ClassID:

170178

G01N2291/0421 - CPC Classification

Classification description:

Indexing codes associated with group; Wave modes and trajectories; Wave modes Longitudinal waves

Recent Application in this class:
#1
20250231096
2025-07-17

DEVICE FOR MEASURING THE MEDIAN RADIUS OF BUBBLES IN A FOAMED PLASTER BLEND

#2
20250146976
2025-05-08

ULTRASONIC DUAL-WAVE HIGH-RELIABILITY MEASUREMENT METHOD AND APPARATUS FOR BOLT STRESS

#3
20250020457
2025-01-16

APPARATUS FOR MEASURING THIN FILM THICKNESS AND METHOD THEREOF

#4
20240302330
2024-09-12

APPARATUS FOR MEASURING HEIGHT OF FOREIGN SUBSTANCE IN PIPE

#5
20240280424
2024-08-22

Apparatus and Method to Detect Residual Stress Around Cold Expanded Holes Using Longitudinal Critically Refracted Waves

#6
20240230593
2024-07-11

FLUIDIC DEVICE WITH FLUID PORT ORTHOGONAL TO FUNCTIONALIZED ACTIVE REGION

#7
20240060938
2024-02-22

ULTRASONIC INSPECTION DEVICE AND ULTRASONIC INSPECTION UNIT

#8
20230408452
2023-12-21

ACOUSTIC MICROSCOPE SYSTEM AND METHOD FOR MEASURING AN OBJECT DISPOSED IN A MEDIUM

#9
20230349815
2023-11-02

SELF-CLEANING OPTICAL PROBE

#10
20230184114
2023-06-15

Methods and systems for ultrasonic rock bolt condition monitoring

#11
20230127960
2023-04-27

Ultrasonic pulse velocity tester device with threshold error correction

#12
20230118324
2023-04-20

Ultrasonic probe

#13
20230082439
2023-03-16

Acoustic emission inspection system for detecting elastic waves in inspected objects

#14
20230081998
2023-03-16

Stress gradient high-efficiency non-destructive detection system based on frequency domain calculation of broadband swept frequency signals, and detection method thereof

#15
20230036296
2023-02-02

Fluidic device with fluid port orthogonal to functionalized active region

#16
20220099631
2022-03-31

Ultrasonic probe having flexible stabilizing element for probe alignment

#17
20210372971
2021-12-02

Active waveguide excitation and compensation

#18
20210148862
2021-05-20

Method for creating an analysis dataset for an evaluation of an ultrasonic test

#19
20200386715
2020-12-10

Experimental device for studying the propagation characteristics of stress wave in jointed rock mass at high temperature

#20
20200150088
2020-05-14

Fluidic device with fluid port orthogonal to functionalized active region

#21
20190323994
2019-10-24

Transducer assembly

#22
20190227037
2019-07-25

Systems and methods for generating ultrasonic waves, exciting special classes of ultrasonic transducers and ultrasonic devices for engineering measurements

#23
20190203599
2019-07-04

Methods and systems for ultrasonic rock bolt condition monitoring

#24
20190079058
2019-03-14

APPARATUS AND METHOD FOR NON-DESTRUCTIVE TESTING OF MATERIALS

#25
20180328895
2018-11-15

Graphene-based non-destructive inspection device and related method

#26
20180259490
2018-09-13

Method, system, and program for ultrasonic testing and storage medium

#27
20180231499
2018-08-16

Fixed value residual stress test block and manufacturing and preservation method thereof

#28
20180149620
2018-05-31

Ultrasonic inspection apparatus for a spherical body

#29
20180113097
2018-04-26

Corrosion and crack detection for fastener nuts

#30
20180100387
2018-04-12

Downhole electromagnetic acoustic transducer sensors

#31
20180059061
2018-03-01

Methods, systems, and devices for solid axle testing

#32
20170248551
2017-08-31

Inspection of structures

#33
20170168017
2017-06-15

BAW sensor device with peel-resistant wall structure

#34
20170074831
2017-03-16

Focusing wedge for ultrasonic testing

#35
20170074830
2017-03-16

Apparatus and method for non-destructive testing of materials

#36
20170030871
2017-02-02

Active waveguide excitation and compensation

#37
20160363561
2016-12-15

Methods and systems for measuring properties with ultrasound

#38
20160349171
2016-12-01

Systems and methods for testing internal bonds

#39
20160109414
2016-04-21

Ultrasonic non-destructive testing

#40
20160033452
2016-02-04

Fixed value residual stress test block and manufacturing and preservation method thereof

