ClassID:

169112

G01N33/381 - CPC Classification

Classification description:

Investigating or analysing materials by specific methods not covered by groups -; Concrete; ceramics; glass; bricks precious stones; pearls

Recent Application in this class:
#1
20240167966
2024-05-23

A METHOD FOR MAPPING AN INTERNAL STRUCTURE OF A SAMPLE

#2
20240167955
2024-05-23

APPARATUS AND METHOD FOR FLUORESCENCE GRADING OF GEMSTONES

#3
20240159683
2024-05-16

Apparatus and method for assessing optical quality of gemstones

#4
20240133822
2024-04-25

Method and System for Determining the Location of Artefacts and/or Inclusions in a Gemstone, Mineral, or Sample Thereof

#5
20240110873
2024-04-04

Luminescence imaging for gemstone screening

#6
20240102951
2024-03-28

PROCESS FOR DETERMINING THE TYPE OF A DIAMOND

#7
20240027335
2024-01-25

GEMSTONE MULTI-TESTER INSTRUMENT WITH REMOVABLE PROBE

#8
20230341331
2023-10-26

Gemstone testing apparatus

#9
20230213447
2023-07-06

Apparatus and method for fluorescence grading of gemstones

#10
20230168238
2023-06-01

IMAGING PROCESS AND SYSTEM

#11
20230084726
2023-03-16

Systems and methods for quantum sensing using solid-state spin ensembles

#12
20230081886
2023-03-16

Systems and methods for quantum sensing with signal amplification by reversible exchange

#13
20220335499
2022-10-20

FACILITATED COMPARISON OF GEMSTONES

#14
20220317069
2022-10-06

METHOD AND SYSTEM FOR CLASSIFICATION OF SAMPLES

#15
20220268718
2022-08-25

Process for determining the type of a diamond

#16
20220178827
2022-06-09

Apparatus and method for fluorescence grading of gemstones

#17
20220163457
2022-05-26

Apparatus and method for assessing optical quality of gemstones

#18
20220163456
2022-05-26

METHOD FOR MARKING AND AUTHENTICATING DIAMONDS AND PRECIOUS STONES

#19
20220155236
2022-05-19

Method and system for grading gemstones

#20
20220146433
2022-05-12

System and method for evaluating and determining color in gemstones

#21
20220120695
2022-04-21

Multi-functional precious stone testing apparatus and method thereof

#22
20220057344
2022-02-24

Detector arrangement, detection system and method of processing data from a detector arrangement for high throughput data handling

#23
20220026371
2022-01-27

Gemstone colour grading process and grading system

#24
20220011290
2022-01-13

Upflow cooling stage for photoluminescence analysis

#25
20210389247
2021-12-16

Luminescence imaging for gemstone screening

#26
20210372935
2021-12-02

Device for inspection and authentication of gemstones and method of using same

#27
20210293729
2021-09-23

Method and system for high speed detection of diamonds

#28
20210270747
2021-09-02

Gemstone testing apparatus

#29
20210148831
2021-05-20

Autonomous Grading of Gemstones

#30
20210131974
2021-05-06

System and method for evaluating and determining color in gemstones

#31
20210116394
2021-04-22

Method and device for grading diamonds using radiofrequency (RF) spectroscopy

#32
20210116379
2021-04-22

Apparatus and method for fluorescence grading of gemstones

#33
20210041369
2021-02-11

Method and system for determining the location of artefacts and/or inclusions in a gemstone, mineral, or sample thereof

