ClassID:

146407

F15B2211/615 - CPC Classification

Classification description:

Circuits for servomotor systems; Circuit components or control therefor Filtering means

Recent Application in this class:
#1
20250339796
2025-11-06

OIL FILTER DEVICE

#2
20250261574
2025-08-21

HYDRAULIC APPARATUS FOR AGRICULTURAL VEHICLE

#3
20250207517
2025-06-26

OIL PASSAGE CONTROL VALVE AND VALVE TIMING VARYING DEVICE

#4
20240159253
2024-05-16

ELECTRO-HYDRAULIC ACTUATOR SYSTEMS AND METHODS OF OPERATING THE SAME

#5
20230294648
2023-09-21

Brake driving apparatus

#6
20220333617
2022-10-20

ELECTRO-HYDROSTATIC ACTUATION SYSTEM

#7
20220316502
2022-10-06

Intelligent filtration for electric-hydraulic work vehicles

#8
20220154738
2022-05-19

Work machine and control method

#9
20220136535
2022-05-05

Hydraulic circuit including hydraulic decompression energy reclamation

#10
20220074476
2022-03-10

HYDROSTATIC TRANSAXLE

#11
20220056932
2022-02-24

System and method for automatic calibration of actuators

#12
20210363731
2021-11-25

Filter for a hydraulic circuit of an agricultural system

#13
20210332831
2021-10-28

Electrohydrostatic actuator system with an expansion reservoir

#14
20210199188
2021-07-01

Hydraulic oil filter system for a motor vehicle transmission

#15
20200309164
2020-10-01

Servo valves

#16
20200277974
2020-09-03

Pressure control device

#17
20200060065
2020-02-27

Filter system for an agricultural implement

#18
20200049173
2020-02-13

Valve System For Flushing Contaminated Hydraulic Fluid

#19
20200049172
2020-02-13

Control system for flushing contaminated hydraulic fluid

#20
20190388812
2019-12-26

Fluid synthesis monitoring system

#21
20190226502
2019-07-25

Hydraulic tank and method for manufacturing a hydraulic tank

#22
20190195250
2019-06-27

Method and apparatus for cleaning and/or replacing hydraulic oil in hydraulic drives

#23
20190101054
2019-04-04

FILTER ELEMENT FOR A CONNECTING ROD AND CONNECTING ROD FOR AN INTERNAL COMBUSTION ENGINE WITH VARIABLE COMPRESSION

#24
20190090407
2019-03-28

Semi-closed loop hydraulic system for material application machines

#25
20190085878
2019-03-21

Filter band assembly for solenoid-actuated valve

#26
20180361283
2018-12-20

Filter state estimation system and filter state estimation method

#27
20180340555
2018-11-29

Servovalve

#28
20180332761
2018-11-22

Filter system for an agricultural implement

#29
20180320716
2018-11-08

Compressed air preparation device and method for operating same

#30
20180245490
2018-08-30

Mechanical device

#31
20180215116
2018-08-02

Residual load relief system for hydraulic compactors having rotary pumps

#32
20180112771
2018-04-26

Hydraulic control circuit

#33
20180100524
2018-04-12

Axle assembly with hydraulically-operated disconnect mechanism and spin-on hydraulic filter

#34
20170364097
2017-12-21

Fluid metering valve

#35
20170356585
2017-12-14

Damping device

#36
20170306993
2017-10-26

Varnish mitigation process

#37
20160305093
2016-10-20

Work machine

#38
20160258452
2016-09-08

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

#39
20160017900
2016-01-21

Filter device

#40
20160010669
2016-01-14

Hydraulic device and prime mover device

#41
20160003371
2016-01-07

Pneumatic port shield

#42
20150208571
2015-07-30

Agricultural implement with electro-hydraulic cylinders

#43
20130305701
2013-11-21

Hydraulic circuit and control system therefor

#44
20130283776
2013-10-31

Energy-recovery generation system for handling and carrying electric vehicle

#45
20130125539
2013-05-23

Hydraulic control device for working vehicle

#46
20130098468
2013-04-25

Hydraulic distribution system employing a dual pump

#47
20120144820
2012-06-14

Supplementary boosting for hydrostatic transmission circuit

#48
20120006432
2012-01-12

Hydraulic Circuit Supply System

#49
20100129250
2010-05-27

Auxiliary energy-accumulation and flow-enhancement device for hydraulic system of concrete pump

#50
20100051123
2010-03-04

System for supplying hydraulic fluid

#51
20090282824
2009-11-19

Concrete agitating drum driving device

#52
20090165450
2009-07-02

Hydraulic system

#53
20090158725
2009-06-25

Hydraulic pump with control system

#54
20090064865
2009-03-12

Integrated unit for air treatment in pneumatic systems

#55
20080210485
2008-09-04

Control system for frame-steering of a vehicle and method for controlling two steering cylinders in a frame-steered vehicle

#56
20080164115
2008-07-10

Hydraulic circuit for controlling a hybrid clutch and an automatic transmission of a motor vehicle

#57
20080112818
2008-05-15

Auxiliary Energy-Accumulation And Flow-Enhancement Device For Hydraulic System Of Concrete Pump

#58
20070220880
2007-09-27

Hydraulic vehicle stabilizer system with two-stage bi-rotational hydraulic pump system

#59
20070217898
2007-09-20

Access method and apparatus that limit motion according to load and position

#60
20070209982
2007-09-13

Hydraulic lubrication filter circuit

#61
20070131883
2007-06-14

Hydraulic drive system

#62
20070107421
2007-05-17

Dual pump dual pressure hydraulic circuit

#63
20070102223
2007-05-10

Hydraulic power unit

#64
20070062186
2007-03-22

Auxiliary pump for hydrostatic transmission

#65
20060254964
2006-11-16

Method and apparatus for angularly positioning a shaker separator bed

#66
20060248884
2006-11-09

Shuttle valve for bi-rotational power units

#67
20060242957
2006-11-02

Orifice element with integrated filter, slow return valve, and hydraulic drive unit

#68
20060230751
2006-10-19

Electro-hydraulic system for fan driving and brake charging

#69
20060037470
2006-02-23

Fluid circuit and industrial truck having a fluid circuit

#70
20060032222
2006-02-16

Forestry machine with hydraulic system and method for rotor braking

#71
20050252326
2005-11-17

Device for driving a plurality of hydraulic shift cylinders and hydraulic supply system for a twin-clutch transmission

#72
20050217074
2005-10-06

Control system for pneumatically-powered door installation

#73
20050132702
2005-06-23

Continuously variable torque shredder drive

#74
20050132701
2005-06-23

Pressurized hydraulic fluid system with remote charge pump

#75
20050115605
2005-06-02

Progressive-starting unit for pneumatic systems

#76
20050042121
2005-02-24

Hydraulic equipment

#77
18901794
2025-06-24

Inertial load dampening hydraulic system with persistent oil conditioning

#78
15465824
2019-03-05

Transmission and engine configuration

#79
15462398
2019-07-02

Steerable transaxle