#41
20150346159
2015-12-03

Sensor system for corrosion monitoring

#42
20150330949
2015-11-19

Method for characterising a part made of a composite material

#43
20150300897
2015-10-22

Sensor device and residual stress detection system employing same

#44
20150247823
2015-09-03

Pipeline inspection device and pipeline inspection system

#45
20150212045
2015-07-30

Method and apparatus for non-invasively measuring physical properties of materials in a conduit

#46
20150198565
2015-07-16

Method of characterizing an object including, at least locally, a plane of symmetry

#47
20150122026
2015-05-07

ULTRASONIC MEASURING METHOD AND DEVICE

#48
20150068292
2015-03-12

Method for determining geomechanical parameters of a rock sample

#49
20140352438
2014-12-04

DEVICE FOR ULTRASONIC INSPECTION

#50
20140260633
2014-09-18

Ultrasonic non-destructive testing

#51
20140238150
2014-08-28

Method for evaluating prestressing force of bonded tendon using velocity of stress waves caused by impact

#52
20130192373
2013-08-01

Tension wave generation system

#53
20120240681
2012-09-27

Electromagnetic acoustic transducer (EMAT) combined with piezoelectric transducer (PZT) for dual mode ultrasonic inspection

#54
20120167690
2012-07-05

Ultrasonic probe, ultrasonic testing equipment, and ultrasonic testing method

#55
20120118064
2012-05-17

Ultrasonic testing probe and ultrasonic testing apparatus

#56
20120090389
2012-04-19

Piezoelectric resonator

#57
20120048021
2012-03-01

Laser-based maintenance apparatus for inspecting flaws based on a generated surface wave

#58
20110239769
2011-10-06

Method for investigating a structure for receiving and/or conducting a liquid or soft medium

#59
20110187233
2011-08-04

Nondestructive testing apparatus and method

#60
20110138918
2011-06-16

Method of assessing bolted joint integrity

#61
20110016976
2011-01-27

ULTRASONIC NON-DESTRUCTIVE TESTING

#62
20100275693
2010-11-04

Apparatus for simultaneously measuring longitudinal and shear wave speeds in materials under compression load via an ultrasonic transducer

#63
20100208248
2010-08-19

Laser-based maintenance apparatus using ultrasonic wave detection for flaw analysis and repair

#64
20100199769
2010-08-12

Laser ultrasonic detection device including a laser oscillating device which includes a seed laser oscillating element

#65
20100199768
2010-08-12

Laser-based maintenance apparatus for inspecting flaws

#66
20100164488
2010-07-01

ELECTROMAGNETIC PIEZOELECTRIC ACOUSTIC SENSOR

#67
20100154549
2010-06-24

Laser ultrasonic device

#68
20100058869
2010-03-11

Ultrasonic non-destructive testing

#69
20100005846
2010-01-14

Ultrasonic testing method and manufacturing method of seamless pipe or tube

#70
20090320599
2009-12-31

Method for testing the condition of a drive shaft of a rotary machine

#71
20090301202
2009-12-10

Non-destructive testing, in particular for pipes during manufacture or in the finished state

#72
20090279582
2009-11-12

Temperature sensor and extensometer for electrical power cables

#73
20090279581
2009-11-12

Temperature sensor and extensometer for electrical power cables

#74
20090266165
2009-10-29

Self-calibrating method for measuring the density and velocity of sound from two reflections of ultrasound at a solid-liquid interface

