ClassID:

127015

D21H21/44 - CPC Classification

Classification description:

Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper; Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods

Sub-classes:
Recent Application in this class:
#1
20230151551
2023-05-18

Multi-layer printing substrate with hidden information

#2
20230101526
2023-03-30

Optically variable security devices

#3
20220195293
2022-06-23

Multi-luminescent security element and value or security product containing said security element

#4
20210324584
2021-10-21

Methods for verifying the authenticity of products

#5
20200199820
2020-06-25

Method of marking cellulosic products

#6
20200190743
2020-06-18

SHEET MANUFACTURING APPARATUS, RECORDING SHEET, AND SHEET MANUFACTURING METHOD

#7
20180223480
2018-08-09

Water-induced anti-counterfeiting paper and preparation method thereof

#8
20170292206
2017-10-12

Method of marking cellulosic products

#9
20170121910
2017-05-04

Security sheet or document having one or more enhanced watermarks

#10
20170015130
2017-01-19

Method of forming a security document

#11
20160140573
2016-05-19

Anti-counterfeit signature

#12
20160089923
2016-03-31

Method and device for the secure protection of an official document and official document thus protected

#13
20160089920
2016-03-31

Thermochromic ink composition

#14
20160075165
2016-03-17

Security element comprising an interference pigment and a nanometric filler

#15
20160059611
2016-03-03

Security element comprising a masking structure containing a mixture of nanometric fillers

#16
20160053169
2016-02-25

Multi-luminescent security element and value or security product containing said security element

#17
20150376841
2015-12-31

Substrate for security papers and method of manufacturing the same

#18
20150329996
2015-11-19

Security yarn containing multi-component spinning fiber and security product using the same

#19
20150314629
2015-11-05

Optically variable security threads and stripes

#20
20150152602
2015-06-04

Security sheet or document having one or more enhanced watermarks

#21
20130004684
2013-01-03

Method for manufacturing a marking and corresponding product

#22
20120276363
2012-11-01

Sheet with pulp fiber tangled around a magnetic material with spaced coatings

#23
20120138692
2012-06-07

Paper

#24
20120103545
2012-05-03

LASER-MARKABLE SUBSTRATE, AND ASSOCIATED MANUFACTURING METHOD

#25
20120075701
2012-03-29

OPTICALLY VARIABLE SECURITY DEVICES

#26
20120068451
2012-03-22

Method for securing a coloured opaque object

#27
20110214828
2011-09-08

PROCESS FOR MAKING A SECURITY DOCUMENT

#28
20110209328
2011-09-01

Micro-optic security and image presentation system presenting a synthetically magnified image that appears to lie above a given plane

#29
20110019283
2011-01-27

Tamper indicating optical security device

#30
20100321248
2010-12-23

Fibrous substrate for insert including an antenna

#31
20100308571
2010-12-09

Optical system demonstrating improved resistance to optically degrading external effects

#32
20100167082
2010-07-01

PAPER FOR PREVENTING OUTFLOW OF DOCUMENT AND METHOD FOR MANUFACTURING THEREOF

#33
20100084851
2010-04-08

SECURITY ELEMENT

#34
20100032935
2010-02-11

Authenticity mark in the form of a luminescent substance

#35
20100002303
2010-01-07

Sheet having a tactile effect and an interferential effect and security document comprising the same

#36
20100001508
2010-01-07

Security document

#37
20090322071
2009-12-31

Security element

#38
20090186205
2009-07-23

MATERIAL IN SHEET FORM HAVING A WINDOW, ITS MANUFACTURING METHOD AND SECURITY DOCUMENT COMPRISING IT

#39
20090155571
2009-06-18

Method of building a sensor structure

#40
20090047488
2009-02-19

Counterfeit prevention paper and manufacturing method thereof

#41
20090021840
2009-01-22

Micro-optic security and image presentation system presenting a synthetically magnified image that appears to transform into another image

#42
20080212193
2008-09-04

Micro-optic security and image presentation system presenting a synthetically magnified image that appears to lie below a given plane

#43
20080212192
2008-09-04

Micro-optic security and image presentation system

#44
20080165423
2008-07-10

Micro-optic security and image presentation system presenting a synthetically magnified image that appears to lie above a given plane

#45
20080160226
2008-07-03

Security element and method for the production thereof

#46
20080143095
2008-06-19

Substrates Incorporating Security Devices

#47
20080129036
2008-06-05

Thread and method of manufacturing the same, counterfeit preventive paper using thread, counterfeit preventive printed material, and method of judging authenticity utilizing them

#48
20080088895
2008-04-17

Article With Micro Indicia Security Enhancement

#49
20080041542
2008-02-21

Cellulose composites comprising hydrophobic particles and their use in paper products

#50
20080036196
2008-02-14

Micro-optic security and image presentation system for a security device

#51
20080030020
2008-02-07

Security document and/or a document of value

#52
20070296204
2007-12-27

Vacuum Roll Coated Security Thin Film Interference Products With Overt And/Or Covert Patterned Layers

#53
20070275189
2007-11-29

Vacuum Roll Coated Security Thin Film Interference Products With Overt And/Or Covert Patterned Layers

#54
20070273147
2007-11-29

Vacuum Roll Coated Security Thin Film Interference Products With Overt And/Or Covert Patterned Layers

#55
20070273144
2007-11-29

Vacuum roll coated security thin film interference products with overt and/or covert patterned layers

#56
20070206249
2007-09-06

Security devices incorporating optically variable adhesive

#57
20070195392
2007-08-23

Adhesive Chromagram And Method Of Forming Thereof

#58
20070138295
2007-06-21

Method for authenticating an item

#59
20070134453
2007-06-14

Cardboard and a method of manufacture thereof

#60
20070029785
2007-02-08

Security paper, particularly for labels

#61
20060055169
2006-03-16

Strip shaped safeguarding element

#62
20060023879
2006-02-02

Object identifying medium using multi-layer thin-film

#63
20050180020
2005-08-18

Micro-optic security and image presentation system

#64
20050142342
2005-06-30

Multilayer body with a laser-sensitive layer

#65
20050042449
2005-02-24

Vacuum roll coated security thin film interference products with overt and/or covert patterned layers