CPC Subgroup
B43L 23/02 with gearing
Full Title
Sharpeners for pencils or leads (grinding or cutting tools in general B24; B26; combined with writing implements B43K29/06) > with gearing
1 direct subcode
Child Classifications
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- B43L 23/04 with cranked handles
Top Applicants
Top 10 applicants by patent filingsfor 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