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E21D9/106
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Parent Industries
E
FIXED CONSTRUCTIONS
E21
Mining
E21D
SHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS
E21D9/00
Tunnels or galleries, with or without linings Methods or apparatus for making thereof Layout of tunnels or galleries
Current Industry
E21D9/106
with percussive tools
Industries
Overview
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Roadway/tunnel excavation robot and automatic cutting control method
Patent number
12,091,977
Issue date
Sep 17, 2024
China University of Mining and Technology
Hongxiang Jiang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hard rock tunnel boring machine combining microwave heating with hi...
Patent number
12,031,437
Issue date
Jul 9, 2024
STATE KEY LABORATORY OF SHIELD MACHINE AND BORING TECHNOLOGY
Gaoming Lu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tunnel boring system
Patent number
11,591,909
Issue date
Feb 28, 2023
EarthGrid PBC
Troy Anthony Helming
E21 - EARTH DRILLING MINING
Information
Patent Grant
Combined rock-breaking TBM tunneling method in complex strata for r...
Patent number
11,486,249
Issue date
Nov 1, 2022
INSTITUTE OF ROCK AND SOIL MECHANICS, CAS
Hui Zhou
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for the bottom-up construction of vertical ris...
Patent number
11,441,423
Issue date
Sep 13, 2022
WEBUILD S.P.A.
Nicola Valiante
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hard rock roadway and tunnel boring machine with actively rotating...
Patent number
11,199,092
Issue date
Dec 14, 2021
China University of Mining and Technology
Hongxiang Jiang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tunnel boring system
Patent number
11,136,886
Issue date
Oct 5, 2021
EarthGrid PBC
Troy Anthony Helming
E21 - EARTH DRILLING MINING
Information
Patent Grant
Vibrating type hard rock cutting mechanism with function of directi...
Patent number
10,895,153
Issue date
Jan 19, 2021
China University of Mining and Technology
Hongxiang Jiang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Enhanced endcap ram accelerator system
Patent number
10,822,877
Issue date
Nov 3, 2020
Hypersciences, Inc.
Mark C. Russell
F41 - WEAPONS
Information
Patent Grant
Laser-assisted tunnel boring machine and rock fragmenting method th...
Patent number
10,648,334
Issue date
May 12, 2020
Dalian University of Technology
Zhengzheng Wang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling and bursting heading machine
Patent number
10,233,755
Issue date
Mar 19, 2019
China University of Mining and Technology
Songyong Liu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Device for back soil disturbance in shield tunnel
Patent number
10,156,139
Issue date
Dec 18, 2018
POWERCHINA HUADONG ENGINEERING CORPORATION LIMITED
Wenhua Chen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Compound-type tunneling shield
Patent number
10,077,657
Issue date
Sep 18, 2018
Yulian He
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tunnel excavation device
Patent number
9,291,054
Issue date
Mar 22, 2016
Korea Railroad Research Institute
Dong Hyeon Kim
E21 - EARTH DRILLING MINING
Information
Patent Grant
Excavation system using a water jet, and excavation method using th...
Patent number
9,140,122
Issue date
Sep 22, 2015
KAIST (Korea Advanced Institute of Science and Technology)
Gye-Chun Cho
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tool for breaking hammer, breaking hammer, and use thereof
Patent number
9,095,968
Issue date
Aug 4, 2015
Sandvik Mining and Construction Oy
Ossi Kahra
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Shield tunneling machine
Patent number
7,073,869
Issue date
Jul 11, 2006
Nakakuro Construction Co., Ltd.
Kenichi Nakakuro
E21 - EARTH DRILLING MINING
Information
Patent Grant
Jet excavating device
Patent number
6,385,868
Issue date
May 14, 2002
Heerema Holding Construction Inc.
Rogier Cristian Koene
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cutting heads for horizontal remote mining system
Patent number
6,364,418
Issue date
Apr 2, 2002
Amvest Systems, Inc.
Jeff Schwoebel
E21 - EARTH DRILLING MINING
Information
Patent Grant
Excavation machine for hard rock mining
Patent number
6,357,831
Issue date
Mar 19, 2002
Hans Dieter Stoebe
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tunnel excavator with variable pressure water jets
Patent number
6,332,652
Issue date
Dec 25, 2001
Nakakuro Construction Co., Ltd.
Kenichi Nakakuro
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hydraulic scroll auger mining system and method of using the same
Patent number
6,293,628
Issue date
Sep 25, 2001
Amvest Systems Inc.
Jeffrey J. Schwoebel
E21 - EARTH DRILLING MINING
Information
Patent Grant
Horizontal remote mining system, and method
Patent number
5,879,057
Issue date
Mar 9, 1999
Amvest Corporation
Jeffrey J. Schwoebel
E21 - EARTH DRILLING MINING
Information
Patent Grant
Excavation machine having combined impact hammers and static ripper...
