Patents-Review.com
ClassID:

203027 ⎘

H01H35/18 - CPC Classification

Classification description:

Switches operated by change of a physical condition Switches operated by change of liquid level or of liquid density, e.g. float switch

Sub-classes:
Recent Application in this class:
#1
20260022847
2026-01-22

MODULATING MAKEUP FLUID CONTROL SYSTEMS AND METHODS FOR SAME

 #2
20250360543
2025-11-27

DRAIN CLEANER APPARATUS

 #3
20240335866
2024-10-10

DRAIN CLEANER APPARATUS

 #4
20240159406
2024-05-16

MODULATING MAKEUP FLUID CONTROL SYSTEMS AND METHODS FOR SAME

 #5
20240082891
2024-03-14

Drain cleaner apparatus

 #6
20230144945
2023-05-11

Drain cleaner apparatus

 #7
20230132194
2023-04-27

Switching device and a liquid level detection apparatus employing the switching device

 #8
20220189718
2022-06-16

BATTERY DISCONNECTION USING WATER SENSING FOR UNDERWATER BATTERY-POWERED POOL CLEANING DEVICES

 #9
20220135317
2022-05-05

System for controlling the supply of water to a rooftop water tank

 #10
20210332994
2021-10-28

Modulating makeup fluid control systems and methods for same

 #11
20210306467
2021-09-30

System and method for detecting and alerting of flooding in telecommunications manholes

 #12
20210078027
2021-03-18

Liquid-dispensing system, apparatus and method

 #13
20210032916
2021-02-04

Structure for operating watertight door by buoyancy

 #14
20210003299
2021-01-07

MODULATING MAKEUP FLUID CONTROL SYSTEMS AND METHODS FOR SAME

 #15
20200321175
2020-10-08

SWITCH DEVICE AND PROTECTIVE DEVICE

 #16
20200088442
2020-03-19

Liquid level sensor mounting systems and methods

 #17
20190378670
2019-12-12

ADJUSTABLE ADD-ON APPARATUSES FOR A SWITCH AND ASSOCIATED METHODS

 #18
20190323876
2019-10-24

Two-wire circuit function by supply modulation

 #19
20190254583
2019-08-22

Incontinence detection system

 #20
20190242374
2019-08-08

Sump pump control

 #21
20190237282
2019-08-01

Electronic device with rotatable switch

 #22
20190234788
2019-08-01

Submersible level sensing with transducer and jacketed cable

 #23
20190101432
2019-04-04

Water fullness alarm device and a dehumidifier

 #24
20190066952
2019-02-28

Float switch

 #25
20190020190
2019-01-17

Power electronics installation

 #26
20190013166
2019-01-10

Electronic unit having a diagnostic function

 #27
20180348028
2018-12-06

Flow or level sensor/switch system

 #28
20180328597
2018-11-15

Overflow preventer

 #29
20180323023
2018-11-08

Methods for controlling the power supply of a vacuum cleaner motor

 #30
20180301302
2018-10-18

Switch device, electronic component, and battery system

 #31
20180294118
2018-10-11

Switch device, electronic component, and battery system

 #32
20180180310
2018-06-28

Modulating makeup fluid control systems and methods for same

 #33
20180128670
2018-05-10

Level switches

 #34
20180084607
2018-03-22

Self regulating mechanism for storage water heater

 #35
20180080661
2018-03-22

Overflow preventer

 #36
20180036755
2018-02-08

Liquid-dispensing system, apparatus and method

 #37
20170276535
2017-09-28

Refrigeration cycle apparatus and liquid level detection sensor

 #38
20170250041
2017-08-31

Magnetically actuated switch

 #39
20170200575
2017-07-13

Environmentally protected switch for activating an electronic device when submersed in a conducting fluid

 #40
20170156556
2017-06-08

Vacuum cleaner switch assembly

 #41
20170148593
2017-05-25

Float switch assembly

 #42
20160238431
2016-08-18

LIQUID SURFACE SENSOR

 #43
20160146490
2016-05-26

Humidifier with water flow control between an upper tank and a lower reservoir

 #44
20160066758
2016-03-10

Systems, methods, and apparatuses for controlling the power supply of a vacuum cleaner motor

