ClassID:

136023

E21D9/12 - CPC Classification

Classification description:

Tunnels or galleries, with or without linings; Methods or apparatus for making thereof ; Layout of tunnels or galleries Devices for removing or hauling away excavated material or spoil; Working or loading platforms

Sub-classes:
Recent Application in this class:
#1
20260002445
2026-01-01

TUNNEL BORING MACHINE FOR EXCAVATING SEMICIRCULAR-ARCHED TUNNELS

#2
20240254879
2024-08-01

TUNNEL BORING MACHINE FOR EXCAVATING SEMICIRCULAR-ARCHED TUNNELS

#3
20240240560
2024-07-18

Tunnel Tunneling System

#4
20240076983
2024-03-07

Tunnel Extraction Machine (TEM)

#5
20220325625
2022-10-13

MINING APPARATUS AND METHODS

#6
20220275893
2022-09-01

CRS: quick connector for tunnel boring machine spoil check

#7
20210331207
2021-10-28

Active sorting muck-collecting device for slurry balancing shield

#8
20200370434
2020-11-26

Mobile underground tunnel borer arrangement

#9
20200208519
2020-07-02

Auxiliary transportation and support system used after rapid excavation

#10
20170306756
2017-10-26

Cutting apparatus

#11
20170298731
2017-10-19

Device for the installation of rock bolts and cutting apparatus

#12
20170298730
2017-10-19

Cutting apparatus

#13
20160208607
2016-07-21

Skip and crosshead

#14
20150233243
2015-08-20

Method and device for transporting overburden away during tunnelling

#15
20150232280
2015-08-20

Roof Mountable Support System

#16
20130263752
2013-10-10

Method and related devices for carrying out TBM excavation and expansion blasting using a blast protector and a cart

#17
20130193744
2013-08-01

Apparatus for forming an underground tunnel

#18
20120200139
2012-08-09

Underground mining

#19
20110198914
2011-08-18

Method and device for working rock

#20
20110103892
2011-05-05

MODIFICATIONS TO A TBM STRUCTURE TO PROVIDE ROOF SUPPORT INSTALLATION

#21
20100284748
2010-11-11

Underground mining apparatus

#22
20090326734
2009-12-31

Worksite avoidance system

#23
20090255783
2009-10-15

Arrangement for extracting extraction products in underground extraction operations in caving

#24
20060208555
2006-09-21

Method and device for extracting extraction products in underground mining

#25
17476399
2024-02-20

Tunnel digging machine (TDM)

#26
13547499
2014-06-03

Mining sled with movable bed