ClassID:

38661

B21D28/34 - CPC Classification

Classification description:

Shaping by press-cutting; Perforating; Perforating, i.e. punching holes Perforating tools; Die holders

Sub-classes:
Recent Application in this class:
#1
20260091425
2026-04-02

METHOD FOR TRIMMING AND PUNCHING THERMOFORMED PART, AND TRIMMING AND PUNCHING DIE

#2
20250387823
2025-12-25

DIFFUSION LAYER FOR AN ELECTROCHEMICAL CELL AND METHOD FOR PRODUCING A DIFFUSION LAYER

#3
20250281963
2025-09-11

PUNCHING DEVICE AND PUNCHING METHOD USING SAME

#4
20250235938
2025-07-24

CUTTING METHOD AND CUT ARTICLE

#5
20250178061
2025-06-05

DEVICE AND SYSTEM FOR LAYING AND INSERTING VARIABLE HOLES IN IRRIGATION TUBING

#6
20250128311
2025-04-24

BLANKING DEVICE AND METHOD OF MANUFACTURING ELECTRODE PLATE FOR SECONDARY BATTERY USING THE SAME

#7
20250128309
2025-04-24

PRESS DIE APPARATUS

#8
20250108427
2025-04-03

Pilotless Knockout Tool

#9
20240300001
2024-09-12

Dual Action Retention Mechanism

#10
20240278308
2024-08-22

APPARATUS FOR MANUFACTURING LAMINATED IRON CORE AND BACK-PRESSURE JIG

#11
20240238862
2024-07-18

BLANK, FORMED ARTICLE, DIE ASSEMBLY, AND METHOD FOR PRODUCING BLANK

#12
20240226985
2024-07-11

ORIENTATION ELEMENT FOR PUNCH RETAINER AND PUNCH FOR USE THEREWITH

#13
20240123485
2024-04-18

PROCESSING APPARATUS FOR ROUNDING EDGE OF LEAD TAB FOR SECONDARY BATTERY

#14
20240116097
2024-04-11

METHOD FOR MANUFACTURING OUT PLATE FOR REFRIGERATOR

#15
20240109117
2024-04-04

METHOD AND DEVICE FOR PERFORATING A PIPE WALL

#16
20240033804
2024-02-01

SHEARING METHOD, SHEARING DEVICE, AND SHEARING FACILITY

#17
20240009726
2024-01-11

Punching/perforating machine

#18
20230364665
2023-11-16

Tapered transition pilot

#19
20230339008
2023-10-26

METAL SHEET PUNCHING DEVICE

#20
20230294155
2023-09-21

Fastener enabled multi-plate securement and alignment arrangement

#21
20230278297
2023-09-07

Stringer forming apparatus and method

#22
20230278090
2023-09-07

PROCESSING TOOL

#23
20230201905
2023-06-29

Punching Tool for Mobile Use

#24
20230182195
2023-06-15

SHEET HOLDER FOR PERFORATION PRESS AND METHOD FOR MOVING SHEET HOLDER

#25
20230147754
2023-05-11

METALWORKING APPARATUS AND METALWORKING METHOD

#26
20230079039
2023-03-16

Press working method

#27
20230041897
2023-02-09

Tapered transition pilot

#28
20220410243
2022-12-29

APPARATUS FOR PRODUCING HOLLOW PANELS AND METHOD OF OPERATING SAME

#29
20220250177
2022-08-11

Cutting method and cut article

#30
20220241838
2022-08-04

METHOD FOR PRODUCING BLANK, METHOD FOR PRODUCING PRESS-FORMED PART, METHOD FOR JUDGING SHAPE, PROGRAM FOR JUDGING SHAPE, APPARATUS FOR PRODUCING BLANK, AND BLANK

#31
20220196377
2022-06-23

Set-up apparatus and method for setting up a tool for punching or forming sheet-form materials

#32
20220143674
2022-05-12

Dual action retention mechanism

#33
20220143673
2022-05-12

Punch unit for punching machine

#34
20220115849
2022-04-14

Punch set for electrical box

#35
20220105655
2022-04-07

Cutting device and method for manufacturing a cutting punch

#36
20220080613
2022-03-17

Apparatus for hole-making in an elongated, tubular body, and method of use of the apparatus