 #45
20150332882
2015-11-19

High Temperature Float Switch System

 #46
20150223658
2015-08-13

Systems, methods, and apparatuses for controlling the power supply of a vacuum cleaner motor

 #47
20150194282
2015-07-09

Point level float switch with opposite polarity magnets

 #48
20150143900
2015-05-28

Test and monitoring system for a sump pump installation having a self-monitoring liquid level sensing module

 #49
20140345977
2014-11-27

Fluid level detection device with stabilizer

 #50
20140263978
2014-09-18

SELF-CALIBRATION METHOD FOR A PHOTOELECTRIC LIQUID LEVEL SWITCH AND APPARATUS USING THE SAME

 #51
20140183021
2014-07-03

FLOAT SWITCH DEVICE WITH MAGNETIC TONGUE

 #52
20140041449
2014-02-13

Battery pack assembly including apparatus for detecting water accumulation and method for detecting water accumulation

 #53
20140015342
2014-01-16

Printed hydrostatic versatile multiple liquid level switch

 #54
20130105002
2013-05-02

Circulating liquid bath with dual reservoir level switch

 #55
20130077915
2013-03-28

Optical cable

 #56
20130047720
2013-02-28

Water level sensor switch

 #57
20120312397
2012-12-13

Multiple switch float switch apparatus

 #58
20110200452
2011-08-18

Multiple switch float switch apparatus

 #59
20110170824
2011-07-14

Optical switch

 #60
20100269585
2010-10-28

LIQUID DETECTING DEVICE

 #61
20100200082
2010-08-12

Liquid level monitor including electromechanical float switch having reduced liquid migration into the switch

 #62
20100155211
2010-06-24

SNAP SWITCH

 #63
20100129232
2010-05-27

FLOAT DEVICE FOR A SEWAGE PUMP

 #64
20100089086
2010-04-15

Device for controlling a condensate removal pump

 #65
20100066548
2010-03-18

Optical switch

 #66
20100043544
2010-02-25

DEVICE AND METHOD FOR MONITORING A GAS VOLUME IN A UNIT FILLED WITH LIQUID

 #67
20100042310
2010-02-18

Engine oil level detection system

 #68
20090294269
2009-12-03

Oil level detecting switch

 #69
20080223709
2008-09-18

Fluid level switch

 #70
20080141771
2008-06-19

Liquid level detection apparatus

 #71
20070227244
2007-10-04

Fluid level switch

 #72
20070186979
2007-08-16

Device for maintaining the water level in pools, ponds and fountains

 #73
20070119230
2007-05-31

Device and method for monitoring a gas volume in a unit filled with liquid

 #74
20070089974
2007-04-26

Float switch assembly

 #75
20070058956
2007-03-15

Vapor-emitting device with an active end of use indicator

 #76
20070058955
2007-03-15

VAPOR-EMITTING DEVICE WITH A SOLAR-POWERED, ACTIVE END OF USE INDICATOR

 #77
20060283694
2006-12-21

Liquid level sensor switch

 #78
20060042918
2006-03-02

Float switch and mounting system assembly

 #79
20060019536
2006-01-26

Liquid level detection apparatus

 #80
20050284506
2005-12-29

Water level sensor and dishwasher having the same

 #81
20050175466
2005-08-11

Enclosed pump switch level control system

 #82
20050087432
2005-04-28

Float switch transient suppression device

 #83
20050062594
2005-03-24

Fuel overflow alarm system

 #84
20050005951
2005-01-13

Dishwasher float mounting bracket with retainer cover

 #85
18904391
2025-10-28

Enhanced dual float switch with illumination and switch discrimination

 #86
16431210
2020-11-17

Invertible optical float switch

 #87
16373737
2020-09-08

Float assembly

 #88
15968029
2019-07-16

Incontinence detection system

 #89
15709175
2018-12-11

Automated toilet seat actuator and associated use thereof

 #90
15092680
2017-09-19

Multiple switch float switch apparatus having a magnetic coupling

 #91
14860988
2017-10-10

Septic overflow warning system