Patents-Review.com
ClassID:

165295 ⎘

G01F23/04 - CPC Classification

Classification description:

Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by dip members, e.g. dip-sticks

Sub-classes:
Recent Application in this class:
#1
20250277687
2025-09-04

DENSITY INVARIANT DISPLACER-TYPE LIQUID LEVEL MEASUREMENT UTILIZING DIFFERENTIAL PRESSURE TRANSMITTER

 #2
20250251269
2025-08-07

GEARBOX FLUID MEASURING DIPSTICK

 #3
20250123135
2025-04-17

WATER INGRESS APPARATUS AND METHODS OF MAKING AND USING THE SAME

 #4
20240271986
2024-08-15

EMPTYING DETECTION DEVICE, EMPTYING SYSTEM AND EMPTYING DETECTION METHOD

 #5
20230003568
2023-01-05

Water gauge for on-site monitoring and early warning

 #6
20220340337
2022-10-27

Fluid port assembly and plug

 #7
20220299353
2022-09-22

LEVEL MEASUREMENT APPARATUS

 #8
20220184752
2022-06-16

Dipstick adapter leak repair method and kit

 #9
20220146299
2022-05-12

Fluid level and composition sensor

 #10
20210257682
2021-08-19

Battery electrolyte level device

 #11
20210254520
2021-08-19

Oil measurement apparatus

 #12
20210246816
2021-08-12

Measuring rod, in particular oil dip-stick, for an internal combustion engine, in particular of a motor vehicle, arrangement of such a measuring rod in a guide tube, and motor vehicle

 #13
20210223086
2021-07-22

Dipstick and electronic fluid level sensor

 #14
20210131852
2021-05-06

Liquid observation device

 #15
20200400482
2020-12-24

Oil level sensor guide

 #16
20200378258
2020-12-03

Method for classifying phreatic leakage disaster level in shallow coal seam mining

 #17
20200363254
2020-11-19

Fluid level gauge or reservoir with built-in light source

 #18
20200239131
2020-07-30

Additively manufactured thermoplastic metering pin with slots for retention hardware

 #19
20200173878
2020-06-04

Engine oil dipstick monitoring apparatus

 #20
20200109984
2020-04-09

Calibration tool for open channel flow measurement

 #21
20200033178
2020-01-30

Dielectric-constant-insensitive fluid level sensor

 #22
20190353063
2019-11-21

Attachment arrangement between rolling and rigid components in a vehicle engine bay

 #23
20190316949
2019-10-17

Tubular Dipstick Apparatus

 #24
20190293469
2019-09-26

Dip stick housing and closure assembly

 #25
20190242280
2019-08-08

Locking plug mechanisms that seal openings of tube structures and methods of sealing openings of the structures

 #26
20190195672
2019-06-27

Fluid level gauge or reservoir with built-in light source

 #27
20190186976
2019-06-20

LEVEL MARKER ISOLATION TYPE OIL LEVEL GAUGE

 #28
20190186727
2019-06-20

Illuminated dipstick

 #29
20190137318
2019-05-09

Isolated capacitive liquid level probe

 #30
20180356272
2018-12-13

Oil level sensor guide

 #31
20180356221
2018-12-13

Water level measurement system and water level control system, and water level measurement method and water level control method using such systems

 #32
20180328770
2018-11-15

OIL LEVEL DETECTING DEVICE

 #33
20180238206
2018-08-23

Engine dipstick

 #34
20180143061
2018-05-24

Fluid level and composition sensor

 #35
20180045549
2018-02-15

Electronic fluid level indicator

 #36
20170348697
2017-12-07

Solids discharge module

 #37
20170342879
2017-11-30

Oil level monitoring system

 #38
20170227392
2017-08-10

Apparatus and method for liquid level measurement and content purity measurement in a sounding tube

 #39
20170219406
2017-08-03

METHOD FOR MONITORING THE FILLING OF RAILWAY TANK CARS

 #40
20170211961
2017-07-27

Inverted oil level sensor assembly

 #41
20170160121
2017-06-08

Field device electronics for a conductive limit-level switch

 #42
20170136423
2017-05-18

Device and method for dispersing paste-like or sticky nutritional substance in a fluid

 #43
20170131012
2017-05-11

System or method for measuring the phase of ammonia in a cooling system

 #44
20170045390
2017-02-16

DEVICE FOR MEASURING THE LEVEL OF A LIQUID

 #45
20170038239
2017-02-09

Apparatus for catching oil drips associated with use of an oil level gauge tool

 #46
20160349093
2016-12-01

Sealable engine fluid measurement probe

 #47
20160334260
2016-11-17

Dipstick assembly and method of forming the same

 #48
20160282166
2016-09-29

Oil level gauge

 #49
20160187178
2016-06-30

Oil level detector

 #50
20160178424
2016-06-23

Snapfit dipstick assembly

 #51
20160069726
2016-03-10

Cap with visible float gauge

 #52
20160003661
2016-01-07

Oil level gauge mounting structure

 #53
20150285668
2015-10-08

Oil level gauge device

 #54
20150135828
2015-05-21

SYSTEM FOR MEASURING FLUID LEVEL

 #55
20150075019
2015-03-19

Concrete deck measuring device

 #56
20150068301
2015-03-12

Dual measurement liquid level transducer

 #57
20140325861
2014-11-06

OIL INSPECTION DEVICE FOR WORK VEHICLE

 #58
20140318236
2014-10-30

Liquid level detection system for a driveline component

 #59
20140230718
2014-08-21

Liquid reduction timing device

 #60
20130305552
2013-11-21

Dipstick assembly with lock system

 #61
20130291634
2013-11-07

Level gauge

 #62
20130291568
2013-11-07

System or method for measuring the phase of ammonia in a cooling system

 #63
20130255372
2013-10-03

Oil level gauge structure

 #64
20130224408
2013-08-29

KNIT SLEEVE FOR AN OIL DIP STICK TUBE, COMBINATION THEREOF, METHOD OF CONSTRUCTION THEREOF AND METHOD OF DAMPENING THE VIBRATION OF AN OIL DIP STICK TUBE

