Patents-Review.com
ClassID:

168980 ⎘

G01N31/229 - CPC Classification

Classification description:

Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating time/temperature history

Recent Application in this class:
#1
20260085983
2026-03-26

MULTIFUNCTIONAL THERMAL EXPOSURE INDICATOR FOR OBJECTS

 #2
20260002918
2026-01-01

ANTI-FREEZE SOLUTIONS FOR VISUAL INDICATORS OF BIOSPECIMEN TIME-TEMPERATURE EXPOSURE

 #3
20250044266
2025-02-06

METHOD FOR QUANTITATIVELY DETECTING HYDROQUINONE

 #4
20250035600
2025-01-30

A Printing Method for Time Temperature Indicators

 #5
20250009920
2025-01-09

Monitoring System Based on Etching of Metals

 #6
20240418691
2024-12-19

TIME-TEMPERATURE INDICATOR BASED ON INCREASED THERMAL REACTIVITY OF A DIACETYLENE UPON MELT RECRYSTALLIZATION

 #7
20240253387
2024-08-01

ENVIRONMENTAL HISTORY MONITOR WITH SECURITY FEATURES

 #8
20240199300
2024-06-20

INDICATOR FOR PERISHABLE PRODUCTS

 #9
20240077837
2024-03-07

SYSTEMS AND METHODS FOR INDICATING THE TIME ELAPSED SINCE THE OCCURRENCE OF A TRIGGERING EVENT

 #10
20240035901
2024-02-01

Multifunctional Thermal Exposure Indicator

 #11
20230296440
2023-09-21

DETECTING IMPACT AND HEAT EVENTS ON PRODUCTS AND GENERATING A DIAGNOSIS

 #12
20230280216
2023-09-07

Electronic quality indicator

 #13
20230251237
2023-08-10

ACTIVATABLE TEMPERATURE INDICATOR WITH TIME DELAY

 #14
20220412933
2022-12-29

ACTIVATABLE PRINT MEDIUM

 #15
20220390289
2022-12-08

Time-temperature indicator

 #16
20220180307
2022-06-09

Method and system for cold chain quality control and security

 #17
20220080763
2022-03-17

Environmental history monitor with security features

 #18
20220034726
2022-02-03

COLOR ANALYSIS DEVICE, ANALYSIS SYSTEM, QUALITY VISUALIZATION SYSTEM, AND COLOR ANALYZING METHOD

 #19
20210389731
2021-12-16

Systems and methods for indicating the time elapsed since the occurrence of a triggering event

 #20
20210356401
2021-11-18

Detection tool and detection method

 #21
20210333160
2021-10-28

VISUAL INDICATORS OF BIOSPECIMEN TIME-TEMPERATURE EXPOSURE

 #22
20210333159
2021-10-28

Electronic quality indicator

 #23
20210322587
2021-10-21

Monitoring System Based on Etching of Metals

 #24
20210285825
2021-09-16

Time and/or temperature sensitive devices and methods of use thereof

 #25
20210096114
2021-04-01

Thermal history detection label and reagent kit

 #26
20210088494
2021-03-25

Dynamic product lifecycle predictions based on real-time product quality analysis

 #27
20210080331
2021-03-18

Time and/or temperature sensitive devices and methods of use thereof

 #28
20210010873
2021-01-14

Temperature sensing material, and temperature deviation time estimating system employing same

 #29
20200370966
2020-11-26

Electronic quality indicator

 #30
20200340963
2020-10-29

System and Method for Qualitative and Quantitative Detection of Substance on Surfaces

 #31
20200278263
2020-09-03

Temperature detection label and article management device using same

 #32
20200232958
2020-07-23

PACKAGING MATERIAL COMPRISING INDICATOR RESPONDING TO AN EXTERNAL STIMULUS

 #33
20200232927
2020-07-23

SINGLE-USE ANALYSIS BOTTLE AND COLOR RESULTS MATCHING SYSTEM FOR COLORIMETRIC REAGENTS

 #34
20200191758
2020-06-18

DEVICE FOR A PRODUCT TEMPERATURE VARIATION DETECTION BELOW A THRESHOLD VALUE

 #35
20200158705
2020-05-21

Dual-function heat indicator and method of manufacture

 #36
20200124484
2020-04-23

Product identification system and method

 #37
20200043377
2020-02-06

Time temperature indicator label

 #38
20200041359
2020-02-06

Temperature detecting material, temperature detecting ink using same, temperature indicator, and product control system

