ClassID:

167042

G01M3/3263 - CPC Classification

Classification description:

Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers using a differential pressure detector

Recent Application in this class:
#1
20260001406
2026-01-01

LEAK DETECTION SYSTEM FOR VEHICLE BATTERY ENVIRONMENT AND RELATED METHODOLOGY

#2
20250334473
2025-10-30

Light fixture with self-test ability of sealing

#3
20250314551
2025-10-09

AIRFLOW RESISTANCE AND AIR LEAKAGE MEASUREMENT DEVICE

#4
20250116568
2025-04-10

SENSOR CLEANING SYSTEM AND METHOD OF DIAGNOSING FAILURE THEREOF

#5
20250101923
2025-03-27

Hydrogen leak detection system for an aircraft propulsion system

#6
20240426695
2024-12-26

SEALING TEST CABINET FOR BATTERY PACK

#7
20240344914
2024-10-17

DEVICE AND METHOD FOR LEAK TESTING AND/OR LEAKAGE MEASUREMENT OF A COMPONENT

#8
20240159617
2024-05-16

LEAK DIAGNOSIS DEVICE OF FUEL VAPOR TREATMENT APPARATUS

#9
20240077174
2024-03-07

SYSTEM AND METHOD FOR MONITORING AND CONTROL OF STEAM LOST FROM STEAM TRAPS

#10
20230280233
2023-09-07

LEAK DETECTION METHOD AND SYSTEM

#11
20230112995
2023-04-13

Leak detection device

#12
20230079268
2023-03-16

Dispenser head and dispenser for dispensing units of a pharmaceutical drug or a food supplement or food

#13
20230008799
2023-01-12

Leak detection system

#14
20220410717
2022-12-29

LEAK DETECTION SYSTEM FOR VEHICLE BATTERY ENVIRONMENT AND RELATED METHODOLOGY

#15
20220364948
2022-11-17

SYSTEM FOR DETECTING LEAKS AND ASSOCIATED METHOD

#16
20220307938
2022-09-29

Leak check method, leak check apparatus, plating method, and plating apparatus

#17
20220220918
2022-07-14

Fuel system test apparatus and method

#18
20220146365
2022-05-12

Seal tester apparatus and method

#19
20220117471
2022-04-21

Apparatus and method for monitoring differential pressure

#20
20220113218
2022-04-14

Method for leak testing and reference leak device for leak testing

#21
20220082469
2022-03-17

Gas leak sensing device, setting method for gas leak sensing, gas leak sensing method, and tangible medium

#22
20220057289
2022-02-24

Pneumatic leak measurement system based on absolute pressure drop measurement, with reference sample differential compensation

#23
20210385970
2021-12-09

Leak sensor drip tray

#24
20210318201
2021-10-14

Pressure Vessel Leak Detection System

#25
20210302266
2021-09-30

Pressure sensor for evaporated fuel leak detector

#26
20210278308
2021-09-09

Leak inspection device and leak inspection method

#27
20210231522
2021-07-29

Case airtightness evaluation method and evaluation device

#28
20210231521
2021-07-29

Leak detection device

#29
20210198800
2021-07-01

LEAK CHECKING METHOD, LEAK CHECKING APPARATUS, ELECTROPLATING METHOD, AND ELECTROPLATING APPARATUS

#30
20210140846
2021-05-13

Method for checking water sealing of instrumentation for underwater use

#31
20210080341
2021-03-18

Sealability evaluation method and the like and standard artificial leak device

#32
20200340220
2020-10-29

Leak Detection Method and Apparatus

#33
20200298033
2020-09-24

Testing a mask seal

#34
20200209099
2020-07-02

Leak check method, leak check apparatus, plating method, and plating apparatus

#35
20200061400
2020-02-27

DEVICE FOR MEASURING THE LEAKAGE RATE OF AT LEAST ONE ELEMENT OF A PROTECTIVE BREATHING MASK

#36
20200010972
2020-01-09

Leak checking method, leak checking apparatus, electroplating method, and electroplating apparatus