#34
20210035178
2021-02-04

Facilitated comparison of gemstones

#35
20210003510
2021-01-07

Identifying and grading diamonds

#36
20200400646
2020-12-24

Gemstone testing apparatus

#37
20200371042
2020-11-26

Method for analysing a gemstone

#38
20200371041
2020-11-26

GEMSTONE TESTING APPARATUS

#39
20200355618
2020-11-12

Gemstone verification

#40
20200249176
2020-08-06

UV reflection tester

#41
20200173931
2020-06-04

Method and system for detecting a diamond signature

#42
20200121040
2020-04-23

Fabricating diffractive structures on gemstones for high optical performance

#43
20200110040
2020-04-09

Multi-functional precious stone testing apparatus and method thereof

#44
20200096453
2020-03-26

Apparatus and method for assessing optical quality of gemstones

#45
20200094289
2020-03-26

Gemstone sorting

#46
20200064267
2020-02-27

Apparatus and method for fluorescence grading of gemstones

#47
20190376946
2019-12-12

Upflow cooling stage for photoluminescence analysis

#48
20190317023
2019-10-17

Method and system for detecting a diamond signature

#49
20190271664
2019-09-05

Block made of a building material

#50
20190251347
2019-08-15

OBJECT CHARACTERIZATION AND AUTHENTICATION

#51
20190187063
2019-06-20

Method for marking and authenticating diamonds and precious stones

#52
20190137406
2019-05-09

Multi-functional precious stone testing apparatus and method thereof

#53
20190137399
2019-05-09

Apparatus and method for fluorescence grading of gemstones

#54
20190120812
2019-04-25

Multi-functional precious stone testing apparatus and method thereof

#55
20190056330
2019-02-21

Gemstone handling and analysis system

#56
20190037980
2019-02-07

Managing optical characteristics of gemstones with diffractive structures

#57
20170370855
2017-12-28

Apparatus and method for assessing optical quality of gemstones

#58
20170343493
2017-11-30

Method of generating a fingerprint for a gemstone using x-ray imaging

#59
20170261486
2017-09-14

Pearl grading method

#60
20170234805
2017-08-17

MOBILE GEMSTONE IDENTIFICATION

#61
20170146487
2017-05-25

Block made of a building material

#62
20170089880
2017-03-30

Magnifying device for jewelry and system for use of same

#63
20160363576
2016-12-15

Multi-functional precious stone testing apparatus and method thereof

#64
20160290930
2016-10-06

Apparatus and method for assessing optical quality of gemstones

#65
20160290925
2016-10-06

Apparatus and method for fluorescence grading of gemstones

#66
20160203495
2016-07-14

Method and system for certification and verification of gemstones

#67
20160161420
2016-06-09

Multi-functional precious stone testing apparatus and method thereof

#68
20160109374
2016-04-21

Examination method for distinguishing between natural diamond and synthetic CVD/HPHT diamonds

#69
20160103938
2016-04-14

DIAMOND PROCESSING

#70
20160103078
2016-04-14

Gemstone sparkle analysis

#71
20160041106
2016-02-11

Gemstone viewer

#72
20160027166
2016-01-28

Methods and systems of imaging cut stones

#73
20160003795
2016-01-07

Gem tester

#74
20150355159
2015-12-10

MEASURING APPARATUS, KIT, AND METHOD OF USING SAME

#75
20150091593
2015-04-02

Multi-functional precious stone testing apparatus and method thereof

#76
20140337035
2014-11-13

Gem tester

#77
20140292358
2014-10-02

Gem tester

#78
20140119613
2014-05-01

Automatic gemstone orientation

#79
20140107986
2014-04-17

Method and system for improved optical modeling of gemstones

#80
20130016210
2013-01-17

Gemstone sparkle analysis

#81
20120268728
2012-10-25

GEM POSITIONING AND ANALYSIS SYSTEM

#82
20120059619
2012-03-08

Precious stone testing apparatus

#83
20120050526
2012-03-01

Method for non-destructive judgment of pearl quality

#84
20120049836
2012-03-01

Gem tester

#85
20120007971
2012-01-12

Methods and systems of imaging cut stones

#86
20120007619
2012-01-12

Multi-functional precious stone testing apparatus and method thereof

#87
20110310246
2011-12-22

Modified apparatus and method for assessment, evaluation and grading of gemstones

#88
20110228063
2011-09-22

Gemstone viewer

#89
20100250201
2010-09-30

Method and system for improved optical modeling of gemstones

#90
20100060633
2010-03-11

Methods and systems for performing differential radiography

#91
20090182520
2009-07-16

ASSESSMENT OF DIAMOND COLOR

#92
20090180100
2009-07-16

Engraved gemstone viewer

#93
20080225266
2008-09-18

GEMSTONE VIEWING METHODS AND APPARATUS

#94
20080055582
2008-03-06

Apparatus for generating data for determining a property of a gemstone and methods and computer programs for determining a property of a gemstone

#95
20070132983
2007-06-14

Apparatus for generating data for determining a property of a gemstone

#96
20070109529
2007-05-17

Engraved gemstone viewer

#97
20060232764
2006-10-19

Method and system for prediction the color of gemstones

#98
20050141588
2005-06-30

Method and apparatus for assessing the integrity of a jewellery setting

#99
20050103840
2005-05-19

Anti-fraud apparatus and method for protecting valuables

#100
20050068047
2005-03-31

Method and device for distinguishing gem stones

#101
20050036132
2005-02-17

Apparatus for generating data for determining a property of a gemstone and methods and computer programs for determining a property of a gemstone

#102
20050016301
2005-01-27

Apparatus for measuring the weight of small items