 #39
20200005237
2020-01-02

Method and system for cold chain quality control and security

 #40
20190359409
2019-11-28

Screw cap system

 #41
20190346415
2019-11-14

Activatable temperature indicator with time delay

 #42
20190257831
2019-08-22

Biosensor for detecting the presence of bacteria

 #43
20190235538
2019-08-01

Method and system for determining product freshness

 #44
20190234806
2019-08-01

Elapsed time temperature indicator and method of activation and use

 #45
20190204280
2019-07-04

Tunable directional color transition compositions and methods of making and using the same

 #46
20190137463
2019-05-09

Indicator device

 #47
20190137462
2019-05-09

Time-temperature indicator based on increased thermal reactivity of a diacetylene upon melt recrystallization

 #48
20190056365
2019-02-21

Time temperature indicator

 #49
20190025268
2019-01-24

Chemical indicator for monitoring hydrogen peroxide sterilization and disinfection processes

 #50
20180372700
2018-12-27

Printable time-temperature indicator system

 #51
20180364176
2018-12-20

Instantaneous and time-lapse fluid-flow contaminant indicator

 #52
20180340922
2018-11-29

Dual-function heat indicator and method of manufacture

 #53
20180321159
2018-11-08

Dual-function heat indicator and method of manufacture

 #54
20180259403
2018-09-13

UV cured indicating devices

 #55
20180217114
2018-08-02

Temperature history indicator

 #56
20180195908
2018-07-12

Electronic quality indicator

 #57
20180164265
2018-06-14

TIME MEASURING DEVICE

 #58
20180104017
2018-04-19

Color sensor with gas generating layer

 #59
20180099802
2018-04-12

Package for indicating heat-seal condition

 #60
20180024011
2018-01-25

Indicating devices based on etching of metals

 #61
20170322163
2017-11-09

Apparatuses, indicators, methods and kits with timed color change indication

 #62
20170261381
2017-09-14

Monitoring system based on etching of metals

 #63
20170252471
2017-09-07

Indicating Devices Based onEtching of Metals

 #64
20170235280
2017-08-17

Time Validation Indicator

 #65
20170131249
2017-05-11

Functional label, having lactobacillus separator membrane and using selective dissolution for detecting external temperature, for checking freshness of storage material

 #66
20170074850
2017-03-16

Film sensor

 #67
20170052160
2017-02-23

Printed gas sensor and digital expiry date thereof

 #68
20170023288
2017-01-26

Refrigerant pack

 #69
20160356749
2016-12-08

Nanoreactors as thermal history indicators

 #70
20160349225
2016-12-01

Dual-function heat indicator and method of manufacture

 #71
20160349224
2016-12-01

Indicating devices based on lateral diffusion of a mobile phase through a non-porous stationary phase

 #72
20160313253
2016-10-27

Dual-function heat indicator and method of manufacture

 #73
20160200930
2016-07-14

Tunable directional color transition compositions and methods of making and using the same

 #74
20160187855
2016-06-30

Time validation indicator

 #75
20160161919
2016-06-09

TIME INDICATING DEVICES BASED ON COUNTERBALANCING REACTIONS

 #76
20160089300
2016-03-31

Timed sequence indicators

 #77
20160069812
2016-03-10

Dual function heat indicator and method of manufacture

 #78
20160062318
2016-03-03

Timer based on chemical sensing

 #79
20160011164
2016-01-14

Smart sticker for use with perishable foods

 #80
20160011157
2016-01-14

Time passage indicator

 #81
20150362466
2015-12-17

Real time indicator for quaternary ammonium compound concentration

 #82
20150346172
2015-12-03

Apparatus with timed color change indication

 #83
20150226715
2015-08-13

Time temperature indicator

 #84
20150153315
2015-06-04

Condition change labels

 #85
20150125574
2015-05-07

Flexible Containers For Use With Short Shelf-Life Products, and Methods For Accelerating Distribution of Flexible Containers