#75
20090217763
2009-09-03

Ultrasonic probe, ultrasonic testing equipment, ultrasonic testing method, and manufacturing method of seamless pipe or tube

#76
20090199642
2009-08-13

Ultrasonic flaw detection apparatus and ultrasonic flaw detection method

#77
20090188320
2009-07-30

Method of and apparatus for testing wooden poles

#78
20090151457
2009-06-18

Ultrasonic testing system and ultrasonic testing technique for pipe member

#79
20090095087
2009-04-16

Ultrasonic probe, ultrasonic flaw detection method, and ultrasonic flaw detection apparatus

#80
20090078046
2009-03-26

Determining average mechanical properties of constituent particles of a sample of material using ultrasound

#81
20090056415
2009-03-05

Method of measuring hydrogen concentration in member and device of measuring hydrogen concentration

#82
20090007678
2009-01-08

Method and apparatus for measuring flaw height in ultrasonic tests

#83
20090000382
2009-01-01

NON-CONTACT ACOUSTO-THERMAL METHOD AND APPARATUS FOR DETECTING INCIPIENT DAMAGE IN MATERIALS

#84
20080289724
2008-11-27

Timber harvesting apparatus

#85
20080247264
2008-10-09

Apparatus and method for moving a liquid by means of a piezoelectric transducer

#86
20080223137
2008-09-18

Method and apparatus for detecting flaws in a railhead

#87
20080216575
2008-09-11

Device for laser-ultrasonic detection of flip chip attachment defects

#88
20080212067
2008-09-04

INSPECTION AND STRENGTH MEASUREMENT OF SOLDER AND STRUCTURAL JOINTS USING LASER GENERATED STRESS WAVES

#89
20080190206
2008-08-14

Device, method and program for inspecting microstructure

#90
20080190205
2008-08-14

Ultrasound phased array devices and methods

#91
20080163688
2008-07-10

Surface plasmon resonance and quartz crystal microbalance sensor

#92
20080156098
2008-07-03

Monolithic antenna excited acoustic transduction device

#93
20080148852
2008-06-26

Acoustic transducer system for nondestructive testing of cement

#94
20080098818
2008-05-01

Apparatus and method for attenuating acoustic waves in pipe walls for clamp-on ultrasonic flow meter

#95
20080047347
2008-02-28

ULTRASONIC STRESS MEASURING APPARATUS

#96
20080022775
2008-01-31

Non-contact thermo-elastic property measurement and imaging system for quantitative nondestructive evaluation of materials

#97
20080009742
2008-01-10

Thermally enhanced ultrasonic probe

#98
20070261495
2007-11-15

Method for checking a weld between two metal pipelines

#99
20070256500
2007-11-08

Substrate penetrating acoustic sensor

#100
20070240512
2007-10-18

Ultrasonic method and apparatus for evaluating spot weld zone

#101
20070157733
2007-07-12

Method and apparatus for non-destructive testing of components of gas turbine engines made of monocrystalline materials

#102
20070157730
2007-07-12

Laser-based maintenance apparatus

#103
20070144261
2007-06-28

Ultrasonic sensor

#104
20070103031
2007-05-10

Ultrasound radiation device into a material

#105
20070101804
2007-05-10

Ultrasonic liquid viscosity sensor using mode conversion

#106
20070095139
2007-05-03

Method and apparatus for non-destructive testing of concrete structures

#107
20070068907
2007-03-29

Ultrasonic system for monitoring a weld operation

#108
20070068253
2007-03-29

Uni-index variable angle phased array probe

#109
20070051486
2007-03-08

Manufacturing method for continuously cast product of steel

#110
20070022815
2007-02-01

Method of inspecting a substrate using ultrasonic waves and apparatus for performing the same

#111
20070006651
2007-01-11

Method and system for determining material properties using ultrasonic attenuation

#112
20070000328
2007-01-04

Ultrasonic method for the accurate measurement of crack height in dissimilar metal welds using phased array

