ClassID:

59151

B42D25/391 - CPC Classification

Classification description:

Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof; Identification or security features, e.g. for preventing forgery comprising special materials; Special inks absorbing or reflecting polarised light

Recent Application in this class:
#1
20240149604
2024-05-09

SECURITY DEVICES AND METHODS OF PRODUCING THEM

#2
20230356541
2023-11-09

Optical Structure Having a Relief Effect

#3
20230226840
2023-07-20

COMPOSITE SECURITY ELEMENT

#4
20230185008
2023-06-15

Mechanized Process For Improved Removal Of Elements Such As Labels From An Adhesive Film During Manufacture

#5
20220289988
2022-09-15

Pigment composition, identification medium, and authenticity determination method

#6
20220275213
2022-09-01

Pigment composition, identification medium, and method for determining authenticity

#7
20220137277
2022-05-05

Multi-axis polarizer film for anti-counterfeit applications and method of making the same

#8
20210402466
2021-12-30

Compositions, comprising silver nanoplatelets

#9
20210347196
2021-11-11

Method for producing a decorative element and use of the decorative element

#10
20210300105
2021-09-30

Identification medium, authenticity determination method, and article

#11
20210198576
2021-07-01

IDENTIFICATION MEDIUM, AND METHOD FOR DETERMINING AUTHENTICITY OF IDENTIFICATION MEDIUM

#12
20210166586
2021-06-03

Systems, methods, and articles of manufacture for time-dependent color-changing article

#13
20210103084
2021-04-08

Multi-Axis Polarizer Film For Anti-Counterfeit Applications And Method Of Making The Same

#14
20210086544
2021-03-25

REFLECTIVE SECURITY ELEMENT

#15
20210039421
2021-02-11

Optical marking device

#16
20200372839
2020-11-26

Systems, methods, and articles of manufacture for time-dependent color-changing article

#17
20200264358
2020-08-20

Viewer for determination of authenticity

#18
20200215842
2020-07-09

FORGERY PREVENTION STRUCTURE, FORGERY PREVENTION MEDIUM, AND METHOD FOR INSPECTING FORGERY PREVENTION STRUCTURE

#19
20200189309
2020-06-18

Encoding method and decoding method using metal nanostructures

#20
20190184724
2019-06-20

METHOD AND APPARATUS FOR CHAOSMETRIC BRAND PROTECTION WITH FLUORESCENT TAGGANT

#21
20190135021
2019-05-09

Anti-counterfeiting medium and method for fabricating anti-counterfeiting medium

#22
20190070888
2019-03-07

METHOD AND DEVICE FOR DOCUMENT SECURITY BY GENERATING MULTIPLE REFLECTIVE AND TRANSMISSIVE LATENT IMAGES

#23
20180272789
2018-09-27

Multiple hidden image security device

#24
20180222242
2018-08-09

Anti-counterfeit medium, method for manufacturing the same and method for preventing counterfeiting

#25
20180215187
2018-08-02

Security devices

#26
20180201045
2018-07-19

Method and device for document security by generating multiple reflective and transmissive latent images

#27
20180134065
2018-05-17

Security element

#28
20180120491
2018-05-03

Encrypted optical security device

#29
20180093520
2018-04-05

Optical security device

#30
20170239974
2017-08-24

Optical identification system

#31
20170080742
2017-03-23

In line manufacturing of documents with security elements

#32
20170001461
2017-01-05

Anti-counterfeiting medium and method for fabricating anti-counterfeiting medium

#33
20160334649
2016-11-17

Mask processing using films with spatially selective birefringence reduction

#34
20160237622
2016-08-18

Coloring forgery prevention structure and coloring forgery prevention medium

#35
20160170219
2016-06-16

Optically variable areal pattern

#36
20160170113
2016-06-16

Multilayer optical films having side-by-side polarizer/polarizer zones

#37
20160052327
2016-02-25

Anti-counterfeit medium, method for manufacturing the same and method for preventing counterfeiting

#38
20150301255
2015-10-22

Mask processing using films with spatially selective birefringence reduction

#39
20150192719
2015-07-09

Multilayer optical films suitable for bi-level internal patterning

#40
20150185160
2015-07-02

Capsule or cork comprising security features

#41
20150146292
2015-05-28

Multilayer optical films having side-by-side mirror/polarizer zones

#42
20140340626
2014-11-20

Optical element

#43
20140339298
2014-11-20

Security laminate

#44
20140308491
2014-10-16

Internally patterned multilayer optical films using spatially selective birefringence reduction

#45
20140265295
2014-09-18

Flexible hinge material comprising cross-linked polyurethane material

#46
20140103633
2014-04-17

Optical security device and system and fabrication methods thereof

#47
20140037868
2014-02-06

Data carrier with see-through window and method for producing it

#48
20140022493
2014-01-23

Identification medium

#49
20130169677
2013-07-04

Method of authenticating and/or identifying a security article

#50
20130163818
2013-06-27

Method for the authentication and/or identification of a security item

#51
20130094088
2013-04-18

Diffuse reflective optical films with spatially selective birefringence reduction

