ClassID:

129110

E02F9/2282 - CPC Classification

Classification description:

Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups  - ; Drives; Control devices; Hydraulic or pneumatic drives; Hydraulic circuits Systems using center bypass type changeover valves

Recent Application in this class:
#1
20260078819
2026-03-19

WORKING MACHINE

#2
20240368857
2024-11-07

Work machine

#3
20240254729
2024-08-01

Excavator

#4
20240117879
2024-04-11

WORKING MACHINE

#5
20230304262
2023-09-28

Work Machine

#6
20230184265
2023-06-15

Work machine

#7
20230167622
2023-06-01

Work Machine

#8
20230113111
2023-04-13

Hydraulic system

#9
20230085676
2023-03-23

Construction machine

#10
20220356679
2022-11-10

Hydraulic control device for work machine

#11
20220333348
2022-10-20

Work machine

#12
20220316187
2022-10-06

Hydraulic system of construction machine

#13
20220298754
2022-09-22

Control valve of hydraulic system for working machine

#14
20220290408
2022-09-15

Hydraulic system of construction machine

#15
20220267997
2022-08-25

Hydraulic system of construction machine

#16
20220170241
2022-06-02

Flow control valve

#17
20220154429
2022-05-19

Shovel

#18
20220154427
2022-05-19

Excavator

#19
20220112688
2022-04-14

Hydraulic control circuit for working machine

#20
20220112687
2022-04-14

Hydraulic system for working machine

#21
20220090611
2022-03-24

Hydraulic system for working machine

#22
20220049727
2022-02-17

Working machine

#23
20220049464
2022-02-17

Working machine

#24
20220034335
2022-02-03

Hydraulic drive device for traveling work machine

#25
20210372085
2021-12-02

Drift-prevention valve device, blade device, and working machine

#26
20210363731
2021-11-25

Filter for a hydraulic circuit of an agricultural system

#27
20210332562
2021-10-28

Work machine

#28
20210324602
2021-10-21

Construction machine

#29
20210285554
2021-09-16

Valve apparatus and fluid pressure system equipped therewith

#30
20210198865
2021-07-01

SHOVEL AND CONTROL METHOD THEREOF

#31
20210189692
2021-06-24

Systems and methods for bypass of hydraulic charge circuits

#32
20210180618
2021-06-17

Hydraulic system of working machine

#33
20210087782
2021-03-25

Dozer blade attachment control system and apparatus for a compact track loader

#34
20210054592
2021-02-25

Hydraulic drive system for work machine

#35
20210003150
2021-01-07

Hydraulic system of construction machine

#36
20200407944
2020-12-31

Hydraulic system for working machine and the working machine

#37
20200232188
2020-07-23

Work machine

#38
20200217046
2020-07-09

Hydraulic drive system of construction machine

#39
20200199842
2020-06-25

Boom control system for a construction machine

#40
20200190770
2020-06-18

Stick control system in construction machine

#41
20200149244
2020-05-14

Hydraulic system for working machine

#42
20200123739
2020-04-23

Control system for auxiliary power source

#43
20200048859
2020-02-13

Hydraulic system for working machine

#44
20200040917
2020-02-06

System for controlling construction machine and method for controlling construction machine

#45
20190390444
2019-12-26

Shovel having boom raising assisting function using attachment information

#46
20190301136
2019-10-03

Hydraulic system for working machine

#47
20190292753
2019-09-26

Construction machine

#48
20190249390
2019-08-15

Work machine and hydraulic system for work machine

#49
20190234050
2019-08-01

System and method for controlling construction machine

#50
20190226180
2019-07-25

Safety system for construction machine

#51
20190203746
2019-07-04

System for recovering energy from a hydraulic actuator

#52
20190194904
2019-06-27

Construction machine

#53
20190127957
2019-05-02

Working machine

#54
20190127956
2019-05-02

Working machine

#55
20190119879
2019-04-25

Hydraulic system for working machine and control valve

#56
20190017247
2019-01-17

Excavator and control valve for excavator

#57
20180363270
2018-12-20

Shovel and control method thereof

#58
20180361283
2018-12-20

Filter state estimation system and filter state estimation method

#59
20180347151
2018-12-06

SHOVEL AND CONTROL METHOD THEREOF

#60
20180334784
2018-11-22

Hydraulic system for working machine and control valve

#61
20180238027
2018-08-23

Hydraulic pump control system of hydraulic working machine

#62
20180119391
2018-05-03

Hydraulic drive system of construction machine

#63
20180106277
2018-04-19

Valve device and fluid pressure control device

#64
20180073217
2018-03-15

Flow rate control apparatus of construction equipment and control method therefor

