ClassID:

135156

E21B7/021 - CPC Classification

Classification description:

Special methods or apparatus for drilling; Drilling rigs characterized by means for land transport with their own drive , e.g. skid mounting or wheel mounting With a rotary table, i.e. a fixed rotary drive for a relatively advancing tool

Recent Application in this class:
#1
20260028879
2026-01-29

DRILLING ARRANGEMENT AND METHODOLOGY

#2
20220349268
2022-11-03

High-capacity mast on a drilling rig

#3
20220349258
2022-11-03

Drilling apparatus and related method

#4
20210277720
2021-09-09

Drilling apparatus and related method

#5
20200392798
2020-12-17

Hybrid carriage drive for an underground drilling machine

#6
20200386052
2020-12-10

Assembly for moving excavation or drilling equipment and actuating method therefor

#7
20200208475
2020-07-02

Vise arrangement for an underground drilling machine

#8
20200199941
2020-06-25

Rock drilling machine, rock drilling rig and measuring method

#9
20200109037
2020-04-09

Drilling machine for foundation piles comprising an electric energy recovery winch

#10
20190360283
2019-11-28

Rotary drill head for coiled tubing drilling apparatus

#11
20190169941
2019-06-06

Working machine and method for working the ground

#12
20190063168
2019-02-28

High-capacity mast on a drilling rig

#13
20190010770
2019-01-10

Vise arrangement for an underground drilling machine

#14
20180251948
2018-09-06

Modular assembly for handling excavating equipment for excavating machines, excavating machine, method for converting the excavating configuration of an excavating machine

#15
20170044851
2017-02-16

Chuck for a drill head of a rotation drilling rig

#16
20170044849
2017-02-16

Rod rotation apparatus

#17
20160348437
2016-12-01

Drilling machine with optimized tool unloading system

#18
20160305187
2016-10-20

Traveling Earth Boring/Driling Device

#19
20130318909
2013-12-05

Portable drilling rig apparatus and assembly method

#20
20130206480
2013-08-15

Human-powered borehole drill

#21
20110308863
2011-12-22

Bottom roller drive for deep soil mixing system

#22
20110290564
2011-12-01

KELLY FOR THE REALIZATION OF BORED PILES

#23
20110072737
2011-03-31

PORTABLE DRILLING RIG APPARATUS AND ASSEMBLY METHOD

#24
20050051364
2005-03-10

Feed table pivot pin constraining device