#52
20130094085
2013-04-18

Retarder film combinations with spatially selective birefringence reduction

#53
20130094084
2013-04-18

Mask processing using films with spatially selective birefringence reduction

#54
20120328852
2012-12-27

Substrate with a modified liquid crystal polymer marking

#55
20120308072
2012-12-06

PRINTED DEVICE WITH THREE-DIMENSIONAL APPEARANCE

#56
20120262767
2012-10-18

Identification medium and method for identification thereof

#57
20120236292
2012-09-20

Identification medium and identification method therefor

#58
20120182443
2012-07-19

Parallax effect security element

#59
20120008207
2012-01-12

Light polarizer

#60
20120007351
2012-01-12

COUNTERFEITING PREVENTION DEVICE HAVING PRINTING AND BIREFRINGENCE PATTERN

#61
20110286095
2011-11-24

Multilayer optical films having side-by-side polarizer/polarizer zones

#62
20110255167
2011-10-20

Multilayer optical films suitable for bi-level internal patterning

#63
20110255163
2011-10-20

Internally patterned multilayer optical films using spatially selective birefringence reduction

#64
20110249334
2011-10-13

Internally patterned multilayer optical films with multiple birefringent layers

#65
20110249332
2011-10-13

Multilayer optical films having side-by-side mirror/polarizer zones

#66
20110234953
2011-09-29

Patterned birefringent product

#67
20110109078
2011-05-12

Security element

#68
20110096395
2011-04-28

Color shifting multilayer polymer fibers and security articles containing color shifting multilayer polymer fibers

#69
20110007374
2011-01-13

Security element and method for producing the same

#70
20100308570
2010-12-09

Security element and method for the production thereof

#71
20100302486
2010-12-02

Discrimination medium and production method therefor

#72
20100194092
2010-08-05

Discrimination medium and discrimination method for discriminating the same

#73
20100151159
2010-06-17

Method for producing iridescent solid nanocrystalline cellulose films incorporating patterns

#74
20100123943
2010-05-20

Multilayer reflector, authentication card, bar code label, authentication system, and authentication region forming system

#75
20100119738
2010-05-13

FOIL FOR PREVENTING FORGERY

#76
20100118256
2010-05-13

Optical element

#77
20100103335
2010-04-29

POLARIZATION SELECTIVE SCATTERING SECURITY DEVICE AND METHOD FOR MANUFACTURING THE SAME

#78
20100047488
2010-02-25

Data carrier with see-through window and method for producing it

#79
20100026450
2010-02-04

Identification medium, identification method, and identification apparatus

#80
20090310195
2009-12-17

Medium for preventing forgery

#81
20090291272
2009-11-26

Birefringent pattern builder and laminated structure material for preventing forgery

#82
20090128772
2009-05-21

Discrimination medium comprising a liquid crystal layer acting as a half-wave plate wherein a gradation of gradual or continuous color changes are displayed according to an area

#83
20090122412
2009-05-14

Image presentation and micro-optic security system

#84
20090102605
2009-04-23

Security Arrangement for Security Documents

#85
20080282322
2008-11-13

Authentication medium, authenticable substrate, authentication medium label, authentication medium transfer sheet, authenticable sheet, and authenticable information recording medium

#86
20080259455
2008-10-23

Nano-structured zero-order diffractive filter

#87
20080169639
2008-07-17

Security Document Comprising A Light Source And Light-Processing Device

#88
20080166528
2008-07-10

Method and Apparatus for Manufacturing an Optical Component

#89
20080143926
2008-06-19

Process of producing patterned birefringent product

#90
20080138543
2008-06-12

Identification Medium, Article Equipped With Identification Medium, Identifying Method And Device

#91
20080106725
2008-05-08

Security element

#92
20080098488
2008-04-24

Optical element

#93
20080088923
2008-04-17

Light polarizer

#94
20080054621
2008-03-06

Security element and method for producing the same

#95
20070272757
2007-11-29

Multimedia book

#96
20070246688
2007-10-25

Microstructuring of Mesogens Using Contact Printing

#97
20070229928
2007-10-04

Security element and process for producing the same

#98
20070216518
2007-09-20

Security element and method for producing same

#99
20070165182
2007-07-19

Sheeting and methods for the production thereof

#100
20070159671
2007-07-12

Discrimination medium and discrimination method using the same

#101
20070081144
2007-04-12

Discrimination medium and discrimination method for discriminating the same

#102
20070077404
2007-04-05

Discrimination medium and article to be discriminated

#103
20070058260
2007-03-15

Image presentation and micro-optic security system

#104
20070037290
2007-02-15

Discrimination medium, discrimination method, article to be discriminated, and discrimination apparatus

#105
20070035833
2007-02-15

Optical component

#106
20060232734
2006-10-19

Element for protection against forgery or copying containing a structured retarder and a polarizer layer

#107
20060124741
2006-06-15

Method and device for checking authenticity of a security element

#108
20060114388
2006-06-01

Polarising liquid crystal device for security documents

#109
20060023132
2006-02-02

Security element

#110
20050030626
2005-02-10

Security element with diffraction structures