#37
20190285508
2019-09-19

Method for forming and/or testing a bag in the interior space of a container

#38
20190285507
2019-09-19

Method for leak testing and reference leak device for leak testing

#39
20190249325
2019-08-15

Plating method and plating apparatus

#40
20190204178
2019-07-04

Tank testing apparatus and method

#41
20190188990
2019-06-20

Water flow detector WFD01

#42
20190162624
2019-05-30

System and method for automatically detecting leak noise in an aircraft

#43
20190128768
2019-05-02

Plate fin fluid processing device, system and method

#44
20190056285
2019-02-21

Leakage inspection method and leakage inspection device for container to be inspected

#45
20190041292
2019-02-07

Fuel vapor processing device

#46
20190003917
2019-01-03

METHOD AND SYSTEMS FOR A VESSEL LEAKAGE TIGHTNESS TEST

#47
20180328810
2018-11-15

Leak detection with oxygen

#48
20180275007
2018-09-27

Portable appliance testing apparatus

#49
20180259421
2018-09-13

Method for testing a container for tightness

#50
20180188132
2018-07-05

Method and device for testing air tightness

#51
20180149550
2018-05-31

Monitoring system and method for a multiple-walled fluid system

#52
20180135198
2018-05-17

Leak checking method, leak checking apparatus, electroplating method, and electroplating apparatus

#53
20180024025
2018-01-25

Method and system for testing airtightness of a building envelope

#54
20170350784
2017-12-07

Controlling a vacuum system comprising a vacuum generator arrangement

#55
20170254721
2017-09-07

Test methodology to reduce false rejections and increase number of containers tested for tightness

#56
20170215299
2017-07-27

Submerged datacenter

#57
20170104229
2017-04-13

Method for managing ion filter of fuel cell vehicle

#58
20170030799
2017-02-02

Gas leak detection device and gas leak detection method

#59
20160370251
2016-12-22

METHOD AND APPARATUS FOR QUALITY OF SEAL AND PACKAGE INTEGRITY TESTING

#60
20160166859
2016-06-16

Testing a mask seal

#61
20160161361
2016-06-09

Test system and method for flexible containers

#62
20160054194
2016-02-25

Method of inline inspecting and/or testing devices and apparatus to perform such method

#63
20160005296
2016-01-07

Apparatus for self-inspecting waterproof function

#64
20150369692
2015-12-24

Close-type speaker leak test system and method

#65
20150323411
2015-11-12

Method and device for determining and/or monitoring the air tightness of an enclosed room

#66
20150308918
2015-10-29

Leak testing method

#67
20150135803
2015-05-21

Manifold assembly for a portable leak tester

#68
20150107340
2015-04-23

Method for leak testing and leak testing apparatus

#69
20140338427
2014-11-20

Leak test method and leak test apparatus

#70
20140303830
2014-10-09

Evaporative emission control system

#71
20140144103
2014-05-29

Method for determining the integrity and leak tightness of containers in filling lines

#72
20140083170
2014-03-27

Test system and method for flexible containers

#73
20140083169
2014-03-27

Test system and method for flexible containers

#74
20140046605
2014-02-13

Leak detection in fluid conducting conduit

#75
20140013944
2014-01-16

Device for selectively regenerating or performing tank leakage diagnosis of a tank ventilation system

#76
20140007656
2014-01-09

System and method for detecting a leak in an air bed

#77
20130312495
2013-11-28

METHOD AND SYSTEM FOR QUICKLY DETECTING AN ABSENCE OF A LEAK IN A FUEL SYSTEM

#78
20130111972
2013-05-09

Method and apparatus for quality of seal and package integrity testing

#79
20130047706
2013-02-28

System and method for measuring a leakage area for constructing a smoke-ventilation apparatus

#80
20120240664
2012-09-27

Fuel vapor leak detection device

#81
20120215399
2012-08-23

System and method for performing evaporative leak diagnostics in a vehicle

#82
20120186333
2012-07-26

Evaporation system leak diagnostic apparatus

#83
20120118046
2012-05-17

Evaporation leak check system

#84
20120067109
2012-03-22

Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines

#85
20110234426
2011-09-29

Apparatus and method for pressurising an aircraft cabin structure and measuring the amount of leakage of the aircraft cabin structure