 #86
20150087076
2015-03-26

Apparatuses, indicators, methods and kits with timed color change indication

 #87
20150050196
2015-02-19

Colorimetric indicators for use in medical devices

 #88
20150001123
2015-01-01

Timed sequence indicators

 #89
20140366796
2014-12-18

Time validation indicator

 #90
20140273240
2014-09-18

Method and system for detecting exposure of composites to high-temperature

 #91
20140161684
2014-06-12

Thermal distribution display

 #92
20140127738
2014-05-08

Time-temperature indicator, method for manufacturing the time-temperature indicator, quality guarantee system using the time-temperature indicator, and quality guarantee method using the quality guarantee system

 #93
20140106963
2014-04-17

Tunable directional color transition compositions and methods of making and using the same

 #94
20140098834
2014-04-10

Time-temperature indicator system

 #95
20140023264
2014-01-23

Visual indicator status recognition

 #96
20130292246
2013-11-07

Quality assurance system and method for point-of-care testing

 #97
20130269592
2013-10-17

Apparatus with timed color change indication

 #98
20130243645
2013-09-19

Real time indicator for quaternary ammonium compound concentration

 #99
20130239874
2013-09-19

ROBUST, ULTRAVIOLET-PROTECTED AMBIENT CONDITION HISTORY INDICATOR AND METHOD OF MAKING SAME

 #100
20130227915
2013-09-05

Vacuum packing methods and apparatus for tobacco

 #101
20130224875
2013-08-29

Time-temperature indicating device

 #102
20130105564
2013-05-02

Method and system for determining the condition of a time-temperature indicator

 #103
20130098785
2013-04-25

VACUUM PACKING METHODS AND APPARATUS FOR TOBACCO

 #104
20130040020
2013-02-14

Methods and Compositions for Preparing Consumables with Optical Shifting Properties

 #105
20120330059
2012-12-27

Crystallized diacetylenic indicator compounds and methods of preparing the compounds

 #106
20120305637
2012-12-06

System and method for improved quality management in a product logistic chain

 #107
20120275968
2012-11-01

TEMPERATURE INDICATING COMPOSITIONS

 #108
20120174853
2012-07-12

Temperature Sensing Food Stuff Label

 #109
20120055394
2012-03-08

Timing system and device and method for making the same

 #110
20110280775
2011-11-17

Temperature-sensitive indicator

 #111
20110269242
2011-11-03

TIME TEMPERATURE INDICATOR COMPRISING INDOLENIN BASED SPIROPYRANS

 #112
20110165693
2011-07-07

Duration and Environmental Monitoring Compositions, Devices Methods for Preparation and Systems

 #113
20110157588
2011-06-30

DEVICE COMPRISING TWO REFLECTING LAYERS AND A POLYMER LAYER FOR ANALYZING THE AGE AND/OR QUALITY OF A NATURAL PRODUCT

 #114
20110094514
2011-04-28

Patterned chemical sensor having inert occluding layer

 #115
20110086995
2011-04-14

Co-crystallizable diacetylenic monomer compositions, crystal phases and mixtures, and related methods

 #116
20110084128
2011-04-14

METHOD AND SYSTEM FOR DETERMINING THE CONDITION OF A TIME-TEMPERATURE INDICATOR

 #117
20110059545
2011-03-10

TIME-TEMPERATURE INDICATOR BASED ON OLIGOMERIC SPIROAROMATICS

 #118
20110020859
2011-01-27

DEVICE COMPRISING A COLOURED AND BIODEGRADABLE POLYMER LAYER FOR ANALYZING THE AGE AND/OR QUALITY OF A NATURAL PRODUCT (INTEGRATED FRESHNESS INDICATOR)

 #119
20110008498
2011-01-13

Methods and Compositions for Preparing Consumables with Optical Shifting Properties

 #120
20100296545
2010-11-25

Time temperature indicator

 #121
20100294274
2010-11-25

Filter cartridge having cone of visibility for end-of-service-life-indicator (ESLI)

 #122
20100294273
2010-11-25

Filter cartridge having location-registered view window for end-of-service-life-indicator (ESLI)

 #123
20100279397
2010-11-04

BIOLOGICAL SPECIMEN COLLECTION AND STORAGE DEVICES

 #124
20100275835
2010-11-04

Method for forming an apparatus for indicating the passage of time and the formed apparatus

