Patents-Review.com
ClassID:

135199 ⎘

E21B7/30 - CPC Classification

Classification description:

Special methods or apparatus for drilling; Enlarging drilled holes, e.g. by counterboring without earth removal

Recent Application in this class:
#1
20240287894
2024-08-29

Advanced Drill String Communication System, Components and Methods

 #2
20240159145
2024-05-16

TUNNELING AND NAVIGATION SYSTEMS INCLUDING CONTROLLER CONFIGURED TO DETERMINE ENVIRONMENTAL CHARACTERISTIC

 #3
20230100802
2023-03-30

Portable winch

 #4
20230065813
2023-03-02

Method and device for holding and releasing a cable in a pipe splitter

 #5
20230053758
2023-02-23

Double acting rotary and hammering tool

 #6
20220263306
2022-08-18

SYSTEM AND METHOD FOR NEW CABLE PROVISIONING UTILIZING BURIED CABLE

 #7
20220127956
2022-04-28

Advanced drill string communication system, components and methods

 #8
20210293092
2021-09-23

Tool and method for forming a cavern for hydrocarbon production

 #9
20210254776
2021-08-19

Method and device for holding and releasing a cable in a pipe splitter

 #10
20210172256
2021-06-10

Production cavern

 #11
20210078841
2021-03-18

Portable winch

 #12
20200116014
2020-04-16

Advanced drill string communication system and method

 #13
20200040667
2020-02-06

Drill string adapter and method for inground signal coupling

 #14
20200036177
2020-01-30

System and method for new cable provisioning utilizing buried cable

 #15
20190368275
2019-12-05

Internal reamer for anchor shaft hole for mining

 #16
20190353294
2019-11-21

Method and device for holding and releasing a cable in a pipe splitter

 #17
20190276283
2019-09-12

Portable winch

 #18
20190113169
2019-04-18

Pipe replacement tool and method

 #19
20180283105
2018-10-04

Method and system for a hole opener

 #20
20180223608
2018-08-09

Slip style rod spinner for pipe bursting machine

 #21
20180073311
2018-03-15

Slip Style Rod Spinner For Pipe Bursting Machine

 #22
20180041017
2018-02-08

System and method for new cable provisioning utilizing buried cable

 #23
20170334688
2017-11-23

Portable winch

 #24
20170321838
2017-11-09

Method and device for holding and releasing a cable in a pipe splitter

 #25
20170260812
2017-09-14

Method and system for a hole opener

 #26
20170204681
2017-07-20

Drill string adapter and method for inground signal coupling

 #27
20160341349
2016-11-24

Method and device for holding and releasing a cable in a pipe splitter

 #28
20160138388
2016-05-19

Advanced drill string communication system, components and methods

 #29
20150369394
2015-12-24

Trenchless drainage structure replacement

 #30
20150252632
2015-09-10

Slip style rod spinner for pipe bursting machine

 #31
20150211304
2015-07-30

Method and system for a hole opener

 #32
20150083984
2015-03-26

Portable winch

 #33
20140305708
2014-10-16

Reamer with replaceable cutters

 #34
20140298622
2014-10-09

Method and device for holding and releasing a cable in a pipe splitter

 #35
20140205382
2014-07-24

Method and system for replacement of existing pipes

 #36
20140174825
2014-06-26

Drill string adapter and method for inground signal coupling

 #37
20130248254
2013-09-26

Underground reamer

 #38
20130199851
2013-08-08

Method for producing a horizontal bore in the ground and horizontal drilling device

 #39
20130176139
2013-07-11

Advanced drill string communication system, components and methods

 #40
20130082224
2013-04-04

Portable winch

 #41
20120217023
2012-08-30

Drill string adapter and method for inground signal coupling

 #42
20120093586
2012-04-19

Portable winch

 #43
20120087739
2012-04-12

Trenchless drainage structure replacement

 #44
20120039670
2012-02-16

Method and system for inserting a pipe into an underground borehole

 #45
20100282517
2010-11-11

Boring system

 #46
20100270522
2010-10-28

Portable winch

 #47
20100178113
2010-07-15

Method and device for holding and releasing a cable in a pipe splitter

 #48
20100175924
2010-07-15

Apparatus and method for improvements in wellbore drilling

 #49
20090220305
2009-09-03

Method and device for reconstructing old underground pipes

 #50
20080296066
2008-12-04

Bore hole sleeve reaming apparatus and method

 #51
20080202723
2008-08-28

Method and apparatus for installing a borehole heat exchanger in the earth

 #52
20080181728
2008-07-31

Pipe bursting and replacement apparatus and method

 #53
20080069644
2008-03-20

Portable winch

 #54
20080023226
2008-01-31

Bore hole reaming apparatus and method

 #55
20070284149
2007-12-13

Apparatus and method for joining a pipe conduit to a drilling device, expanding device or pull-in device

 #56
20070209840
2007-09-13

Method and apparatus for forming square holes for posts

 #57
20070209444
2007-09-13

Pipe Tension Measuring Device

 #58
20060269361
2006-11-30

Apparatus for on-grade boring

 #59
20060157276
2006-07-20

Pipe burster with spherical bursting member

 #60
20050244229
2005-11-03

Method and apparatus for replacement of underground pipe

 #61
20050161261
2005-07-28

Steerable soil penetration system

 #62
20050042036
2005-02-24

Device and method for trenchless replacement of underground pipe