ClassID:

145919

F15B11/003 - CPC Classification

Classification description:

Servomotor systems without provision for follow-up action; Circuits therefor Systems with load-holding valves

Recent Application in this class:
#1
20260139694
2026-05-21

LINEAR ACTUATOR ASSEMBLY AND SYSTEM

#2
20250361883
2025-11-27

HYDRAULIC SYSTEM

#3
20240271640
2024-08-15

FLUID PRESSURE CONTROL DEVICE

#4
20240150161
2024-05-09

Working equipment with capabilities of preventing buckling of hydraulic cylinder

#5
20240141932
2024-05-02

Hydraulic arrangement with load-holding function and hydraulic arrangement control method

#6
20240035491
2024-02-01

Hydraulic valve assembly

#7
20230035122
2023-02-02

Power units with manual override controls for hydraulic systems

#8
20220299046
2022-09-22

Spool valve and hydraulic apparatus including the same

#9
20220163054
2022-05-26

Linear actuator assembly and system

#10
20220025910
2022-01-27

SELF-CONTAINED ENERGY EFFICIENT HYDRAULIC ACTUATOR SYSTEM

#11
20220003253
2022-01-06

Power units with manual override controls for hydraulic systems

#12
20210372085
2021-12-02

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

#13
20210341001
2021-11-04

Pilot control mechanism for boom bounce reduction

#14
20210102626
2021-04-08

Hydraulic system of work machine and work machine

#15
20210033067
2021-02-04

Hydraulic driving system and driving method for barring

#16
20210010490
2021-01-14

Control method and system for using a pair of independent hydraulic metering valves to reduce boom oscillations

#17
20200407945
2020-12-31

Excavator

#18
20200385952
2020-12-10

AN IMPLEMENT ATTACHMENT DEVICE

#19
20200362890
2020-11-19

Power units with manual override controls for hydraulic systems

#20
20200347854
2020-11-05

Linear Actuator Assembly and System

#21
20200292071
2020-09-17

Method for controlling a hydraulic system

#22
20200248720
2020-08-06

Hydraulic system and method for reducing boom bounce with counter-balance protection

#23
20200224764
2020-07-16

Hydraulic system of work machine and work machine

#24
20200224682
2020-07-16

Linear actuator assembly and system

#25
20200095104
2020-03-26

Control valve

#26
20200063761
2020-02-27

Hydraulic drive device for cargo vehicle

#27
20200056631
2020-02-20

Electrohydraulic counterbalance and pressure relief valve

#28
20200048919
2020-02-13

Large manipulator and hydraulic circuit arrangement for a large manipulator

#29
20200032820
2020-01-30

Pilot control mechanism for boom bounce reduction

#30
20200018329
2020-01-16

Apparatus for controlling a hydraulic machine

#31
20200003239
2020-01-02

Methods and apparatus to enable boom bounce reduction and prevent un-commanded motion in hydraulic systems

#32
20200003238
2020-01-02

Power units with manual override controls for hydraulic systems

#33
20190376532
2019-12-12

Hydraulic lock and method for a hydraulic system

#34
20190368516
2019-12-05

Hydraulic system with a counterbalance valve configured as a meter-out valve and controlled by an independent pilot signal

#35
20190301495
2019-10-03

Hydraulic system with a counterbalance valve configured as a meter-out valve and controlled by an independent pilot signal

#36
20190211848
2019-07-11

Hydraulic systems for shrinking landing gear

#37
20190202675
2019-07-04

Hydraulic unit

#38
20190178264
2019-06-13

VEHICLE CONTROL DEVICE

#39
20190150358
2019-05-23

Control device, agricultural vehicle and method for operating an agricultural vehicle

#40
20190106306
2019-04-11

Brake device for braking a hydraulic motor of a turning body in a working machine

#41
20190101137
2019-04-04

Control method and system for using a pair of independent hydraulic metering valves to reduce boom oscillations

#42
20190029165
2019-01-31

Agricultural implement and row units including double acting actuator systems, methods, and apparatus

#43
20180371719
2018-12-27

System and method for hydraulic actuator lock valve

#44
20180347599
2018-12-06

VALVE DEVICE

#45
20180156244
2018-06-07

Split spool valve

#46
20180156243
2018-06-07

Hydraulic system and method for reducing boom bounce with counter-balance protection