#65
20180058040
2018-03-01

Hydraulic drive system of construction machine

#66
20180044891
2018-02-15

Control system for construction machinery

#67
20180002897
2018-01-04

Hydraulic circuit for construction machine

#68
20170276151
2017-09-28

HYDRAULIC CIRCUIT FOR CONSTRUCTION EQUIPMENT

#69
20170241105
2017-08-24

Working machine

#70
20170227028
2017-08-10

Hydraulic drive system for working machine

#71
20170183842
2017-06-29

Hydraulic control system for construction machine

#72
20170175782
2017-06-22

Construction machinery

#73
20170159265
2017-06-08

Work machine and hydraulic system for work machine

#74
20170107694
2017-04-20

Hydraulic excavator drive system

#75
20170074292
2017-03-16

Fluid pressure control device for construction machine

#76
20170037601
2017-02-09

Hydraulic drive system for construction machine

#77
20170022687
2017-01-26

Hydraulic circuit for construction machinery

#78
20170009430
2017-01-12

Working machine control system

#79
20170009424
2017-01-12

Hydraulic control system for work machine

#80
20170002545
2017-01-05

Hydraulic system for work machine

#81
20160356021
2016-12-08

Shovel and method of controlling shovel

#82
20160356020
2016-12-08

Control system for construction machinery and control method for construction machinery using the same

#83
20160348335
2016-12-01

Liquid-pressure driving system

#84
20160333551
2016-11-17

Hydraulic circuit for construction machinery having floating function and method for controlling floating function

#85
20160312442
2016-10-27

Control system of hybrid construction machine

#86
20160312440
2016-10-27

Construction machine

#87
20160305093
2016-10-20

Work machine

#88
20160265560
2016-09-15

Working machine control system and lower pressure selection circuit

#89
20160252107
2016-09-01

Hydraulic excavator drive system

#90
20160251829
2016-09-01

Work vehicle control method, work vehicle control device, and work vehicle

#91
20160222990
2016-08-04

Hydraulic drive system

#92
20160215481
2016-07-28

Control system for hybrid construction machine

#93
20160160884
2016-06-09

Systems and methods for selectively engaged regeneration of a hydraulic system

#94
20160160883
2016-06-09

Hydraulic circuit for construction machine

#95
20160123354
2016-05-05

Shovel and method of controlling shovel

#96
20160069282
2016-03-10

Engine speed controller of work machine

#97
20160032949
2016-02-04

Slewing drive apparatus for construction machine

#98
20160024749
2016-01-28

Hydraulic shovel

#99
20160002887
2016-01-07

Construction machine

#100
20150368880
2015-12-24

Hydraulic construction machinery

#101
20150361995
2015-12-17

Flow control device and flow control method for construction machine

#102
20150354605
2015-12-10

Construction machine

#103
20150354603
2015-12-10

Hybrid construction machine

#104
20150345112
2015-12-03

Work vehicle and work vehicle control method

#105
20150337705
2015-11-26

Hydraulic circuit system for forced regeneration of diesel particulate filter

#106
20150330413
2015-11-19

Hydraulic circuit for construction machine

#107
20150330059
2015-11-19

Liquid-pressure drive system and construction machine including same

#108
20150299987
2015-10-22

Construction machine

#109
20150292183
2015-10-15

Hydraulic system for work machine

#110
20150285274
2015-10-08

Fluid pressure control device for power shovel

#111
20150285241
2015-10-08

Apparatus and method for controlling preferential function of construction machine