#113
20060260403
2006-11-23

Method for evaluating a weld joint formed during a welding process

#114
20060232842
2006-10-19

System, method and apparatus for direct imaging in ultrasonic holography

#115
20060230833
2006-10-19

Wireless oil filter sensor

#116
20060210100
2006-09-21

Electromagnetic acoustic transducer for generating and measuring bending vibration in rod member using anti-symmetric magnetic field structure

#117
20060201252
2006-09-14

Angle beam shear wave through-transmission ultrasonic testing apparatus and method

#118
20060191358
2006-08-31

Positioning vehicle for positioning a test probe

#119
20060191342
2006-08-31

Method for determining the sound velocity in a basic material, particularly for measuring the thickness of a wall

#120
20060185441
2006-08-24

System for and method of performing evaluation techniques on a log or round timber

#121
20060122506
2006-06-08

Sub-nyquist sampling of acoustic signals in ultrasound imaging

#122
20060107733
2006-05-25

Piezoelectric resonator

#123
20060106550
2006-05-18

Structural health management system and method for enhancing availability and integrity in the structural health management system

#124
20060101918
2006-05-18

Piezotransducer device

#125
20060096357
2006-05-11

Measurement, compensation and control of equivalent shear rate in acoustic wave sensors

#126
20060071668
2006-04-06

3D acoustic imaging using sensor array, longitudinal wave and algebraic reconstruction

#127
20060049721
2006-03-09

Device for ultrasonic inspection

#128
20060048576
2006-03-09

Bearing steel,method for evaluating large-sized inclusions in the steel and rolling bearing

#129
20060027022
2006-02-09

Flexible electromagnetic acoustic transducer sensor

#130
20060027021
2006-02-09

Characterization of materials with optically shaped acoustic waveforms

#131
20060021438
2006-02-02

Laser-ultrasonic detection of flip chip attachment defects

#132
20060009948
2006-01-12

Method and apparatus for inspecting parts with high frequency linear array

#133
20060000281
2006-01-05

Method and apparatus for assessing or predicting characteristics of wood or other wooden materials

#134
20050262926
2005-12-01

Method and apparatus for determination of medical diagnostics utilizing biological fluids

#135
20050241397
2005-11-03

Method of ultrasonically inspecting airfoils

#136
20050241373
2005-11-03

Method and apparatus for determination of food quality and authenticity

#137
20050234319
2005-10-20

Laser photo-thermo-acoustic (PTA) frequency swept heterodyned lock-in depth profilometry imaging system

#138
20050231735
2005-10-20

System and method to enable eye-safe laser ultrasound detection

#139
20050223807
2005-10-13

Method for ultrasonic control of weld joints

#140
20050215902
2005-09-29

System and technique for characterizing fluids using ultrasonic diffraction grating spectroscopy

#141
20050209791
2005-09-22

Manufacturing process or in service defects acoustic imaging using sensor array

#142
20050186328
2005-08-25

Method of measuring the adhesion of a coating to a substrate

#143
20050183505
2005-08-25

Ultrasonic flaw detecting method and ultrasonic flaw detector

#144
20050161190
2005-07-28

Manufacturing method for continuously cast product of steel

#145
20050160819
2005-07-28

Method and apparatus for evaluation of standing timber

#146
20050156364
2005-07-21

Ultrasound sensor for non-destructive control of metallurgical products

#147
20050149277
2005-07-07

Fluid measurement

#148
20050139006
2005-06-30

Method for detection of defects in anisotropic materials

#149
20050132784
2005-06-23

Measurement, compensation and control of equivalent shear rate in acoustic wave sensors

#150
20050120803
2005-06-09

Laser system and method for non-destructive bond detection and evaluation

#151
20050072235
2005-04-07

Ultrasonic characterization of polymeric containers

#152
20050068041
2005-03-31

Evaluation of damage to structures under test using ultrasound

#153
20050011263
2005-01-20

Method and apparatus for assessing or predicting characteristics of wood or other wooden materials

#154
17471195
2022-03-22

Rock brittleness analysis method and system based on mineral content and distribution and device

#155
13414092
2015-10-06

Acoustic emission sensor array