ClassID:

136011

E21D9/1073 - CPC Classification

Classification description:

Tunnels or galleries, with or without linings; Methods or apparatus for making thereof ; Layout of tunnels or galleries; Making by using boring or cutting machines applying thermal energy, e.g. by projecting flames or hot gases, by laser beams

Recent Application in this class:
#1
20260071543
2026-03-12

MICROWAVE-BASED MINING SYSTEMS AND METHODS WITH ROBOTIC ARM WAVEGUIDE

#2
20250376926
2025-12-11

Hybrid Tunnel Boring Using Combination of Thermal and Mechanical Processes

#3
20250327403
2025-10-23

MICROWAVE ENERGY APPLICATOR

#4
20250067176
2025-02-27

Systems And Methods For Non-Contact Boring

#5
20240076983
2024-03-07

Tunnel Extraction Machine (TEM)

#6
20230321749
2023-10-12

HIGH POWER LASER TUNNELING MINING AND CONSTRUCTION EQUIPMENT AND METHODS OF USE

#7
20230304401
2023-09-28

Systems and methods for non-contact boring

#8
20230203948
2023-06-29

Plasma Drilling System

#9
20230194386
2023-06-22

TBM TUNNELING TEST BENCH FOR MICROWAVE-ASSISTED ROTARY ROCK BREAKING

#10
20230145203
2023-05-11

Microwave plasma adaptive rock breaking device for micro wave-insensitive rocks and method for using the same

#11
20230080875
2023-03-16

Hard rock tunnel boring machine combining microwave heating with high pressure water cutting for assisting in rock breaking

#12
20230040350
2023-02-09

Systems and methods for non-contact boring

#13
20220268156
2022-08-25

Microwave-based mining systems and methods with robotic arm waveguide

#14
20220268155
2022-08-25

Microwave energy applicator

#15
20220220851
2022-07-14

Tunnel boring system

#16
20220082017
2022-03-17

Method for boring with plasma

#17
20220056800
2022-02-24

Systems and methods for non-contact boring

#18
20220018252
2022-01-20

Laser and mechanical boring

#19
20210404261
2021-12-30

Tunneling for underground power and pipelines

#20
20210317739
2021-10-14

Mining machine applicable to fluidized mining of ore bodies and mining method

#21
20200217199
2020-07-09

Tunneling for underground power and pipelines

#22
20190240770
2019-08-08

High power laser tunneling mining and construction equipment and methods of use

#23
20190085688
2019-03-21

Tunneling for underground power and pipelines

#24
20190040741
2019-02-07

Cutter head for microwave presplitting type hard-rock tunnel boring machine

#25
20190017380
2019-01-17

Laser-assisted tunnel boring machine and rock fragmenting method therefor

#26
20150042145
2015-02-12

Method and apparatus for introducing or sinking cavities in rock

#27
20140327292
2014-11-06

Tunnel excavation device

#28
20140231398
2014-08-21

High power laser tunneling mining and construction equipment and methods of use