Patents-Review.com
ClassID:

145982 ⎘

F15B13/015 - CPC Classification

Classification description:

Details of servomotor systems ; Valves for servomotor systems; Locking-valves or other detent i.e. load-holding devices using an enclosed pilot flow valve

Recent Application in this class:
#1
20250243881
2025-07-31

HYDRAULIC CONTROL SYSTEM FOR COUPLER SAFETY KNUCKLE

 #2
20240082079
2024-03-14

Hydraulic valve and system

 #3
20240035491
2024-02-01

Hydraulic valve assembly

 #4
20230175601
2023-06-08

Valve assembly with preloaded control oil return

 #5
20230149231
2023-05-18

Hydraulic valve and system

 #6
20220056914
2022-02-24

High-low system for balers, compactors and transfer station compactors

 #7
20210121338
2021-04-29

Hydraulic valve and system

 #8
20210076555
2021-03-18

Method for detecting inadmissible operating conditions of work hydraulics of an agricultural tractor

 #9
20200096017
2020-03-26

Transmission park valve with steel saddle

 #10
20200095104
2020-03-26

Control valve

 #11
20190376532
2019-12-12

Hydraulic lock and method for a hydraulic system

 #12
20190368516
2019-12-05

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

 #13
20190301495
2019-10-03

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

 #14
20180371719
2018-12-27

System and method for hydraulic actuator lock valve

 #15
20170342686
2017-11-30

Control valve for construction equipment

 #16
20170022688
2017-01-26

Fluid pressure control device

 #17
20160076557
2016-03-17

Counterbalance valve with dual or triple pilot ratio

 #18
20160061228
2016-03-03

Valve Arrangement for the Hydraulic Circuit of a Work Machine

 #19
20150377259
2015-12-31

Construction equipment pressure control valve

 #20
20150323083
2015-11-12

Valve, in particular pilot-operated proportional directional poppet valve

 #21
20150267718
2015-09-24

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

 #22
20150260297
2015-09-17

Valve, in particular pilot-operated proportional directional poppet valve

 #23
20150096619
2015-04-09

Hydraulic valve assembly with tank return flow compensation

 #24
20150075640
2015-03-19

Pneumatic valve assembly and method

 #25
20140124299
2014-05-08

ELECTRO-HYDRAULIC ACTUATOR (EHA) FOR PALLET TRUCK

 #26
20130247750
2013-09-26

Electro-hydraulic pilot operated relief valve

 #27
20130055886
2013-03-07

Double check valve for construction equipment

 #28
20130025720
2013-01-31

Hydraulic control valve for construction machinery

 #29
20120152629
2012-06-21

HYDRAULIC SYSTEM HAVING LOAD LOCK VALVE

 #30
20120037829
2012-02-16

Proportional throttle valve

 #31
20110126920
2011-06-02

Hydraulic valve device

 #32
20110017321
2011-01-27

Directional control valve arrangement

 #33
20090282825
2009-11-19

Actuator control device

 #34
20090050222
2009-02-26

Three-way poppet valve with intermediate pilot port

 #35
20060289073
2006-12-28

Infinitely variable directional valve

 #36
20060213363
2006-09-28

Valve for hydraulic props of shield-type support frames, and shield-type support frame

 #37
20060162544
2006-07-27

Hydraulic control arrangement

 #38
20060150807
2006-07-13

Hydraulic control arrangement

 #39
17000957
2021-10-12

High-low hydraulic system for balers, compactors and transfer station compactors