#37
20220001438
2022-01-06

BALL-LOCK PUNCH RETAINER INSERTS

#38
20220001437
2022-01-06

SIDE PUNCHING MECHANISM WITH MOVABLE GUIDE BLOCK

#39
20210387245
2021-12-16

STAMPING TOOL COMPRISING AN UPPER TOOL BODY AND A LOWER TOOL BODY ARRANGED AT A DISTANCE FROM THE UPPER TOOL BODY

#40
20210379641
2021-12-09

STAMPING TOOL

#41
20210354188
2021-11-18

Metal fastening die assembly

#42
20210346936
2021-11-11

DEVICE FOR STAMPING AND PUNCHING THROUGH A SHEET-LIKE WORKPIECE

#43
20210331227
2021-10-28

Rotary installation tools for clinch fasteners

#44
20210323045
2021-10-21

Cutting system for soft materials using replaceable blades

#45
20210320309
2021-10-14

Stamping assembly for preparing modular planar interconnect plate

#46
20210291251
2021-09-23

Method for manufacturing out plate for refrigerator

#47
20210246688
2021-08-12

Electric strike installation tool and method

#48
20210245225
2021-08-12

PIERCING ELEMENT DRIVING METHOD, ELEMENT COMPOSITE, AND WELDING MEMBER

#49
20210237141
2021-08-05

Adjustment device of punching device and adjustment method of punching device

#50
20210154723
2021-05-27

Punch Hole Forming Method and Punch Hole Forming Device

#51
20210094086
2021-04-01

Center Punch Driver for Positioning a Fastener

#52
20210086250
2021-03-25

METHOD FOR OPERATING A PROCESSING INSTALLATION WITH A MOVABLE PUNCH

#53
20210078122
2021-03-18

Fastening device for fastening a processing tool to a machine tool, tool arrangement, tool magazine, and method for operating a machine tool

#54
20210002085
2021-01-07

Vacuum plate, sheet material handling apparatus comprising such vacuum plate, and method for making the plate

#55
20200376530
2020-12-03

Induction pressing plate type real-time monitoring apparatus

#56
20200316673
2020-10-08

Manufacturing device and manufacturing method for component having hat-shaped section

#57
20200290107
2020-09-17

STAMPING APPARATUS AND STAMPING METHOD

#58
20200269303
2020-08-27

PUNCHING DEVICE AND SHEARING DEVICE

#59
20200254501
2020-08-13

Learning device and cutting process evaluation system

#60
20200238412
2020-07-30

Method of manufacturing socket punches

#61
20200230682
2020-07-23

Blank, formed article, die assembly, and method for producing blank

#62
20200188984
2020-06-18

Clamping mechanism

#63
20200188983
2020-06-18

Fine blanking press and method for operating the same

#64
20200147825
2020-05-14

Apparatus for hole-making in an elongated, tubular body, and method of use of the apparatus

#65
20200147772
2020-05-14

Method for operating a hydraulically operated handheld device, and hydraulically operated handheld device

#66
20200122220
2020-04-23

Tapered transition pilot

#67
20200096152
2020-03-26

QUICK CONNECT PIVOT JOINTS

#68
20200030868
2020-01-30

Shearing method, shearing device, and shearing facility

#69
20190388951
2019-12-26

Drilling jig and drilling method using this drilling jig

#70
20190381685
2019-12-19

Pipe Drilling Tool And Method For Joining Pipes Using The Same

#71
20190381555
2019-12-19

Fastener enabled multi-plate securement and alignment arrangement

#72
20190381554
2019-12-19

Blanking punch

#73
20190358694
2019-11-28

Forming method of disk-shaped member

#74
20190299272
2019-10-03

Machining planar workpieces

#75
20190285334
2019-09-19

Refrigerator and manufacturing method thereof

#76
20190240715
2019-08-08

Method for shear processing

#77
20190232355
2019-08-01

Joint flange using thickness-increased and cutting-processed pipe and method for manufacturing same

#78
20190217369
2019-07-18

Multiple stroke slotting of planar workpieces

#79
20190217368
2019-07-18

PROCESSING PLANAR WORKPIECES

#80
20190217367
2019-07-18

Tools, machines, and methods for machining planar workpieces

#81
20190176357
2019-06-13

Flexible finger biasing arrangement for punch press machines

#82
20190168276
2019-06-06

Die-pressing punch capable of adjusting initial load of coil spring in accordance with material of workpiece, die-pressing die set, and beveling method