#86
20110232380
2011-09-29

SYSTEMS, METHOD AND DEVICES FOR MONITORING FLUIDS

#87
20110100095
2011-05-05

Passive Glovebox Glove Leak Detector

#88
20110046903
2011-02-24

System and method for detecting leaks

#89
20110000282
2011-01-06

PASSIVE GLOVEBOX GLOVE LEAK DETECTOR

#90
20100283621
2010-11-11

Comparative pressure monitoring instrument

#91
20100281952
2010-11-11

Differential comparative pressure monitoring system

#92
20100256930
2010-10-07

SYSTEM AND METHOD FOR DETECTING AND QUANTIFYING CHANGES IN THE MASS CONTENT OF LIQUID STORAGE CONTAINERS

#93
20100251805
2010-10-07

Method for leak testing and leak testing apparatus

#94
20100212404
2010-08-26

Method and apparatus for leak detection in horizontal cylindrical storage tanks

#95
20100206054
2010-08-19

Apparatus and method for leak testing

#96
20100206051
2010-08-19

System and method for detecting a leak in an air bed

#97
20100139370
2010-06-10

Apparatus and method for condition monitoring of a component or structure

#98
20100013646
2010-01-21

Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines

#99
20090299659
2009-12-03

Method for determining the total leak rate of systems impinged upon by pressure, and control apparatus for carrying out said method

#100
20090165535
2009-07-02

LEAK LOCALIZATION IN A CAVITATED BODY

#101
20090158818
2009-06-25

Method of discovering leakage in a heat exchanger

#102
20090132185
2009-05-21

Leak inspection method and leak inspector

#103
20090078357
2009-03-26

METHOD FOR MONITORING FOR CRACKING IN A COMPONANT

#104
20090025457
2009-01-29

METHOD FOR LEAK TESTING AND LEAK TESTING APPARTUS

#105
20090012726
2009-01-08

Method for detecting an operation malfunction of a leakage inspector, and a leakage inspector having a function to detect an operation malfunction thereof

#106
20080314073
2008-12-25

Method for leak detection in heat transfer systems

#107
20080276693
2008-11-13

METHOD FOR LEAK TESTING AND LEAK TESTING APPARATUS

#108
20080221808
2008-09-11

PRESSURE MONITORING SYSTEM

#109
20080216560
2008-09-11

Leak detecting apparatus

#110
20080193207
2008-08-14

Ball and Socket Joint with a Sensor Means and Process for Detecting Tightness

#111
20080173072
2008-07-24

Device for detection of residual content and leakage warning for gas canister

#112
20080120060
2008-05-22

DETECTION OF CATALYST LOSSES IN A FLUID CATALYTIC CRACKER FOR USE IN ABNORMAL SITUATION PREVENTION

#113
20080098801
2008-05-01

Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines

#114
20080072660
2008-03-27

Machine for pressure testing container

#115
20080034843
2008-02-14

Procedure to diagnose a leak in the fuel tank in a fuel tank ventilation system

#116
20080019874
2008-01-24

Systems, method and devices for monitoring fluids

#117
20080016951
2008-01-24

Method for leak testing and leak testing apparatus

#118
20070267232
2007-11-22

Diagnostic control device for a hybrid vehicle

#119
20070186623
2007-08-16

System and method for detecting and quantifying changes in the mass content of liquid storage containers

#120
20070113623
2007-05-24

Method and apparatus for storage tank leak detection

#121
20070056638
2007-03-15

Leak detection and isolation for segmented inflatable structures

#122
20060110292
2006-05-25

Systems, method and devices for monitoring fluids

#123
20060081036
2006-04-20

Method for leak testing and leak testing apparatus

#124
20060037383
2006-02-23

Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines

#125
20050056081
2005-03-17

Leak tester

#126
20050039519
2005-02-24

Method for leak testing and leak testing apparatus

#127
20050005683
2005-01-13

Method and apparatus for storage tank leak detection