 #125
20100067024
2010-03-18

Label processor and method relating thereto

 #126
20100043695
2010-02-25

COLOR CHANGING INDICATOR

 #127
20100034961
2010-02-11

PHOTOSTABILIZED TIME TEMPERATURE INDICATOR

 #128
20100029004
2010-02-04

DURATION AND ENVIRONMENTAL MONITORING COMPOSITIONS, DEVICES METHODS FOR PREPARATION AND SYSTEMS

 #129
20100020846
2010-01-28

Irreversible Coolness Indicator

 #130
20090311148
2009-12-17

Heated Volatile Dispensing Device With Use-Up Indicator

 #131
20090311144
2009-12-17

Discoloration indicators for checking life span of desulfurization disorbent, and desulfurization reactor and desulfurization system comprising the same

 #132
20090301382
2009-12-10

Monitoring system based on etching of metals

 #133
20090266291
2009-10-29

Timing system and device and method for making the same

 #134
20090230182
2009-09-17

System and method for improved quality management in a product logistic chain

 #135
20090226948
2009-09-10

Enzyme-based time temperature indicator

 #136
20090149925
2009-06-11

Temperature Indicator for Warming Products

 #137
20090136745
2009-05-28

Method for Producing a Device for Displaying the Effect of the invironment on environmentally-dependent materials

 #138
20090131718
2009-05-21

Crystallized diacetylenic indicator compounds and methods of preparing the compounds

 #139
20090130646
2009-05-21

Blood collection device, method, and system for using the same

 #140
20090119047
2009-05-07

Quality assurance system and method for point-of-care testing

 #141
20090050049
2009-02-26

TIME-TEMPERATURE INDICATORS

 #142
20090016176
2009-01-15

Timing system and device and method for making the same

 #143
20080269050
2008-10-30

Time/temperature indicators

 #144
20080219102
2008-09-11

Method for forming an apparatus for indicating the passage of time and the formed apparatus

 #145
20080187021
2008-08-07

Time-temperature indicating device

 #146
20080167183
2008-07-10

Light absorbing layer for photo-chromic systems

 #147
20080141928
2008-06-19

Useful life indicators

 #148
20080138614
2008-06-12

Apparatus for indicating the passage of time, composition and forming method thereof

 #149
20080070307
2008-03-20

Temperature History Indicator

 #150
20080009067
2008-01-10

Indicating device for temperature sensitive products

 #151
20070218206
2007-09-20

Method of printing a time-temperature indicator based on azo coupling reactions onto a susbtrate

 #152
20070212792
2007-09-13

Method and apparatus for measuring oxygen concentration

 #153
20070212789
2007-09-13

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

 #154
20070183932
2007-08-09

Air treatment devices with use-up indicators

 #155
20070181707
2007-08-09

Heated volatile dispensing device with dye-based use-up indicator

 #156
20070181054
2007-08-09

Heated volatile dispensing device with use-up indicator

 #157
20070172951
2007-07-26

Time-temperature indicator based on valence isomerizations

 #158
20070076779
2007-04-05

METHOD AND SYSTEM FOR DETERMINING THE CONDITION OF A TIME-TEMPERATURE INDICATOR

 #159
20070071680
2007-03-29

Methods and compositions for preparing consumables with optical shifting properties

 #160
20060286211
2006-12-21

Temperature sensing material

 #161
20060247967
2006-11-02

Method of marketing maturing consumable products and products useful therein

 #162
20060130734
2006-06-22

Printed TTI indicators

 #163
20060110835
2006-05-25

Apparatus for indicating the passage of time and method therefor and articles therewith

 #164
20060100303
2006-05-11

Air freshing device

 #165
20050153052
2005-07-14

Food and beverage quality sensor

 #166
20050104043
2005-05-19

Thermochromic polymers for rapid visual assessment of temperature

 #167
20050078557
2005-04-14

Sensor

 #168
20050037498
2005-02-17

Plural intrinsic expiration initiation application indicators

 #169
20050003551
2005-01-06

Reactivity control in substituted diacetylenic monomer shelf life monitoring systems

 #170
15624388
2019-01-01

Tunable directional color transition compositions and methods of making and using the same