ClassID:

135382

E21B21/015 - CPC Classification

Classification description:

Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor; Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes Means engaging the bore entrance, e.g. hoods for collecting dust

Recent Application in this class:
#1
20260098449
2026-04-09

SAMPLING PIPE OF A SAMPLING ARRANGEMENT

#2
20250257619
2025-08-14

LIFTING ASSEMBLY FOR DUST CURTAIN OF WORK MACHINE

#3
20240401417
2024-12-05

APPARATUS AND METHOD FOR SUPPORTING A COLLAR REGION OF A BLAST HOLE DURING DRILLING

#4
20240003207
2024-01-04

Inlet tube, rock drilling rig and method of sampling

#5
20240003206
2024-01-04

Homogenizer, rock drilling rig and method of sampling

#6
20230250696
2023-08-10

Drilling device, and drilling construction method for an electric power iron tower foundation

#7
20220307978
2022-09-29

Systems, methods, and apparatuses for real-time characterization of rock cuttings during rock drill cutting

#8
20220259925
2022-08-18

DIRECTIONAL BORING SYSTEMS AND METHODS

#9
20220176508
2022-06-09

Device for Extracting Drilling Sludge and the Use Thereof

#10
20220025721
2022-01-27

High pressure injection flushing heads and systems including such flushing heads

#11
20210317710
2021-10-14

FLOW LINE INSTALLATION DEVICE FOR DRILLING RIGS

#12
20200230766
2020-07-23

DUST SUPPRESSION ASSEMBLY

#13
20200217155
2020-07-09

Workover /drilling rig with floor drainage system

#14
20200199954
2020-06-25

Mine drill, dust suction hood and dust removal device thereof

#15
20190390519
2019-12-26

Rotary drilling tool and method for producing a bore in the ground

#16
20190234161
2019-08-01

DRILL ROD FOR BREAKING UP THE EDGES OF BOREHOLES AND A METHOD FOR BREAKING UP THE EDGES OF BOREHOLES

#17
20190226338
2019-07-25

Drilling apparatus and method for collecting research sample

#18
20180326549
2018-11-15

Dust suppression assembly

#19
20170226808
2017-08-10

Dust suppression method and system for an autonomous drilling machine

#20
20170022787
2017-01-26

Adjustable containment envelope

#21
20170009530
2017-01-12

Drilling device and automatic throttle control program

#22
20160340990
2016-11-24

Collector circuit for drilling fluid circulation system and method for diverting the circulation of the fluid

#23
20160305213
2016-10-20

Drill tool insert removal

#24
20160215591
2016-07-28

Compact bail supported fill up and circulation tool

#25
20160069162
2016-03-10

Detection and collection system for fugitive gases and effluent liquids leaking from around drilled wellheads

#26
20160047241
2016-02-18

Automatic dust suppression system and method

#27
20150285014
2015-10-08

Device relating to a flushing head for a rock drilling machine and rock drilling machine

#28
20150176350
2015-06-25

Pneumatic mud bucket

#29
20150176345
2015-06-25

Drilling tool support and method of collaring

#30
20150139741
2015-05-21

Roof bolt installation tool

#31
20150034392
2015-02-05

Dust collection system for a machine

#32
20150000986
2015-01-01

Device for improved clean up of holes

#33
20150000981
2015-01-01

Device for improved clean up of holes, and method of using same

#34
20140238751
2014-08-28

AUXILIARY EQUIPMENT FOR USE WITH DRILLING APPARATUS

#35
20140090853
2014-04-03

Subsea well containment systems and methods

#36
20130153302
2013-06-20

Apparatus to wipe a tubular member

#37
20130048385
2013-02-28

Dust Binding Device and Method

#38
20120211281
2012-08-23

Low headroom confined space geoexchange drilling system and method

#39
20120024607
2012-02-02

Dust collecting device for a roof tool

#40
20110315404
2011-12-29

Lubricating seal for use with a tubular

#41
20110198130
2011-08-18

Articulated pre-skimmer mount

#42
20110114390
2011-05-19

Sleeve arrangement

#43
20100320000
2010-12-23

Arrangement for processing dust

#44
20100303558
2010-12-02

Collecting device and a method for using same

#45
20100126112
2010-05-27

Method of anchoring fastening element

#46
20100059282
2010-03-11

Boring head with new protection hood

#47
20100032211
2010-02-11

Dust catcher and sampler for use with a mining drilling apparatus

#48
20090308660
2009-12-17

Auxiliary equipment for use with drilling apparatus

#49
20090266617
2009-10-29

Sleeve arrangement

#50
20090241772
2009-10-01

Particle Separator for Separating Drill Cuttings From an Air Flow and a Drill Rig as Well as a Method for Controlling a Particle Separator

#51
20090178853
2009-07-16

Mobile soil sampling device with vacuum collector

#52
20090114443
2009-05-07

Anchored riserless mud return systems

#53
20080156538
2008-07-03

Water treatment pad for core drill

#54
20060118338
2006-06-08

Drill base

#55
20060021796
2006-02-02

Device and method for collecting borehole samples

#56
18437319
2025-08-12

Lifting assembly for dust curtain of work machine

#57
17122131
2021-12-14

Systems, methods, and apparatuses for identifying groundwater during rock drill cutting

#58
15466375
2020-08-18

Soil collection attachment with automated gate

#59
14534929
2015-12-29

LCM recovery tank

#60
13722011
2016-04-19

Pump for use with mine drill and related methods

#61
13398803
2015-02-17

Well water recirculating system