#47
20180148159
2018-05-31

Latch pin assembly

#48
20180119711
2018-05-03

SELF-CONTAINED ENERGY EFFICIENT HYDRAULIC ACTUATOR SYSTEM

#49
20180100520
2018-04-12

Hydraulic suspension for vehicle and multi-functional proportional control valve for the same

#50
20180044145
2018-02-15

LIFTING ARRANGEMENT

#51
20170342686
2017-11-30

Control valve for construction equipment

#52
20170261009
2017-09-14

HYDRAULIC CONTROL DEVICE

#53
20170204886
2017-07-20

Methods and apparatus to enable boom bounce reduction and prevent un-commanded motion in hydraulic systems

#54
20170204883
2017-07-20

Control device for zero-leak directional control valves

#55
20170146035
2017-05-25

Linear actuator assembly and system

#56
20170114807
2017-04-27

Linear actuator assembly and system

#57
20160312806
2016-10-27

Apparatus for blocking and for adjusting a pressure

#58
20160298660
2016-10-13

Pilot control mechanism for boom bounce reduction

#59
20160273673
2016-09-22

Valve device and use of such a valve device

#60
20160222989
2016-08-04

Control method and system for using a pair of independent hydraulic metering valves to reduce boom oscillations

#61
20160207608
2016-07-21

Latch pin assembly for folding wing tip system

#62
20160195111
2016-07-07

Fluid pressure control apparatus

#63
20160178069
2016-06-23

Valve connected to a feed circuit, a feed circuit comprising such a valve and a feeding method operating such a feed circuit

#64
20160108936
2016-04-21

Hydraulic system and method for reducing boom bounce with counter-balance protection

#65
20160102685
2016-04-14

Self-contained energy efficient hydraulic actuator system

#66
20160084277
2016-03-24

Hydraulic system for a working machine and a method for controlling a hydraulic system

#67
20160084271
2016-03-24

Method to detect hydraulic valve failure in hydraulic system

#68
20160084270
2016-03-24

Electrohydraulic control circuit

#69
20160061228
2016-03-03

Valve Arrangement for the Hydraulic Circuit of a Work Machine

#70
20160052760
2016-02-25

Method for controlling a combined rotary/push movement

#71
20160032947
2016-02-04

Construction machine

#72
20150308463
2015-10-29

Smooth control of hydraulic actuator

#73
20150275927
2015-10-01

Electro-hydrostatic actuator deceleration rate control system

#74
20150267718
2015-09-24

System preventing pressured oil leakage to cylinder line in control valve systems with flow divider

#75
20150096291
2015-04-09

Fluid pressure control device

#76
20150013322
2015-01-15

Fluid pressure control device

#77
20150013318
2015-01-15

Hydraulic pressure control device for swing motor for construction machinery

#78
20140299030
2014-10-09

Hydraulic steering arrangement for a thruster of a marine vessel

#79
20140250877
2014-09-11

Hydraulic suspension for vehicle and multi-functional proportional control valve for the same

#80
20140245732
2014-09-04

Proportional directional control valve, and hydraulic circuit and hydropneumatic suspension system having such a valve

#81
20140124299
2014-05-08

ELECTRO-HYDRAULIC ACTUATOR (EHA) FOR PALLET TRUCK

#82
20140053543
2014-02-27

Hydraulic valve device

#83
20140010688
2014-01-09

Hydraulic circuit for controlling booms of construction equipment

#84
20130298541
2013-11-14

Load energy assist and horsepower management system

#85
20130098464
2013-04-25

Closed-loop hydraulic system having regeneration configuration

#86
20120260642
2012-10-18

Load holding for meterless control of actuators

#87
20120260641
2012-10-18

Overrunning pump protection for flow-controlled actuators

#88
20120152629
2012-06-21

HYDRAULIC SYSTEM HAVING LOAD LOCK VALVE

#89
20120133200
2012-05-31

Brake system and method

#90
20120085601
2012-04-12

Shut-off valve for hydraulic system

#91
20110162744
2011-07-07

Device for piloting by means of a substantially incompressible fluid

#92
20110023477
2011-02-03

Hydrostatic circuit lock valve components, circuits, systems, and method

#93
20100242719
2010-09-30

Hydraulic load control valve device

#94
20100236234
2010-09-23

Hydraulic valve device

#95
20100212308
2010-08-26

Hydraulic control arrangement

#96
20100206413
2010-08-19

Hydraulic valve device

#97
20100186401
2010-07-29

Method and hydraulic control system for supplying pressure medium to at least one hydraulic consumer

