DIFF Main Group
B43K 29/00 Combinations of writing implements with other articles
Introduced: September 1968
Of 17 combined children, 12 exist in both systems.
5 codes are CPC-only extensions.
4 shared codes have differing titles between IPC and CPC.
Child Classifications
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- B43K 29/05 with applicators for eradicating- or correcting-liquid since 1995 IPC+CPC Available in IPC and CPC
- B43K 29/06 with sharpening devices (with erasing knives B43K29/18; pocket knives with pencils B26B) IPC+CPC Available in IPC and CPC
- B43K 29/18 with hand tools, e.g. erasing knives (with pocket knives B26B) +1 CPC IPC+CPC Available in IPC and CPC
- B43K 29/20 with other articles having storage compartments (with lighters B43K29/16; writing implements functioning as, or combined with, writing implement receptacles B43K31/00) IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B43,2013–2023, worldwide · Source: EPO PATSTAT
- PILOT CORPORATION 1,100
- MITSUBISHI PENCIL COMPANY 818
- SOCIETE BIC FR 380
- MITSUBISHI PENCIL COMPANY JP 371
- PILOT CORPORATION JP 273
- DELI GROUP COMPANY 249
- SHANGHAI M&G STATIONERY 176
- PENTEL 169
- ZEBRA PEN CORPORATION 153
- GUANGZHOU SHIRUI ELECTRICAL TECHNOLOGY COMPANY 124
Top Applicants (CPC)
Class B43,2013–2023, worldwide · Source: EPO PATSTAT
- SOCIETE BIC FR 422
- MITSUBISHI PENCIL COMPANY JP 381
- PILOT CORPORATION JP 299
- MITSUBISHI PENCIL COMPANY 213
- PILOT CORPORATION 100
- WACOM COMPANY JP 89
- STAEDTLER MARS & COMPANY DE 87
- KOTOBUKI JP 82
- CRAYOLA US 78
- SANFORD US 73