ClassID:

167013

G01M3/226 - CPC Classification

Classification description:

Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators

Sub-classes:
Recent Application in this class:
#1
20260031410
2026-01-29

METHOD AND APPARATUS FOR LEAK TESTING A BATTERY CELL

#2
20250224300
2025-07-10

TEST BENCH FOR IMPACT LEAKAGE DETECTION OF WATER HYDRAULIC CYLINDER BASED ON HELIUM GAS DETECTION

#3
20250164341
2025-05-22

POSITIVE CONTROL SYSTEM AND METHOD FOR VALIDATING POSITIVE CONTROL OF CONTAINER CLOSURE INTEGRITY TESTING

#4
20250003824
2025-01-02

SYSTEM AND METHOD FOR DETECTING LEAKS IN A FLUID FILLED VESSEL

#5
20240319035
2024-09-26

SYSTEM FOR DETECTING LEAKS FROM CONTAINERS

#6
20240177810
2024-05-30

METHODS AND APPARATUS FOR MANAGING A HYDROGEN STORAGE AND DISTRIBUTION SYSTEM

#7
20240060735
2024-02-22

DETECTION OF LEAKS IN HEAT EXCHANGERS

#8
20230393015
2023-12-07

METHOD OF DETERMINING A CONTAINER TIGHTNESS

#9
20230393014
2023-12-07

LEAKAGE DETECTION FOR PRESSURIZED FUEL TANKS

#10
20230324250
2023-10-12

SYSTEM AND METHOD FOR DETECTING LEAKS IN A FLUID FILLED VESSEL

#11
20230221205
2023-07-13

Method for box leak detection and leak detection system

#12
20230202448
2023-06-29

System and method of checking sealing of a brake caliper housing

#13
20230088151
2023-03-23

SYSTEM AND METHOD FOR DETERMINING THE INTEGRITY OF CONTAINERS BY OPTICAL MEASUREMENT

#14
20230069606
2023-03-02

AUTONOMOUS FIBER OPTIC SYSTEM FOR DIRECT DETECTION OF CO2 LEAKAGE IN CARBON STORAGE WELLS

#15
20220381669
2022-12-01

High-temperature and high-pressure equipment and method for microscopic visual sulfur deposit seepage test

#16
20220316977
2022-10-06

Leak detection device

#17
20220291072
2022-09-15

OPTICAL LIQUID COOLANT LEAK DETECTOR

#18
20220255098
2022-08-11

Leak test method for fuel cell stack

#19
20220228943
2022-07-21

Method and apparatus for ascertaining the presence of cracks in sealed containers

#20
20220221366
2022-07-14

Method and apparatus for recognizing the presence of leakages from sealed containers

#21
20220196511
2022-06-23

Apparatus and methods for testing the integrity of containment sumps

#22
20220080940
2022-03-17

System and method of checking sealing of a brake caliper housing

#23
20220034453
2022-02-03

Method for checking the leakproofness of a leakproof and thermally insulating tank for storing a fluid

#24
20210396624
2021-12-23

System and method for testing closure integrity of a sealed container at cryogenic temperatures

#25
20210389206
2021-12-16

Device and method for leakage testing of a connection between a rubber stopper and a corresponding drug container

#26
20210364381
2021-11-25

Leak detection device

#27
20210341349
2021-11-04

Crack identification in IC chip package using encapsulated liquid penetrant contrast agent

#28
20210305603
2021-09-30

Method for inspecting gas leak from fuel cell stack

#29
20210131904
2021-05-06

System and method for detecting leaks in a fluid filled vessel

#30
20200141830
2020-05-07

System and method for detecting leaks in a fluid filled vessel

#31
20200141829
2020-05-07

System and method for detecting leaks in a fluid filled vessel

#32
20200072516
2020-03-05

Apparatus for injecting a fluid in a pressurized air conditioning or refrigeration system

#33
20190368963
2019-12-05

Leak detection for heat exchanger plate

#34
20190178743
2019-06-13

Apparatus and methodologies for leak detection using gas and infrared thermography

#35
20190170604
2019-06-06

Systems and methods for refrigerant leak management

#36
20190120715
2019-04-25

Gas leak search using a test gas spray device

#37
20180372578
2018-12-27

Apparatus and methods for testing the integrity of containment sumps

#38
20180365964
2018-12-20

Method and system to monitor container conditions

#39
20180364129
2018-12-20

System and method for detecting leaks in a fluid filled vessel

#40
20180313763
2018-11-01

Optical detection of tracer gases in a gas discharge cell having unexposed electrodes