#83
20190156999
2019-05-23

Method for producing magnetic component using amorphous or nanocrystalline soft magnetic material

#84
20190126339
2019-05-02

Manufacturing device for laminated iron core

#85
20190111464
2019-04-18

Hydraulic punch device

#86
20190060973
2019-02-28

Shearing method

#87
20190022740
2019-01-24

Self-aligning swaging punch and method for swaging

#88
20180345351
2018-12-06

Punch Assembly with Quick Release Removable Head

#89
20180318903
2018-11-08

Punch die

#90
20180272408
2018-09-27

Cutting method using a stamping press

#91
20180229392
2018-08-16

PUNCH JAWS AND PUNCH DEVICE COMPRISING A PUNCH SLEEVE AND A PUNCH OPENING

#92
20180207702
2018-07-26

Linear Punch Press and Method for Use

#93
20180169743
2018-06-21

Self-aligning swaging punch

#94
20180147617
2018-05-31

Punch assembly with replaceable punch tip

#95
20180104841
2018-04-19

PUNCH ASSEMBLIES AND METHODS FOR MODIFYING

#96
20180071842
2018-03-15

Punching device, punch and method

#97
20180023651
2018-01-25

Spring deflection control assembly

#98
20170361482
2017-12-21

Notching tool, use and method

#99
20170348752
2017-12-07

Punch die

#100
20170320122
2017-11-09

Blank, formed article, die assembly, and method for producing blank

#101
20170320120
2017-11-09

Punch and die holding apparatus and method

#102
20170291321
2017-10-12

PUNCH ASSEMBLIES AND METHODS FOR MODIFYING

#103
20170291210
2017-10-12

Forged wheel trimming die

#104
20170266712
2017-09-21

Machine tools and methods for processing workpieces with a punching device and laser processing device

#105
20170259321
2017-09-14

Keeper plate alignment arrangement for punch press

#106
20170144320
2017-05-25

Punch tool system

#107
20170120319
2017-05-04

CONTINUOUS PUNCH APPARATUS

#108
20170100850
2017-04-13

Flexible grip die-alignment arrangement

#109
20170087736
2017-03-30

Hydraulic punch machine, and punch carrier for a punch machine

#110
20160375479
2016-12-29

Punch of blanking die including punch and die

#111
20160339502
2016-11-24

Punch assemblies and universal punch therefor

#112
20160332319
2016-11-17

Punch assemblies and methods for modifying

#113
20160318088
2016-11-03

Devices and methods for pressure forming connecting webs between workpiece parts of a plate-like workpiece

#114
20160303754
2016-10-20

Die with profiled base wall

#115
20160256913
2016-09-08

STEPPED PUNCH

#116
20160243606
2016-08-25

Tooling for punching steel sheet and punching method

#117
20160229078
2016-08-11

Punch assembly with replaceable punch tip secured by coupling pin

#118
20160228936
2016-08-11

Punch assembly with replaceable punch tip

#119
20160193747
2016-07-07

Flexible grip die-alignment arrangement

#120
20150367400
2015-12-24

Punch die

#121
20150360276
2015-12-17

Punch die

#122
20150336155
2015-11-26

Method for forming a pressed component, method for manufacturing a pressed component, and die apparatus for forming a pressed component

#123
20150298339
2015-10-22

Draw stud connector

#124
20150283723
2015-10-08

Stationery punching device for creating a decorative craft

#125
20150266200
2015-09-24

Hand tool for punching sheet material

#126
20150158132
2015-06-11

Method and tool for producing an exact-fit cylindrical bore by removal of material from an existing bore with a finishing allowance

#127
20150151348
2015-06-04

Pivoting jaw and motor-actuable handheld apparatus

#128
20150114188
2015-04-30

Hole punching pliers and method of using same

#129
20150090092
2015-04-02

DOUBLE-BOLT UNIT INCLUDING SLIP DISK AND APPLICATION THEREOF

#130
20150047521
2015-02-19

Die unit and system for constructing die units

#131
20140331842
2014-11-13

Punch assemblies and universal punch therefor

#132
20140326034
2014-11-06

Die for a punching device

#133
20140318344
2014-10-30

Die with profiled base wall and its associated punch

#134
20140260490
2014-09-18

Method for assembling stamp for ground bonding strap

#135
20140251104
2014-09-11

Jaw pair for punching out holes

#136
20140251102
2014-09-11

Punching apparatus and punching method

#137
20140202298
2014-07-24

Reprocessed dies

#138
20140157857
2014-06-12

Pilot assembly with press fit insert/body construction and method for metal forming dies

