ClassID:

146393

F15B2211/575 - CPC Classification

Classification description:

Circuits for servomotor systems; Pressure control Pilot pressure control

Sub-classes:
Recent Application in this class:
#1
20250230634
2025-07-17

HYDRAULIC SYSTEM IN WORK MACHINE

#2
20250188710
2025-06-12

HYDRAULIC DRIVE APPARATUS

#3
20230078399
2023-03-16

Valve calibration system and calibration method

#4
20230022750
2023-01-26

Dynamic Logic Element For Controlling Pressure Limit In Hydraulic System

#5
20220154741
2022-05-19

Work machine

#6
20220154428
2022-05-19

Hydraulic system in work machine

#7
20220127823
2022-04-28

Work machine

#8
20220049720
2022-02-17

Flow controller and driving apparatus including the same

#9
20210364083
2021-11-25

Continuous variable transmission hydraulic pressure control device

#10
20210148386
2021-05-20

Hydraulic system for working machine

#11
20200392702
2020-12-17

Articulation system for an earthmoving machine

#12
20200291971
2020-09-17

Hydraulic system

#13
20200240439
2020-07-30

Hydraulic system in work machine

#14
20200002920
2020-01-02

Hydraulic system for working machine

#15
20190309771
2019-10-10

Hydraulic fluid circuit with fixed minimum back pressure

#16
20190194910
2019-06-27

Hydraulic drive system for electrically-driven hydraulic work machine

#17
20190186106
2019-06-20

Work machine

#18
20190106861
2019-04-11

Work machine

#19
20190101139
2019-04-04

Hydraulic system in work machine

#20
20190085876
2019-03-21

Hydraulic system

#21
20180180066
2018-06-28

Apparatus and methods for the control of hydraulic actuators

#22
20180142445
2018-05-24

Electro-hydraulic feed delivery system

#23
20180080507
2018-03-22

Drain valve

#24
20180079634
2018-03-22

Hydraulic clamping systems having load side-shifting variably responsive to load weight

#25
20180031006
2018-02-01

Fluid pressure control device

#26
20170370382
2017-12-28

Hydraulic drive system

#27
20170342686
2017-11-30

Control valve for construction equipment

#28
20170342685
2017-11-30

Hydraulic drive system of construction machine

#29
20170321394
2017-11-09

Method for compensating for flow rate of hydraulic pump of construction machine

#30
20170241448
2017-08-24

Control device for hydraulic traveling device

#31
20170107697
2017-04-20

Shovel and method of controlling shovel

#32
20170107691
2017-04-20

Method for controlling swing motor in hydraulic system and hydraulic system

#33
20170081826
2017-03-23

Compact wheel loader

#34
20170073924
2017-03-16

Working machine having a hydraulically operated implement

#35
20160369480
2016-12-22

Work machine

#36
20160160883
2016-06-09

Hydraulic circuit for construction machine

#37
20160061228
2016-03-03

Valve Arrangement for the Hydraulic Circuit of a Work Machine

#38
20150345112
2015-12-03

Work vehicle and work vehicle control method

#39
20150096291
2015-04-09

Fluid pressure control device

#40
20150033728
2015-02-05

Hydrostatic drive, in particular hydrostatic fan drive

#41
20150033719
2015-02-05

Reducing dig force in hydraulic implements

#42
20120031088
2012-02-09

HYDRAULIC DRIVE SYSTEM FOR CONSTRUCTION MACHINE

#43
20120024531
2012-02-02

Autochoke system

#44
20110132472
2011-06-09

Device for controlling a pilot pressure signal

#45
20100258192
2010-10-14

Method for actuating a hydraulic servo system

#46
20100100274
2010-04-22

Safety device for hydraulic working machine

#47
20090094973
2009-04-16

Hydraulic circuit for heavy equipment

#48
20090026002
2009-01-29

Hydraulic power steering apparatus

#49
20080223456
2008-09-18

Hydraulic valve arrangement

#50
20080066814
2008-03-20

Two-stage servo-valve

#51
20080017261
2008-01-24

Proportional pressure control valve

#52
20070137192
2007-06-21

Circuit arrangement

#53
20060288862
2006-12-28

Hydraulic circuit for option device of heavy construction equipment

#54
20060179831
2006-08-17

Semi-active ride control for a mobile machine

#55
20060156914
2006-07-20

Hydraulic control

#56
20060137337
2006-06-29

Fluid pump control device for wheel loaders

#57
20060080955
2006-04-20

Hydraulic circuit device of hydraulic working machine

#58
20050173008
2005-08-11

Proportional pressure control valve

#59
20050160904
2005-07-28

Anti-stall pilot pressure control system for open center systems

#60
20050087242
2005-04-28

Proportional pressure control valve

#61
20050071064
2005-03-31

Signal processing system for construction machine

#62
20050045028
2005-03-03

Regulated pressure supply for a variable-displacement reversible hydraulic motor