#41
20180299343
2018-10-18

Methods for detecting leaks for pharmaceutical packages such as parenteral packages and bulk pharmaceutical bags

#42
20180287224
2018-10-04

Battery device, battery monitoring device and battery monitoring method

#43
20180275010
2018-09-27

Detecting test gas fluctuations during sniffer leak searching

#44
20180202889
2018-07-19

Method for controlling the leaktightness of sealed products and installation for the detection of leaks

#45
20180172603
2018-06-21

Inspection method and inspection device for the closure control of containers

#46
20180148759
2018-05-31

Apparatus and method for carrying out an integrity test

#47
20180045143
2018-02-15

Methods and systems for evaporative emissions control

#48
20170205306
2017-07-20

Systems and methods for fuel leak detection

#49
20170167944
2017-06-15

Underwater drain leakage detection apparatus

#50
20170074747
2017-03-16

Leak detector sensor systems using tag-sensitized refrigerants

#51
20170052104
2017-02-23

Determining fluid reservoir connectivity using nanowire probes

#52
20170038006
2017-02-09

High pressure tank, manufacturing method of high pressure tank, and inspection method of sealing characteristic

#53
20170030796
2017-02-02

System and method for detecting leaks in a fluid filled vessel

#54
20170029157
2017-02-02

Delaminatable container, method of checking the same for a pinhole, and method of processing the same

#55
20170023433
2017-01-26

System and method for detecting microscopic leaks

#56
20160341626
2016-11-24

Adaptor for a capless fuel tank filler pipe

#57
20160282218
2016-09-29

Method for examining the leaktightness of a closed housing of an electrical component

#58
20160252421
2016-09-01

Indicator for proving tightness of seals in a packaging consisting of at least partially light permeable thermoplastic film

#59
20160178472
2016-06-23

Leak testing apparatus and method

#60
20160103036
2016-04-14

Method for inspecting sealability of vacuum chamber

#61
20160011071
2016-01-14

Methods and systems for detecting defects in a fuel cell stack

#62
20150355046
2015-12-10

System and method for detecting leaks in a fluid filled vessel

#63
20150260438
2015-09-17

Apparatus for injecting a fluid in a pressurized air conditioning or refrigeration system

#64
20150255832
2015-09-10

Method for manufacturing sealed battery

#65
20150198499
2015-07-16

Method and device for determining gas component inside a transparent container

#66
20150167598
2015-06-18

Rotational pump and fuel vapor leakage detection device having the same

#67
20150107340
2015-04-23

Method for leak testing and leak testing apparatus

#68
20150083918
2015-03-26

Method of detecting a propellant gas

#69
20150054650
2015-02-26

Systems and methods for sensitive open-path gas leak and detection alarm

#70
20150000374
2015-01-01

Process-based approach for the detection of CO2 injectate leakage

#71
20140260548
2014-09-18

System and method for detecting leaks in a fluid filled vessel

#72
20140257721
2014-09-11

Leak verification and detection for vehicle fuel containment systems

#73
20140251831
2014-09-11

Leak detection formula, analyzer and methods of use

#74
20130247651
2013-09-26

Valve-cell vacuum deposition apparatus including a leak detection device and method for detecting a leak in a vacuum deposition apparatus

#75
20130186180
2013-07-25

High speed helium leak detection system and method

#76
20120295364
2012-11-22

Photoluminescent pressure probe

#77
20120227465
2012-09-13

Vacuum quality measurement system

#78
20120048957
2012-03-01

Fluid injecting method and apparatus

#79
20110284742
2011-11-24

DETECTION OF Kr-85 GAMMA RAYS FOR POSITIVE VERIFICATION OF MASS IN PRESSURIZED BOTTLES

#80
20110283769
2011-11-24

Leak detection method

#81
20110197659
2011-08-18

METHOD FOR DETERMINING AN OVERALL LEAKAGE RATE OF A VACUUM SYSTEM AND VACUUM SYSTEM

#82
20110121237
2011-05-26

Hydrogen odorants and odorant selection method

#83
20110048111
2011-03-03

METHOD OF LEAK TESTING AEROSPACE COMPONENTS

#84
20100314975
2010-12-16

GLOVEBOX FOR A DOUBLE WALL CONTAINMENT MODULE

#85
20100313634
2010-12-16

Method and device for tightness testing

#86
20100253376
2010-10-07

Leak detector comprising a position determining system for the hand-operated probe

