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PCE
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CPC Subgroup
B43L 23/08

in which the pencils or leads are sharpened mainly by rotational movement against cutting blades (B43L23/02 takes precedence)

Full Title

Sharpeners for pencils or leads (grinding or cutting tools in general B24; B26; combined with writing implements B43K29/06) > in which the pencils or leads are sharpened mainly by rotational movement against cutting blades (B43L23/02 takes precedence)

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Child Classifications

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Top Applicants

Top 10 applicants by patent filingsfor class B43, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SOCIETE BIC FR 422
  2. MITSUBISHI PENCIL COMPANY JP 381
  3. PILOT CORPORATION JP 299
  4. MITSUBISHI PENCIL COMPANY 213
  5. PILOT CORPORATION 100
  6. WACOM COMPANY JP 89
  7. STAEDTLER MARS & COMPANY DE 87
  8. KOTOBUKI JP 82
  9. CRAYOLA US 78
  10. SANFORD US 73