CPC Main Group
B42F 21/00 Indexing means; Indexing tabs or protectors therefor
4 direct subcodes
Child Classifications
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- B42F 21/02 Tabs integral with sheets, papers, cards, or suspension files
- B42F 21/04 Tabs permanently fastened to sheets, papers, cards, or suspension files
- B42F 21/06 Tabs detachably mounted on sheets, papers, cards, or suspension files
- B42F 21/12 Sheets, papers, or cards having edges cut away to facilitate indexing, e.g. thumb cuts on books
Top Applicants
Top 10 applicants by patent filingsfor 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