#87
20100251805
2010-10-07

Method for leak testing and leak testing apparatus

#88
20100233562
2010-09-16

Gas detection system, vehicle, and checkup method for gas detection system

#89
20100154517
2010-06-24

Apparatus and method of detecting microchip hermeticity

#90
20100143040
2010-06-10

Hazardous material storage and leak mitigation system

#91
20090229347
2009-09-17

System for gas permeation testing

#92
20090179177
2009-07-16

Hydrogen odorants and odorant selection method

#93
20090113995
2009-05-07

Method and apparatus for leak detection

#94
20090096618
2009-04-16

Oil leakage detector

#95
20090025457
2009-01-29

METHOD FOR LEAK TESTING AND LEAK TESTING APPARTUS

#96
20080314774
2008-12-25

Glovebox for a double wall containment module

#97
20080307858
2008-12-18

Apparatus and Process for Leak-Testing and Qualification of Fluid Dispensing Vessels

#98
20080276693
2008-11-13

METHOD FOR LEAK TESTING AND LEAK TESTING APPARATUS

#99
20080259324
2008-10-23

Process of using an inspection dye for detecting cracks and flaws in metallic surfaces

#100
20080202213
2008-08-28

System and method for self-verification of safe storage within hermetically sealed containers

#101
20080202211
2008-08-28

Gas Sensor and Method For Operating a Getter Pump

#102
20080194962
2008-08-14

Methods for verifying the integrity of probes for ultrasound imaging systems

#103
20080142754
2008-06-19

1,1,1,2,2,4,5,5,5-NONAFLUORO-4-(TRIFLUOROMETHYL)-3-PENTANONE REFRIGERANT COMPOSITIONS AND USES THEREOF

#104
20080141759
2008-06-19

Method for testing the leakage rate of vacuum encapsulated devices

#105
20080121814
2008-05-29

Laser analytical instrument, laser analytical method, and gas leak inspection instrument

#106
20080092635
2008-04-24

Instrument and method for detecting and reporting the size of leaks in hermetically sealed packaging

#107
20080092633
2008-04-24

Method for detecting the hermetic sealing of enclosed areas

#108
20080060420
2008-03-13

Inspection dye for use in detecting cracks

#109
20080016951
2008-01-24

Method for leak testing and leak testing apparatus

#110
20080000287
2008-01-03

Very high-temperature fluorescent tracer and automation for boiler water applications

#111
20070212792
2007-09-13

Method and apparatus for measuring oxygen concentration

#112
20070212789
2007-09-13

Non-invasive method of determining oxygen concentration in a sealed package

#113
20070157704
2007-07-12

System and method for determining the leakproofness of an object

#114
20070089491
2007-04-26

Method for controlling the sealing of a tank on an aircraft

#115
20070068224
2007-03-29

Leak detection structure and fuel cartridge

#116
20070051921
2007-03-08

Inspection dye for use in detecting cracks

#117
20070018646
2007-01-25

Nmr leak test

#118
20070007244
2007-01-11

DETECTION OF LOSS OF PLASMA CONFINEMENT

#119
20070000310
2007-01-04

Leak detection system with wireless remote unit

#120
20060221877
2006-10-05

Apparatus and method for inspecting containers

#121
20060202155
2006-09-14

1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone refrigerant compositions and uses thereof

#122
20060191325
2006-08-31

Heat conductor with detection element and testing method thereof

#123
20060169026
2006-08-03

Method of measuring gas barrier property of plastic molding

#124
20060154371
2006-07-13

Method for leak testing an environmental enclosure

#125
20060117837
2006-06-08

Process for testing the tightness of containers

#126
20060090546
2006-05-04

Method and apparatus for detecting leaks

#127
20060081036
2006-04-20

Method for leak testing and leak testing apparatus

#128
20050263738
2005-12-01

1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone refrigerant compositions and uses thereof

#129
20050093533
2005-05-05

Leak detection method and micro-machined device assembly

#130
20050081605
2005-04-21

Vacuum leakage detecting device for use in semiconductor manufacturing system

#131
20050079620
2005-04-14

Leak testing of hermetic enclosures for implantable energy storage devices

#132
20050039519
2005-02-24

Method for leak testing and leak testing apparatus

#133
20050025659
2005-02-03

Use of disulfonated anthracenes as inert fluorescent tracers

#134
20050003245
2005-01-06

Method for recognition of a leak in a fuel cell

#135
16179085
2024-04-16

Leak detection formula, analyze and methods of use

#136
15730497
2024-04-09

Composition of matter for identifying the location of a leak site

#137
15178997
2017-12-19

EVAP II—Leak verification and detection for vehicle fuel containment systems

#138
13684004
2016-08-30

Leakage test method for a hermetically sealed disk drive enclosure