#98
20100180761
2010-07-22

Hydraulic control system

#99
20100139476
2010-06-10

Valve arrangement having individual pressure scale and load-lowering valve

#100
20100101120
2010-04-29

Fluid pressure drive unit and snow removal unit

#101
20100096576
2010-04-22

VALVE BLEED SYSTEM

#102
20100083651
2010-04-08

Circuit for controlling a double-action hydraulic drive cylinder

#103
20100012200
2010-01-21

CONTROL SYSTEM FOR A HYDRAULIC ELEMENT

#104
20090301589
2009-12-10

DIRECT ACTING ZERO LEAK 4/3 TANDEM CENTER NEUTRAL VALVE

#105
20090294746
2009-12-03

Electrohydraulic leak compensation

#106
20090145123
2009-06-11

Hydraulic circuit having holding valve of external pilot pressure operation type

#107
20080302098
2008-12-11

Hydraulic control apparatus

#108
20080223456
2008-09-18

Hydraulic valve arrangement

#109
20080184876
2008-08-07

Hydraulic actuator having an auxiliary valve

#110
20080184875
2008-08-07

Valve assembly and a hydraulic actuator comprising the valve assembly

#111
20080184874
2008-08-07

Hydraulic actuator for a servomotor with an end lock function

#112
20080141669
2008-06-19

Device for increasing pressure in cylinders with control unit

#113
20080073155
2008-03-27

Loader

#114
20080072749
2008-03-27

Hydraulic valve assembly with a pressure compensated directional spool valve and a regeneration shunt valve

#115
20080063501
2008-03-13

Loader

#116
20070278752
2007-12-06

Hydro-pneumatic vehicle suspension system with a double acting cylinder and accumulators

#117
20070169620
2007-07-26

Control device for a work device comprising a scoop held on an extension arm

#118
20070169473
2007-07-26

HYDRAULIC CIRCUIT

#119
20070151442
2007-07-05

Valve device

#120
20070056280
2007-03-15

Loading implement and process for loading implement

#121
20070022750
2007-02-01

Hydraulic arrangement

#122
20070012038
2007-01-18

Hydraulic arrangement

#123
20060289239
2006-12-28

Hydraulic double ram lifting platform

#124
20060266210
2006-11-30

Hydraulic system having a post-pressure compensator

#125
20060201321
2006-09-14

Hydraulic control arrangement

#126
20060185355
2006-08-24

Hydraulic gravitational load energy recuperation

#127
20060163508
2006-07-27

Hydraulic circuit in work vehicle

#128
20060123672
2006-06-15

Drive device of hydraulic cylinder for working

#129
20060090460
2006-05-04

Hydraulic system having a pressure compensator

#130
20060011875
2006-01-19

Hydraulically controlled valve comprising at least one hydraulic drive unit

#131
20050257519
2005-11-24

Hydraulic valve arrangement

#132
20050254933
2005-11-17

Apparatus driven by a pressurized medium

#133
20050247188
2005-11-10

Hydraulic control valve having holding valve with improved response characteristics

#134
20050242310
2005-11-03

Control valve apparatus and pressure circuit

#135
20050199295
2005-09-15

Electrohydraulic control device

#136
20050198949
2005-09-15

Hydraulic arrangement

#137
20050132876
2005-06-23

Position control device for a hydraulic actuator and interface plate for a servovalve implementing such a device

#138
20050044849
2005-03-03

Hydraulic control arrangement for a mobile work machine

#139
16246924
2020-05-12

Proportional fluid flow control valve configured to generate a pressure-boosted pilot fluid signal

#140
16246921
2020-09-15

Proportional fluid flow control valve having a built-in check valve and configured to generate a pilot signal

#141
15954884
2019-12-03

Electrohydraulic counterbalance and pressure relief valve

#142
14215974
2016-08-30

Enabling valve having separate float and lift down positions