ClassID:

146488

F15B2211/857 - CPC Classification

Classification description:

Circuits for servomotor systems; Other types of control related to particular problems or conditions Monitoring of fluid pressure systems

Recent Application in this class:
#1
20260153103
2026-06-04

FLUID LEVEL INDICATOR FOR A HYDRAULIC RESERVOIR

#2
20260085500
2026-03-26

Construction Machine

#3
20260079063
2026-03-19

SYSTEMS AND METHODS FOR CONTROL AND MONITORING OF ACTUATED VALVES

#4
20250327469
2025-10-23

HYDRAULIC TOOLS, SYSTEMS FOR TOOLS, AND METHODS OF USE OR CONTROL OF SAME

#5
20250305523
2025-10-02

WORKING MACHINE AND CONTROL METHOD THEREFOR

#6
20250283487
2025-09-11

ABNORMALITY DIAGNOSIS SYSTEM

#7
20250271007
2025-08-28

HYDRAULIC SYSTEM

#8
20250180140
2025-06-05

MONITORING SPRING RETURN ACTUATORS

#9
20250153237
2025-05-15

EARLY WARNING METHOD FOR FATIGUE DAMAGE STATE OF TIE ROD IN DIAMETER EXPANDING MACHINE BASED ON OIL PRESSURE OF POWER CYLINDER

#10
20250137475
2025-05-01

Calibration System in Hydraulic System

#11
20250109756
2025-04-03

METHOD AND SYSTEMS FOR CONTROLLING FLUID TEMPERATURE IN A HYDRAULIC SYSTEM OF AN AIRCRAFT POWERED BY AN HPP

#12
20240369083
2024-11-07

Hydraulic system with a functional safety feature for demolition robots

#13
20240365713
2024-11-07

Bale Collection Monitoring

#14
20240360850
2024-10-31

ACTUATOR DEADHEAD/STALL DETECTION IN A LOAD SENSE HYDRAULIC SYSTEM

#15
20240280119
2024-08-22

LIQUID PRESSURE APPARATUS MONITORING SYSTEM

#16
20240125666
2024-04-18

SYSTEMS AND METHODS FOR CONTROL AND MONITORING OF ACTUATED VALVES

#17
20230358021
2023-11-09

Control method for executing a floating function of a boom, corresponding control systems and work vehicles comprising such control systems

#18
20230167836
2023-06-01

PROGNOSTICATION AND AMELIORATION OF GAS INGRESS IN HYDRAULIC SYSTEMS

#19
20230131734
2023-04-27

Actuator predictive system

#20
20230107001
2023-04-06

Method for Installing a Device for the Monitoring of a Machine Having a Rotating Machine Part

#21
20220389943
2022-12-08

Failure detection apparatus for a hydraulic system

#22
20220356961
2022-11-10

MONITORING SPRING RETURN ACTUATORS

#23
20220333349
2022-10-20

Hydraulic unit

#24
20220196038
2022-06-23

FLUID PRESSURE ACTUATOR AND DETECTION UNIT

#25
20220136532
2022-05-05

Landing gear lifting/lowering EHA system

#26
20220056933
2022-02-24

Method for detecting obstructions in a gas network under pressure or under vacuum and gas network

#27
20220056932
2022-02-24

System and method for automatic calibration of actuators

#28
20220034336
2022-02-03

Method for control of a cylinder

#29
20220026893
2022-01-27

Gas network and method for detecting leaks in a gas network under pressure or under vacuum

#30
20210381654
2021-12-09

GAS NETWORK AND METHOD FOR THE SIMULTANEOUS DETECTION OF LEAKS AND OBSTRUCTIONS IN A GAS NETWORK UNDER PRESSURE OR VACUUM

#31
20210332836
2021-10-28

Accumulator pre-charge monitoring using position sensor

#32
20210310504
2021-10-07

Actuator predictive system

#33
20210302259
2021-09-30

Systems and methods for control and monitoring of actuated valves

#34
20210231050
2021-07-29

Aircraft pneumatic system

#35
20210102561
2021-04-08

Abnormality detecting system and abnormality detecting method

#36
20210088058
2021-03-25

Construction machine

#37
20210079624
2021-03-18

Locking system for a work machine

#38
20210018021
2021-01-21

Hydraulic component

#39
20200292068
2020-09-17

Hydraulic circuit, torque transmission device having a hydraulic circuit, and method for operating a hydraulic circuit

