DIFF Main Group
B42F 21/00 Indexing means; Indexing tabs or protectors therefor
Introduced: September 1968
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
Child Classifications
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- B42F 21/02 Tabs integral with sheets, papers, cards, or suspension files +1 CPC IPC+CPC Available in IPC and CPC
- B42F 21/04 Tabs permanently fastened to sheets, papers, cards, or suspension files +1 CPC IPC+CPC Available in IPC and CPC
- B42F 21/06 Tabs detachably mounted on sheets, papers, cards, or suspension files +1 CPC IPC+CPC Available in IPC and CPC
- B42F 21/12 Sheets, papers, or cards having edges cut away to facilitate indexing, e.g. thumb cuts on books IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B42,2013–2023, worldwide · Source: EPO PATSTAT
- GIESECKE+DEVRIENT CURRENCY TECHNOLOGY DE 898
- BUNDESDRUCKEREI DE 865
- DE LA RUE INTERNATIONAL GB 810
- SICPA HOLDING CH 784
- DNP (DAINIPPON PRINTING COMPANY) 634
- TOPPAN PRINTING COMPANY 486
- TOPPAN PRINTING COMPANY JP 411
- G&D (GIESECKE & DEVRIENT) DE 398
- CCL SECURE AU 334
- NATIONAL PRINTING BUREAU 313
Top Applicants (CPC)
Class B42,2013–2023, worldwide · Source: EPO PATSTAT
- SICPA HOLDING CH 1,317
- GIESECKE+DEVRIENT CURRENCY TECHNOLOGY DE 949
- BUNDESDRUCKEREI DE 881
- DE LA RUE INTERNATIONAL GB 870
- TOPPAN PRINTING COMPANY JP 455
- G&D (GIESECKE & DEVRIENT) DE 421
- CCL SECURE AU 343
- OVD KINEGRAM CH 308
- OBERTHUR FIDUCIAIRE FR 251
- CRANE COMPANY US 204