Patent number
5,333,937
Issue date
Aug 2, 1994
David J. Hopkins
E21 - EARTH DRILLING MINING
Information
Patent Grant
Narrow opening mechanical miner
Patent number
4,818,025
Issue date
Apr 4, 1989
Hecla Mining Company
Mandius C. Lundal
E21 - EARTH DRILLING MINING
Information
Patent Grant
Machine for driving workings in hard rocks
Patent number
4,796,956
Issue date
Jan 10, 1989
Spetsialnoe Konstruktorskoe Bjuro Gidroimpulsnoi Tekhniki
Petr Y. Fadeev
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tool bit for impact ripping of a mine face
Patent number
4,783,123
Issue date
Nov 8, 1988
Jack B. Ottestad
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for drilling hard material
Patent number
4,682,819
Issue date
Jul 28, 1987
Roger Masse
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tunnel excavation method
Patent number
4,673,218
Issue date
Jun 16, 1987
Okumura Corporation
Susumu Murakami
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Process and apparatus for cutting rock
Patent number
4,624,326
Issue date
Nov 25, 1986
Charles Loegel
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Patents Applications
last 30 patents
Information
Patent Application
ROADWAY/TUNNEL EXCAVATION ROBOT AND AUTOMATIC CUTTING CONTROL METHOD
Publication number
20240141784
Publication date
May 2, 2024
CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Hongxiang JIANG
E21 - EARTH DRILLING MINING
Information
Patent Application
Tunnel Extraction Machine (TEM)
Publication number
20240076983
Publication date
Mar 7, 2024
TopEng Inc.
Behzad Khorshidi
E21 - EARTH DRILLING MINING
Information
Patent Application
Plasma Drilling System
Publication number
20230203948
Publication date
Jun 29, 2023
EarthGrid PBC
Troy Anthony Helming
E21 - EARTH DRILLING MINING
Information
Patent Application
HARD ROCK TUNNEL BORING MACHINE COMBINING MICROWAVE HEATING WITH HI...
Publication number
20230080875
Publication date
Mar 16, 2023
STATE KEY LABORATORY OF SHIELD MACHINE AND BORING TECHNOLOGY
Gaoming LU
E21 - EARTH DRILLING MINING
Information
Patent Application
Tunnel Boring System
Publication number
20220220851
Publication date
Jul 14, 2022
EarthGrid PBC
Troy Anthony Helming
E21 - EARTH DRILLING MINING
Information
Patent Application
HARD ROCK ROADWAY AND TUNNEL BORING MACHINE WITH ACTIVELY ROTATING...
Publication number
20210231013
Publication date
Jul 29, 2021
CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Hongxiang JIANG
E21 - EARTH DRILLING MINING
Information
Patent Application
COMBINED ROCK-BREAKING TBM TUNNELING METHOD IN COMPLEX STRATA FOR R...
Publication number
20210003009
Publication date
Jan 7, 2021
Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
Hui ZHOU
E21 - EARTH DRILLING MINING
Information
Patent Application
VIBRATION REDUCTION OPTIMIZATION METHOD FOR HOST SYSTEM OF TUNNEL B...
Publication number
20200285787
Publication date
Sep 10, 2020
Dalian University of Technology
Junzhou HUO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
ENHANCED ENDCAP RAM ACCELERATOR SYSTEM
Publication number
20190195022
Publication date
Jun 27, 2019
HYPERSCIENCES, INC.
MARK C. RUSSELL
F41 - WEAPONS
Information
Patent Application
Drilling and Bursting Heading Machine
Publication number
20180195388
Publication date
Jul 12, 2018
Songyong Liu
E21 - EARTH DRILLING MINING
Information
Patent Application
HYDRO EXCAVATION HEATING SYSTEM AND RELATED METHODS
Publication number
20180010453
Publication date
Jan 11, 2018
VAC-TRON EQUIPMENT, LLC
Don M. BUCKNER
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
DEVICE FOR BACK SOIL DISTURBANCE IN SHIELD TUNNEL
Publication number
20170335687
Publication date
Nov 23, 2017
POWERCHINA HUADONG ENGINEERING CORPORATION LIMITED
Wenhua CHEN
E21 - EARTH DRILLING MINING
Information
Patent Application
Compound-Type Tunnelling Shield
Publication number
20160194957
Publication date
Jul 7, 2016
CHINA RAIL WAY ENGINEERING EQUIPMENT GROUP CO., LTD.
Yulian HE
E21 - EARTH DRILLING MINING
Information
Patent Application
ROLLING FRICTION OR SUSPENSION FRICTION IMPACT MINING METHOD AND WE...
Publication number
20150130256
Publication date
May 14, 2015
Suhua Liu
E21 - EARTH DRILLING MINING
Information
Patent Application
Tool for breaking hammer, breaking hammer, and use thereof
Publication number
20140346840
Publication date
Nov 27, 2014
SANDVIK MINING AND CONSTRUCTION OY
Ossi Kahra
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
TUNNEL EXCAVATION DEVICE
Publication number
20140327292
Publication date
Nov 6, 2014
KOREA RAILROAD RESEARCH INSTITUTE
Dong Hyeon Kim
E21 - EARTH DRILLING MINING
Information
Patent Application
EXCAVATION SYSTEM USING A WATER JET, AND EXCAVATION METHOD USING TH...
Publication number
20130200680
Publication date
Aug 8, 2013
KAIST (Korea Advanced Institute of Science and Technology)
Gye-Chun Cho
E21 - EARTH DRILLING MINING
Information
Patent Application
Shield tunneling machine
Publication number
20050077775
Publication date
Apr 14, 2005
Kenichi Nakakuro
E21 - EARTH DRILLING MINING
Information
Patent Application
Jet excavating device
Publication number
20010035674
Publication date
Nov 1, 2001
HEEREMA HOLDING CONSTRUCTION INC.
Rogier Cristian Koene
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC