ClassID:

146443

F15B2211/67 - CPC Classification

Classification description:

Circuits for servomotor systems; Circuit components or control therefor Methods for controlling pilot pressure

Recent Application in this class:
#1
20250354353
2025-11-20

Method of Controlling a Swing System of a Work Machine

#2
20250230634
2025-07-17

HYDRAULIC SYSTEM IN WORK MACHINE

#3
20240426323
2024-12-26

Hydraulic valve bank and mobile hydraulic system

#4
20240301661
2024-09-12

Work Machine

#5
20240117826
2024-04-11

Pilot proportional control valve apparatus, automatic calibration method and medium

#6
20220333622
2022-10-20

Air cylinder, head cover, and rod cover

#7
20220316501
2022-10-06

Flow rate controller and drive device equipped with same

#8
20220228608
2022-07-21

Fluid pressure control device

#9
20220154743
2022-05-19

Hydraulic circuit with combined compensation and energy recovery function

#10
20220154741
2022-05-19

Work machine

#11
20220154738
2022-05-19

Work machine and control method

#12
20220154428
2022-05-19

Hydraulic system in work machine

#13
20220145578
2022-05-12

Construction machine

#14
20220127823
2022-04-28

Work machine

#15
20220120295
2022-04-21

Drive device for hydraulic cylinder in work machine

#16
20220049720
2022-02-17

Flow controller and driving apparatus including the same

#17
20210148386
2021-05-20

Hydraulic system for working machine

#18
20210129677
2021-05-06

Electropneumatically regulated control of a current collector

#19
20210032851
2021-02-04

Electrohydraulic control device for construction machine and method thereof

#20
20200291971
2020-09-17

Hydraulic system

#21
20200271135
2020-08-27

Device for controlling a pressing force of a current collector having a relay valve

#22
20200232188
2020-07-23

Work machine

#23
20200232180
2020-07-23

Construction machine

#24
20200002920
2020-01-02

Hydraulic system for working machine

#25
20190309771
2019-10-10

Hydraulic fluid circuit with fixed minimum back pressure

#26
20190285094
2019-09-19

Hydraulic drive with fast stroke and load stroke

#27
20190106861
2019-04-11

Work machine

#28
20180266080
2018-09-20

Hydraulic system for working machine

#29
20180180066
2018-06-28

Apparatus and methods for the control of hydraulic actuators

#30
20180080507
2018-03-22

Drain valve

#31
20180079634
2018-03-22

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

#32
20170370382
2017-12-28

Hydraulic drive system

#33
20170284064
2017-10-05

Construction machine

#34
20170107696
2017-04-20

Work machine

#35
20170107695
2017-04-20

Hydraulic system for work machine, and work machine

#36
20170107691
2017-04-20

Method for controlling swing motor in hydraulic system and hydraulic system

#37
20170073924
2017-03-16

Working machine having a hydraulically operated implement

#38
20170009784
2017-01-12

Hydraulic control system and method

#39
20160333900
2016-11-17

Hydraulic drive system for construction machine

#40
20160258450
2016-09-08

Control apparatus

#41
20160230370
2016-08-11

Hydraulic system and working machine including the same

#42
20160215481
2016-07-28

Control system for hybrid construction machine

#43
20160160883
2016-06-09

Hydraulic circuit for construction machine

#44
20160138618
2016-05-19

Hydraulic regenerative and recovery parasitic mitigation system

#45
20160002886
2016-01-07

Pilot pressure control system

#46
20150345112
2015-12-03

Work vehicle and work vehicle control method

#47
20150330415
2015-11-19

Hydraulic drive system for construction machine

#48
20150240446
2015-08-27

Hydraulic excavator

#49
20150198183
2015-07-16

Failsafe pilot supply selector valve

#50
20140366521
2014-12-18

Hydraulic drive system

#51
20130145757
2013-06-13

Hydraulic control system

#52
20130055704
2013-03-07

Apparatus for controlling raise speed of working machine for heavy equipment

#53
20120000191
2012-01-05

Hydraulic driving device for work machine

#54
20110283692
2011-11-24

Liquid pressure motor

#55
20100100274
2010-04-22

Safety device for hydraulic working machine

#56
20090205723
2009-08-20

Hydraulic circuit of construction machine

#57
20090151347
2009-06-18

Operation Control Circuit for Construction Machine

#58
20090113887
2009-05-07

Hydraulic Drive Device

#59
20080264499
2008-10-30

Anti-stall system utilizing implement pilot relief

#60
20070062185
2007-03-22

Hydraulic controller for working machine

#61
20060236689
2006-10-26

Apparatus and method for controlling a pump flow of heavy construction equipment

#62
20050160904
2005-07-28

Anti-stall pilot pressure control system for open center systems

#63
20050138924
2005-06-30

Hydraulic drive apparatus

#64
20050098030
2005-05-12

Hydrostatic drive system with a safety device

#65
20050092169
2005-05-05

Control device for a hydraulic lifting arrangement