ClassID:

135241

E21B10/485 - CPC Classification

Classification description:

Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type with inserts in form of chisels, blades or the like

Recent Application in this class:
#1
20250109025
2025-04-03

Polycrystalline Diamond Compact Table with Polycrystalline Diamond Extensions Therefrom

#2
20250051170
2025-02-13

Polycrystalline Diamond Compact Table with Polycrystalline Diamond Extensions Therefrom

#3
20230416098
2023-12-28

Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom

#4
20230406711
2023-12-21

Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom

#5
20210009426
2021-01-14

Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom

#6
20190390519
2019-12-26

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

#7
20190284878
2019-09-19

Mining bit and method of manufacturing the bit

#8
20190063163
2019-02-28

CUTTING ELEMENT ASSEMBLIES COMPRISING ROTATABLE CUTTING ELEMENTS INSERTABLE FROM THE BACK OF A BLADE

#9
20190063159
2019-02-28

Earth boring tools having fixed blades and rotatable cutting structures and related methods

#10
20180371844
2018-12-27

Direct casting of ultrahard insert in bit body

#11
20180363384
2018-12-20

Mechanical locking of cutting element with carbide matrix

#12
20180363382
2018-12-20

Mechanical locking of ovoid cutting element with carbide matrix

#13
20180094343
2018-04-05

Component comprising hard metal composition including fused tungsten carbide

#14
20180016849
2018-01-18

Rotary claw drill bit

#15
20170328180
2017-11-16

Core bit designed to control and reduce the cutting forces acting on a core of rock

#16
20150007505
2015-01-08

Method of making diamond mining core drill bit and reamer

#17
20140196957
2014-07-17

Tooth for roller crusher

#18
20130020134
2013-01-24

Fixed cutter drill bit with core fragmentation feature

#19
20110198128
2011-08-18

Earth-boring tools including abrasive cutting structures and related methods

#20
20100187011
2010-07-29

Cutting structures for casing component drillout and earth-boring drill bits including same

#21
20100133013
2010-06-03

Bit for drilling wells and associated drilling method

#22
20090084608
2009-04-02

Cutting structures for casing component drillout and earth-boring drill bits including same

#23
20050139396
2005-06-30

Fixing arrangement

#24
20050084349
2005-04-21

Drilling tool