ClassID:

136029

E21D9/14 - CPC Classification

Classification description:

Tunnels or galleries, with or without linings; Methods or apparatus for making thereof ; Layout of tunnels or galleries Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings

Recent Application in this class:
#1
20240410280
2024-12-12

METHOD FOR SELECTING PARAMETERS FOR TUNNEL SUPPORT BASED ON ENGINEERING-ORIENTED BEHAVIOR DISCRIMINATION OF SURROUNDING ROCK

#2
20240360759
2024-10-31

ROADWAY CONDUIT SYSTEMS AND METHODS

#3
20240296536
2024-09-05

TUNNEL DYNAMIC BLASTING DEVICE BASED ON GEOLOGICAL BODY INTELLIGENT PERCEPTION, SYSTEM AND METHOD

#4
20240159149
2024-05-16

ROADWAY CONDUIT SYSTEMS AND METHODS

#5
20230392499
2023-12-07

Fabricated ocean tunnel structure with escape device and application method thereof

#6
20230278313
2023-09-07

BUILDING PRODUCTS AND ASSOCIATED METHODS FOR PROVIDING CONTOURED AND ELEVATED FEATURES FOR ARTIFICAL SURFACES

#7
20230063143
2023-03-02

Surrounding rock stability control method adapted for coal mining area main roadway

#8
20230037876
2023-02-09

Shield sealing device and shield sealing method

#9
20220349257
2022-11-03

Apparatus, rock drilling rig and method for mining navigation

#10
20220251953
2022-08-11

Method for coal mining without reserving coal pillar and tunneling roadway in whole mining area

#11
20220251952
2022-08-11

Underground longwall mining method

#12
20210310354
2021-10-07

Mining system

#13
20210237309
2021-08-05

Roadway conduit systems and methods

#14
20210215041
2021-07-15

Night vision tunnel

#15
20190263090
2019-08-29

Building Products and Associated Methods for Providing Contoured and Elevated Features for Artificial Surfaces

#16
20190249552
2019-08-15

Conduit segment casting mold and method of forming a conduit segment

#17
20190242255
2019-08-08

System and Method for Preventing an Explosion of a Caldera

#18
20190112925
2019-04-18

Tunnel wall element and a method of assembling tunnel walls comprising the tunnel wall elements

#19
20190071968
2019-03-07

Method for deformation control of large-span tunnel in chlorite schist stratum

#20
20180003056
2018-01-04

Construction layout for caverns of underground nuclear power plant

#21
20180003055
2018-01-04

Construction layout for caverns of underground nuclear power plant

#22
20180003054
2018-01-04

Construction layout for underground caverns in nuclear island powerhouse of underground nuclear power plant

#23
20170284801
2017-10-05

Tunnel convergence detection apparatus and method

#24
20170018115
2017-01-19

VISUALISATION OF WORK STATUS FOR A MINE WORKSITE

#25
20150310949
2015-10-29

WATER INTAKE INSTALLATION FOR COOLING A NUCLEAR POWER PLANT, AND NUCLEAR POWER PLANT COMPRISING SUCH AN INSTALLATION

#26
20150274424
2015-10-01

Subterranean Fluid Storage Configurations and Methods

#27
20150226248
2015-08-13

Torque Tension Breakaway Nut

#28
20150110561
2015-04-23

Structure for reducing tunnel micro pressure wave including air pipe

#29
20150078831
2015-03-19

Auxiliary tunneling apparatus

#30
20150069815
2015-03-12

Tunnel excavation method

#31
20150034254
2015-02-05

Removable barrier for protecting tunnels and other structures from flooding and other hazards

#32
20140314490
2014-10-23

Pumpable mine ventilation structure

#33
20110103893
2011-05-05

TUNNEL MULTI FLOOR

#34
20100098496
2010-04-22

TUNNEL MULTI GALLERY

#35
20100092243
2010-04-15

Underwater tunnel

#36
20090284983
2009-11-19

INTRINSICALLY-SAFE SYSTEM FOR MINESHAFT ILLUMINATION

#37
20080087422
2008-04-17

Method of collecting hydrocarbons using a barrier tunnel

#38
20060165489
2006-07-27

Structure of intermediate wall of three arch excavated tunnel and method for constructing the same

#39
18396680
2024-12-10

Method of buffer layer with critical deformation of tunnel initial support as control target

#40
17524992
2022-05-10

Similar simulation experimental device of hydraulic energy-absorbing roadway support

#41
14096340
2016-10-18

Mine seal