#40
20200291971
2020-09-17

Hydraulic system

#41
20200291970
2020-09-17

Method to automatically detect parameter for pressure dynamics control

#42
20200240231
2020-07-30

Systems and methods for actuating hydraulically-actuated devices

#43
20190388812
2019-12-26

Fluid synthesis monitoring system

#44
20190257327
2019-08-22

Hydraulic cylinder health monitoring and remaining life system

#45
20190234514
2019-08-01

Hydraulic system for an automatic transmission of a motor vehicle

#46
20190226937
2019-07-25

Systems and methods for control and monitoring of actuated valves

#47
20190226355
2019-07-25

Methods and apparatus to diagnose a pneumatic actuator-regulating accessory

#48
20190211851
2019-07-11

Method and system for monitoring health of a hydraulic fluid subsystem

#49
20190194007
2019-06-27

Boom load monitoring

#50
20190186512
2019-06-20

HYDRAULIC SYSTEM CHARACTERISTICS

#51
20190186511
2019-06-20

Leakage modulation in hydraulic systems containing a three-way spool valve

#52
20190186510
2019-06-20

Leakage modulation in hydraulic systems containing a three-way spool valve

#53
20190186106
2019-06-20

Work machine

#54
20190145437
2019-05-16

Cylinder operation state monitoring device

#55
20190063473
2019-02-28

System and method for rephasing fluid-driven actuators

#56
20190033162
2019-01-31

Simple leakage detection in a hydraulic cylinder unit

#57
20180340552
2018-11-29

Pneumatic unit for a hydropneumatic pressure booster

#58
20180321079
2018-11-08

Oil vibration diagnosis apparatus and oil vibration diagnosis method

#59
20180313373
2018-11-01

EQUIPMENT AND METHOD FOR SUPERVISING VALVES IN A HYDRAULIC CIRCUIT, ASSOCIATED HYDRAULIC CIRCUIT AND COMPUTER PROGRAM PRODUCT

#60
20180222599
2018-08-09

Hydraulic actuator and accumulator arrangement

#61
20180216638
2018-08-02

Wind turbine, control device for same, and control method for same

#62
20180180066
2018-06-28

Apparatus and methods for the control of hydraulic actuators

#63
20180161845
2018-06-14

HYDRAULIC TOOL

#64
20180128607
2018-05-10

Method to automatically detect the area ratio of an actuator

#65
20180128290
2018-05-10

Method to automatically detect parameter for pressure dynamics control

#66
20180119713
2018-05-03

SYSTEM AND METHOD FOR HEALTH MONITORING OF HYDRAULIC PUMPS

#67
20180113446
2018-04-26

Integration of online and offline control valve data

#68
20180112797
2018-04-26

Methods and apparatus of assessing a test of a solenoid valve via a positioner

#69
20180103018
2018-04-12

Systems and methods for executing cryptographic operations across different types of processing hardware

#70
20180066493
2018-03-08

Systems and methods for actuating hydraulically-actuated devices

#71
20170350427
2017-12-07

Monitoring device and method for determining operating health of pressure medium operated device

#72
20170328383
2017-11-16

Valve arrangement

#73
20170321394
2017-11-09

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

#74
20170213400
2017-07-27

Pitch trim actuator servicing monitoring system and method

#75
20170152874
2017-06-01

Position detecting sensor of an actuator accomodated in a housing

#76
20170107696
2017-04-20

Work machine

#77
20170073924
2017-03-16

Working machine having a hydraulically operated implement

#78
20170058921
2017-03-02

Automatic oil spill detection system

#79
20170030383
2017-02-02

System and method for in-situ state monitoring of a hydraulic system

#80
20170029256
2017-02-02

Load dependent electronic valve actuator regulation and pressure compensation

#81
20160356396
2016-12-08

Electro-pneumatic actuator

#82
20160282143
2016-09-29

End position detection of a variable hydraulic machine

#83
20160258452
2016-09-08

Method and system for generating an alert relating to a hydraulic actuation system

#84
20160230789
2016-08-11

ACTUATOR PREDICTIVE SYSTEM

#85
20160138724
2016-05-19

Valve group and inlet module of a valve group

#86
20160138624
2016-05-19

Hydraulic Power System with Aeration Sensing for a Mobile Machine

#87
20160131164
2016-05-12

System and method for estimating health and remaining useful life of a hydraulic element

#88
20160027225
2016-01-28

Pitch trim actuator servicing monitoring system

#89
20150267719
2015-09-24

System and method for managing machine power system

#90
20150260205
2015-09-17

Void protection system

#91
20150204358
2015-07-23

Hydraulic system for extreme climates

#92
20150184772
2015-07-02

Valve remote control apparatus

#93
20150007713
2015-01-08

Fault detection system for actuator

#94
20140266711
2014-09-18

Wireless gas condition monitoring device

#95
20140099212
2014-04-10

Automatic oil spill detection system

#96
20140034135
2014-02-06

Hydraulic system with a dynamic seal

#97
20140018964
2014-01-16

Valve contamination dislodgement

#98
20130284532
2013-10-31

SECONDARY STEERING SYSTEM WITH MARGIN PRESSURE DETECTION

#99
20130276516
2013-10-24

Actuator predictive system

#100
20120112759
2012-05-10

System and method for testing a secondary servo control circuit in a redundant control configuration

#101
20110252895
2011-10-20

Method for determining an operating position of an open/closed-valve and field device

#102
20110056194
2011-03-10

HYDRAULIC SYSTEM FOR HEAVY EQUIPMENT

#103
20110056192
2011-03-10

TECHNIQUE FOR CONTROLLING PUMPS IN A HYDRAULIC SYSTEM

#104
20100100274
2010-04-22

Safety device for hydraulic working machine

#105
20100030496
2010-02-04

Leakage detection and fluid level prognostics for aircraft hydraulic systems

#106
20050287017
2005-12-29

Saturation-proof hydraulic control device that is composed of two or more elements

#107
15377193
2017-07-18

Subsea fluid pressure regulation systems and methods