#139
20140033887
2014-02-06

Tool system with interchangeable tool inserts for punching machines

#140
20140007643
2014-01-09

Pressing and stripping apparatus for punch die and push rod thereof

#141
20130340588
2013-12-26

PUNCH ASSEMBLY OF CNC PUNCH PRESS MACHINE

#142
20130319200
2013-12-05

Adjustable punch assemblies and associated adjustment methods

#143
20130312580
2013-11-28

Die and die device

#144
20130199352
2013-08-08

Punch assembly with steel punch point insert removably secured therein

#145
20130152655
2013-06-20

PRESS DIE

#146
20130139667
2013-06-06

Punch assemblies and methods for modifying

#147
20130118331
2013-05-16

Punch assemblies and universal punch therefor

#148
20130055874
2013-03-07

Tool retention devices and related machine tools and methods

#149
20130047813
2013-02-28

Draw stud connector

#150
20120312067
2012-12-13

Die shoe assembly with bearing surface mechanism, and die for use therewith

#151
20120279369
2012-11-08

Punch press

#152
20120227254
2012-09-13

Multi-spindle fastening system

#153
20120192688
2012-08-02

PUNCH TOOL AND METHOD FOR ROTARY BLADES

#154
20120164260
2012-06-28

PIPE PROCESSING APPARATUS

#155
20120067189
2012-03-22

Punching tool

#156
20120067187
2012-03-22

Tool components and related machines and methods

#157
20120060580
2012-03-15

Tool wear compensation devices and related machines and methods

#158
20120042764
2012-02-23

Punching tools and related machines and methods

#159
20120031245
2012-02-09

Punch tool device and method of supplying lubricating oil

#160
20120017734
2012-01-26

Slug float-up preventing mechanism

#161
20110303069
2011-12-15

DETACHABLE PUNCH MOLD

#162
20110283852
2011-11-24

SHEET METAL PUNCHING APPARATUS AND METHOD THEREOF

#163
20110247467
2011-10-13

HEAVY-DUTY PUNCH TECHNOLOGY

#164
20110239834
2011-10-06

METHOD AND APPARATUS FOR PROCESSING HOLE WITH ROUNDED EDGE

#165
20110232451
2011-09-29

Die with a punch module

#166
20110203439
2011-08-25

PUNCHING DIE

#167
20110107888
2011-05-12

Multiple punch and die assembly

#168
20110100184
2011-05-05

Tool press drive

#169
20110094358
2011-04-28

PUNCH FOR PUNCHING SHEET METAL, SHEET METAL PUNCHING APPARATUS HAVING THE PUNCH, AND METHOD THEREFOR

#170
20110086122
2011-04-14

DETACHABLE PUNCH MOLD

#171
20110072948
2011-03-31

Ball-lock retainers and methods for controlling ball bounce in a ball-lock retainer