#112
20150275938
2015-10-01

Control system for hybrid construction machine

#113
20150275483
2015-10-01

Shovel and control method thereof

#114
20150252554
2015-09-10

Hydraulic drive system for construction machine

#115
20150219123
2015-08-06

Construction machine

#116
20150211501
2015-07-30

Tilting angle control device

#117
20150211211
2015-07-30

Hydraulic circuit for loader

#118
20150204359
2015-07-23

Construction machine

#119
20150184364
2015-07-02

Control system for hybrid construction machine

#120
20150176610
2015-06-25

Hydraulic drive system

#121
20150176609
2015-06-25

Control system for hybrid construction machine

#122
20150132094
2015-05-14

Working machine and method for operating working machine

#123
20150128583
2015-05-14

Travel control valve

#124
20150113970
2015-04-30

Hydraulic system for construction machinery

#125
20150107712
2015-04-23

Multiple valve device

#126
20150068200
2015-03-12

Hydraulic circuit for construction machine and control device for same

#127
20150063967
2015-03-05

Shovel having an engine equipped with a supercharger

#128
20150059332
2015-03-05

Hydraulic circuit for construction machine

#129
20150059331
2015-03-05

Hydraulic circuit for construction machine and control device therefor

#130
20150044007
2015-02-12

Hydraulic control device and construction machine provided with same

#131
20150040552
2015-02-12

Hydraulic circuit for construction machine and control device for same

#132
20150007557
2015-01-08

Boom driving device

#133
20140366517
2014-12-18

System for reducing fuel consumption in excavator

#134
20140323268
2014-10-30

Hydraulic drive of operating machine

#135
20140322045
2014-10-30

Engine overload prevention using a speed differential operated relief valve

#136
20140318116
2014-10-30

Hydraulic control device and construction machinery including same

#137
20140283510
2014-09-25

Hydraulic drive system

#138
20140245730
2014-09-04

Priority control system for construction machine

#139
20140208734
2014-07-31

Work machine

#140
20140186151
2014-07-03

Construction machine

#141
20140123640
2014-05-08

Construction machine

#142
20140107880
2014-04-17

Control system for hybrid construction machine

#143
20140102289
2014-04-17

Shovel and method for controlling shovel

#144
20140088839
2014-03-27

Shovel and method for controlling shovel

#145
20140083092
2014-03-27

Hydraulic circuit for construction equipment

#146
20140007962
2014-01-09

Apparatus for improving excavating operation characteristic and grading operation characteristic of excavator

#147
20140007942
2014-01-09

Method for improving excavating operation characteristic and grading operation characteristic of excavator

#148
20130345939
2013-12-26

Shovel and method for controlling shovel

#149
20130333367
2013-12-19

Hydraulic circuit for pipe layer

#150
20130330160
2013-12-12

Construction machine with working attachment

#151
20130325235
2013-12-05

Electromotive drive device for construction machine

#152
20130318957
2013-12-05

Fluid control system for work vehicle

#153
20130312403
2013-11-28

Hydraulic system for construction machine having electronic hydraulic pump

#154
20130298545
2013-11-14

Hydrostatic system configured to be integrated in an excavator

#155
20130291531
2013-11-07

Hybrid excavator boom actuating system and method for controlling same

#156
20130280111
2013-10-24

Propel circuit and work circuit combinations for a work machine

#157
20130263587
2013-10-10

Relief pressure control device for hydraulic work machine

#158
20130255244
2013-10-03

Hydraulic system for construction machine including emergency control unit for electric hydraulic pump

