20250154361
Publication date
May 15, 2025
Resonac Corporation
Yoichiro SAKAGUCHI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
SELF-STABILIZING INTEGRALLY-MOLDED PILLAR FILLING STRUCTURE FOR UND...
Publication number
20250146414
Publication date
May 8, 2025
China University of Mining and Technology
Shuai YAN
E21 - EARTH DRILLING MINING
Information
Patent Application
MOVABLE VISUAL INSPECTION DEVICE FOR SHIELD MACHINES
Publication number
20250146954
Publication date
May 8, 2025
China Railway Sunward Engineering Equipment Co., Ltd.
Dinghua Wang
B60 - VEHICLES IN GENERAL
Information
Patent Application
PREFABRICATED TUNNEL PRESTRESSED ANCHOR AND MANUFACTURING METHOD AN...
Publication number
20250146415
Publication date
May 8, 2025
CCCC SECOND HIGHWAY CONSULTANTS CO., LTD.
Wenbo PENG
E21 - EARTH DRILLING MINING
Information
Patent Application
ASYMMETRIC HYDRAULIC SUPPORTS FOR PSEUDO INCLINED MINING IN STEEPLY...
Publication number
20250116192
Publication date
Apr 10, 2025
Xi'an University of Science and Technology
Yongping WU
E21 - EARTH DRILLING MINING
Information
Patent Application
ROTARY DIGGING DRILL AND AMPHIBIOUS TUNNEL CONSTRUCTION ROBOT USING...
Publication number
20250109689
Publication date
Apr 3, 2025
WUHAN CONSTRUCTION ENGINEERING GROUP CO., LTD.
Shuai WANG
E21 - EARTH DRILLING MINING
Information
Patent Application
VISUALIZATION GROUTING DEVICE FOR COAL AND ROCK FISSURES AND TEST M...
Publication number
20250101868
Publication date
Mar 27, 2025
Henan Polytechnic University
Dengke Wang
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD AND DEVICE FOR IDENTIFYING FULL-SECTION EXCAVATION PARAMETER...
Publication number
20250102701
Publication date
Mar 27, 2025
China Railway Eleventh Bureau Group Co., Ltd
Jun GAO
F42 - AMMUNITION BLASTING
Information
Patent Application
SUPPORT PROP
Publication number
20250101869
Publication date
Mar 27, 2025
MSP MINE SUPPORT PRODUCTS (PTY) LTD
CHRISTIAN ENGELSTOFT NISSEN
E21 - EARTH DRILLING MINING
Information
Patent Application
GROOVE-TYPE SKELETON, SEALED LINING STRUCTURE, UNDERGROUND GAS STOR...
Publication number
20250092786
Publication date
Mar 20, 2025
Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
Guanhua SUN
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD AND SYSTEM FOR AUTOMATICALLY COLLECTING MULTIPLE INFORMATION...
Publication number
20250095177
Publication date
Mar 20, 2025
China Railway Economic and Planning Research Institute Co., Ltd.
Siming TIAN
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
ROCK BOLT
Publication number
20250092787
Publication date
Mar 20, 2025
MSP MINE SUPPORT PRODUCTS (PTY) LTD
CHRISTIAN ENGELSTOFT NISSEN
E21 - EARTH DRILLING MINING
Information
Patent Application
SHOTCRETE GAUGE
Publication number
20250093141
Publication date
Mar 20, 2025
JDL Industries Inc.
John-David DANDENO
E21 - EARTH DRILLING MINING
Information
Patent Application
CONTROL APPARATUS AND METHOD FOR BUOYANCY ADJUSTMENT OF SHIELD TUNN...
Publication number
20250067177
Publication date
Feb 27, 2025
Shenzhen Campus of Sun Yat-sen University
LINCHONG HUANG
E21 - EARTH DRILLING MINING
Information
Patent Application
Systems And Methods For Non-Contact Boring
Publication number
20250067176
Publication date
Feb 27, 2025
Phoenix Boring, Inc.
Ian Wright
E21 - EARTH DRILLING MINING
Information
Patent Application
BULK RESIN INJECTION SYSTEM
Publication number
20250067178
Publication date
Feb 27, 2025
Joy Global Underground Mining LLC
Callum K. Tyler
E21 - EARTH DRILLING MINING