#172
20110067538
2011-03-24

Flexible grip die-alignment arrangement

#173
20100313725
2010-12-16

PUNCHER

#174
20100212388
2010-08-26

DIE FOR PUNCHING SHEET METAL AND SHEET METAL PUNCHING APPARATUS HAVING THE DIE

#175
20100206150
2010-08-19

STAMPING TOOL

#176
20100199819
2010-08-12

SLUG FLOAT-UP PREVENTING METHOD AND PUNCH TOOL

#177
20100199462
2010-08-12

MOUNTING BAND, MOUNTING ARRANGEMENT AND TOOL FOR HANDLING A MOUNTING BAND

#178
20100139470
2010-06-10

Tool system with interchangeable tool inserts for punching machines

#179
20100132530
2010-06-03

Multi-Use Punch

#180
20100107846
2010-05-06

Punch assemblies and methods for modifying

#181
20100107832
2010-05-06

Adjustable punch assemblies and associated adjustment methods

#182
20100095825
2010-04-22

Biasing assembly for a punching device

#183
20100095824
2010-04-22

Reprocessed dies

#184
20100095815
2010-04-22

Discharging workpiece parts

#185
20100011932
2010-01-21

CUTTING PUNCH HOLDER

#186
20090320550
2009-12-31

Anti-Vibration Die Holder Technology for Fabricating Press

#187
20090282888
2009-11-19

System and method for creating a ground bonding strap

#188
20090266208
2009-10-29

Die stamping system

#189
20090266134
2009-10-29

Stamping die

#190
20090241750
2009-10-01

Holding fixture

#191
20090229432
2009-09-17

Punching method using punch and punch for punching

#192
20090229336
2009-09-17

Punch die and punch machine using the same

#193
20090223032
2009-09-10

Punch assembly

#194
20090199614
2009-08-13

FORMING TOOL AND METHOD FOR POSITIONING THE FORMING TOOL

#195
20090120261
2009-05-14

Die and die device

#196
20090095046
2009-04-16

Punching machine with spring-supported work support

#197
20090044671
2009-02-19

Punch press shedder pin knockout arrangement

#198
20090044584
2009-02-19

Multipart punch for hydro piercing

#199
20090038357
2009-02-12

Piercing device of hydroforming mold

#200
20090019977
2009-01-22

Multi-drive tooling

#201
20080295567
2008-12-04

Punch press die holder with hand-operated retaining clamp

#202
20080295562
2008-12-04

Durable enlarged forming tool technology

#203
20080276783
2008-11-13

Punch tool

#204
20080250841
2008-10-16

Stake punch

#205
20080236356
2008-10-02

PUNCHING DEVICE

#206
20080092713
2008-04-24

Punching die

#207
20080066601
2008-03-20

PUNCHER

#208
20080016937
2008-01-24

Process of forming bend-controlling structures in a sheet of material, the resulting sheet and die sets therefor

#209
20080000338
2008-01-03

Dual headed punch with tapered neck

#210
20070283795
2007-12-13

Punch plug arrangement

#211
20070271979
2007-11-29

Punch For Producing Holes In The Wall Of Hollow Parts Subjected To The Action Of Internal High Pressure

#212
20070209494
2007-09-13

Ball lock punch retainer

#213
20070204466
2007-09-06

Method of forming a boss

#214
20070193033
2007-08-23

Method of forming a bearing device

#215
20070191199
2007-08-16

Cartridge for machine tool

#216
20070175264
2007-08-02

Punching machine with spring-supported work support

#217
20070101849
2007-05-10

Ball-lock punch retainer inserts

#218
20070068352
2007-03-29

Punch with self-contained punch recess adjustment indexing

#219
20060277745
2006-12-14

Method of manufacturing using a die to produce a machined part

#220
20060210209
2006-09-21

Bearing assembly

#221
20060196329
2006-09-07

Method and die for punching or forming

#222
20060169118
2006-08-03

Ball-lock insert assemblies

#223
20060169117
2006-08-03

Alignment ring for a punch

#224
20060107721
2006-05-25

Punch for punching sheet metal and apparatus for punching sheet metal having the punch

#225
20060086230
2006-04-27

Adjustable length punch assembly

#226
20060081107
2006-04-20

Die device

#227
20060075871
2006-04-13

Dual head punch with tapered neck

#228
20060060046
2006-03-23

Biasing assembly for a punching device

#229
20060048623
2006-03-09

Punching tool

#230
20060035104
2006-02-16

Oil seal

#231
20060016312
2006-01-26

Knockout punch with pilot hole locator

#232
20060000336
2006-01-05

Reversible floating punch retainer for punch change retainer tool

#233
20050274251
2005-12-15

Punching device and punching die for it

#234
20050247181
2005-11-10

Slug float-up preventing mechanism

#235
20050236550
2005-10-27

Self-adjusting support for moulds and dies

#236
20050220926
2005-10-06

Die and die device

#237
20050217343
2005-10-06

Punch press die

#238
20050210949
2005-09-29

Punch tool for angled orifice

#239
20050150338
2005-07-14

Slug pulling preventing tooling die

#240
20050061049
2005-03-24

Process of forming bend-controlling structures in a sheet of material, the resulting sheet and die sets therefor

#241
17136531
2024-03-19

Punching device making large rectangular holes in rectangular tubing and method thereof

#242
16911495
2022-11-29

Spot weld removal punch