 #65
20130133962
2013-05-30

Construction machine

 #66
20130023452
2013-01-24

METHOD OF IMPROVING OXIDATION STABILITY OF A LUBRICATING COMPOSITION

 #67
20120124810
2012-05-24

PISTON MOVEMENT CONTROL FOR PREPARATIVE CHROMATOGRAPHY COLUMN

 #68
20120097482
2012-04-26

SYSTEM FOR CHECKING OIL LEVEL

 #69
20120067110
2012-03-22

VENTED FUEL SENSOR

 #70
20110247230
2011-10-13

Fluid reservoir assembly

 #71
20110240142
2011-10-06

Valve body cover of automatic transmission

 #72
20110139718
2011-06-16

Piston movement control for preparative chromatography column

 #73
20110073066
2011-03-31

Internal combustion engine

 #74
20110063628
2011-03-17

Apparatus and method for measuring the liquid level of molten metal

 #75
20110061255
2011-03-17

Fluid reservoir assembly

 #76
20110061254
2011-03-17

Instant reading oil dipstick improvements

 #77
20110011366
2011-01-20

Internal combustion engine comprising an integrated oil dipstick guiding element

 #78
20100315246
2010-12-16

ENGINE OIL-LEVEL DETECTION SYSTEM

 #79
20100179747
2010-07-15

LOW-LEVEL OIL SENSOR

 #80
20100154237
2010-06-24

Motor vehicle oil dipstick means

 #81
20100139109
2010-06-10

Instant reading oil dipstick

 #82
20100095547
2010-04-22

Instant reading oil dipstick

 #83
20100061182
2010-03-11

Device for stirring and dosing liquids as well as stirring rod

 #84
20100018308
2010-01-28

Vehicle engine with fluid measuring system

 #85
20090293609
2009-12-03

Measurement device and method of measuring fluid level

 #86
20090285618
2009-11-19

Fluid reservoir wiper assembly

 #87
20090151185
2009-06-18

Locking flexible transmission dipstick

 #88
20090151184
2009-06-18

Locking engine reservoir dipstick module

 #89
20090107234
2009-04-30

System and method for measuring liquid level by image

 #90
20090049706
2009-02-26

Fluid level gauge having swivel blade

 #91
20080314141
2008-12-25

Fluid level measuring gauge

 #92
20080229602
2008-09-25

Temperature sensitive dipstick

 #93
20080216858
2008-09-11

Fluid reservoir wiper assembly

 #94
20080135553
2008-06-12

Cap for safely filling and closing an engine oil tank, in particular of an aircraft engine

 #95
20080098609
2008-05-01

Dip stick

 #96
20080028630
2008-02-07

Oil filling structure of internal combustion engine

 #97
20080022768
2008-01-31

Top view liquid sight level indicator

 #98
20080006120
2008-01-10

TRANSMISSION CASE AND DIPSTICK ASSEMBLY

 #99
20070283921
2007-12-13

Oil level indicating system for internal combustion engine

 #100
20070267412
2007-11-22

Fluid supply assembly with measuring guide

 #101
20070264153
2007-11-15

Color changing dipstick

 #102
20070234798
2007-10-11

Collapsible liquid level measurement device with attachment

 #103
20070170186
2007-07-26

Vent cap for oil tanks of machines and the like equipped with splash guard

 #104
20070000706
2007-01-04

Transmission case and dipstick assembly

 #105
20060180075
2006-08-17

Fluid supply assembly with measuring guide

 #106
20060139177
2006-06-29

Low oil level indicator

 #107
20060075651
2006-04-13

Cap's N Dip's for dummies

 #108
20060000103
2006-01-05

Apparatus for indicating oil temperature and oil level within an oil reservoir

 #109
20050268714
2005-12-08

Fluid measurement apparatus and method

 #110
20050268479
2005-12-08

Oil level gauge guide structure

 #111
20050241171
2005-11-03

Oil level gauge

 #112
20050237169
2005-10-27

Device for reading out from sensors in the engine compartment of a motor-vehicle

 #113
20050150293
2005-07-14

Automatically actuated liquid level sensor

 #114
20050132946
2005-06-23

Repeatable fluid indicator assembly

 #115
20050109104
2005-05-26

Collapsible liquid level measurement device with attachments

 #116
17390144
2023-10-17

Vehicle liquid monitoring system and method

 #117
17150190
2022-05-24

Oil level indicator tube

 #118
16735477
2022-03-08

Dipstick adapter leak repair method and kit

 #119
16056051
2019-11-12

Oil level visualization system

 #120
15215342
2018-09-04

Oil level visualization system

 #121
15015909
2017-06-06

Dipstick adapter assembly

 #122
14950660
2017-04-25

Apparatuses and methods for servicing lubrication in a lower gearcase of an outboard marine engine

 #123
14106497
2016-03-15

Dipstick adapter assembly

 #124
13842893
2015-12-01

Swiveling check plug for heavy-duty commercial gear system housings

 #125
13401120
2014-07-01

Concrete deck measuring device