#159
20130251490
2013-09-26

Working machine with variable displacement hydraulic pump

#160
20130195681
2013-08-01

Method for obtaining a full range of lift speeds using a single input

#161
20130139678
2013-06-06

Hydraulic drive system for hydraulic working machine

#162
20130129459
2013-05-23

Construction machine having hydraulic circuit

#163
20130125539
2013-05-23

Hydraulic control device for working vehicle

#164
20130098022
2013-04-25

Control device for a hydraulic pump of construction machinery

#165
20130047598
2013-02-28

Hydraulic control device for work vehicle

#166
20130035820
2013-02-07

Hybrid construction machine

#167
20130032233
2013-02-07

Hydraulic pressure-regulating valve for construction equipment

#168
20120324877
2012-12-27

System for driving a boom of a hybrid excavator and a control method thereof

#169
20120312007
2012-12-13

Control system for hybrid construction machine

#170
20120312006
2012-12-13

Control system for hybrid construction machine

#171
20120310492
2012-12-06

Hydraulic work machine

#172
20120304630
2012-12-06

Control system for construction machine

#173
20120291427
2012-11-22

ATTACHMENT CONTROL APPARATUS FOR HYDRAULIC EXCAVATOR

#174
20120285157
2012-11-15

Pump control unit for hydraulic system

#175
20120279211
2012-11-08

Pump control operating system of construction machine

#176
20120260637
2012-10-18

Hydraulic driving device for working machine

#177
20120247094
2012-10-04

Hydraulic pump control device for construction machine

#178
20120245806
2012-09-27

Control system for hybrid construction machine

#179
20120245782
2012-09-27

Control system for hybrid construction machine

#180
20120233998
2012-09-20

Control system for hybrid construction machine

#181
20120233996
2012-09-20

System for allocating fluid from multiple pumps to a plurality of hydraulic functions on a priority basis

#182
20120233995
2012-09-20

Hybrid operating machine

#183
20120227391
2012-09-13

Device and method for controlling hydraulic pump of construction machinery

#184
20120227388
2012-09-13

Construction machine

#185
20120198831
2012-08-09

Hydraulic system for working machine

#186
20120167561
2012-07-05

Hybrid type construction machine

#187
20120131913
2012-05-31

Hydraulic swing-controlling apparatus of work machine

#188
20120093624
2012-04-19

Work machine and control method for work machines

#189
20120060487
2012-03-15

Working machine

#190
20120036845
2012-02-16

Hydraulic control apparatus for work machine

#191
20120010790
2012-01-12

Fuel consumption saving control device for work vehicle and fuel consumption saving method for work vehicle

#192
20120003069
2012-01-05

Hydraulic drive apparatus for construction equipment

#193
20110262287
2011-10-27

Hydraulic pump controller for construction machine

#194
20110232787
2011-09-29

Stack valve

#195
20110146283
2011-06-23

Engine lug-down suppressing device for hydraulic work machinery

#196
20100313557
2010-12-16

Hydraulic system for construction equipment having float function

#197
20100293936
2010-11-25

Hydraulic system with improved complex operation

#198
20100186402
2010-07-29

Pump torque control system for hydraulic construction machine

#199
20100043420
2010-02-25

Hydraulic system for construction equipment

#200
20100000211
2010-01-07

HYDRAULIC CONTROL CIRCUIT FOR EXCAVATOR

#201
20090308068
2009-12-17

CONTROL CIRCUIT FOR CONSTRUCTION MACHINE

#202
20090235658
2009-09-24

Inertial body drive system

#203
20090151346
2009-06-18

Shock absorption device and control method thereof for small swing radius excavator

#204
20090044528
2009-02-19

Pump control apparatus for construction machine

#205
20080296522
2008-12-04

Relief pressure switching apparatus for hydraulic working machine

#206
20080236154
2008-10-02

Hydraulic circuit for construction equipment

#207
20080223027
2008-09-18

Hydraulic circuit for construction machine

#208
20080053082
2008-03-06

Straight traveling hydraulic circuit

#209
20070240562
2007-10-18

Straight traveling hydraulic circuit

#210
20070240413
2007-10-18

Fluid circuit with multiple flows from a series valve

#211
20070016349
2007-01-18

Hydraulic control apparatus for hydraulic excavator

#212
20060266029
2006-11-30

Working machine

#213
20060179691
2006-08-17

Hydraulic control device of an excavator with improved loading performance on a slope

#214
20060130473
2006-06-22

Hydraulic control device for controlling a boom-swing frame combined motion in an excavator

#215
20060048508
2006-03-09

Oil pressure circuit for working machines

#216
20050229594
2005-10-20

Hydraulic control system and construction machine

#217
20050204736
2005-09-22

Hydraulic control device for working machine

#218
20050138924
2005-06-30

Hydraulic drive apparatus