DIFF Subgroup
B43K 29/18 with hand tools, e.g. erasing knives (with pocket knives B26B)
Introduced: September 1968
Title
Titles differ between systems:
IPC: with hand tools, e.g. erasing knives
CPC: with hand tools, e.g. erasing knives (with pocket knives B26B)
Full Title
Full titles differ between systems:
IPC:
Combinations of writing implements with other articles > with hand tools, e.g. erasing knives
CPC:
Combinations of writing implements with other articles > with hand tools, e.g. erasing knives (with pocket knives B26B)
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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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