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  • All sections
  • B - Performing operationstransporting
  • B42D - Booksbook coversloose leavesprinted matter characterised by identification or security featuresprinted matter of special format or style not otherwise provided fordevices for use therewith and not otherwise provided formovable-strip writing or reading apparatus
  • B42D 25/328 - Diffraction gratingsHolograms

Patent holdings for IPC class B42D 25/328

Total number of patents in this class: 1136

10-year publication summary

85
142
137
108
103
94
87
56
59
49
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Toppan Printing Co., Ltd.
2122
161
Giesecke+Devrient Currency Technology GmbH
921
95
De La Rue International Limited
386
70
OVD Kinegram AG
198
64
Dai Nippon Printing Co., Ltd.
4150
58
LEONHARD KURZ Stiftung & Co. KG
392
32
Hueck FOLIEN Ges.m.b.H.
148
31
Surys
97
31
Zhongchao Special Security Technology Co., Ltd.
81
26
China Banknote Printing and Minting Corporation
107
23
Bundesdruckerei GmbH
999
21
Wavefront Technology, Inc.
49
20
BASF SE
21137
13
Covestro Deutschland AG
2794
13
CCL Secure Pty Ltd
92
13
Crane & Co., Inc.
127
12
Visual Physics, LLC
51
12
Giesecke+Devrient Mobile Security GmbH
494
12
Toppan Inc.
761
12
Illinois Tool Works Inc.
11590
10
Other owners 407

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