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DIFF Main Group
B43K 23/00

Holders or connectors for writing implements; Means for protecting the writing-points

Introduced: September 1968

Of 8 combined children, 7 exist in both systems.

1 codes are CPC-only extensions.

5 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B43K 23/004 Holders specially adapted for assisting handicapped or disabled persons to write (B43L15/00 takes precedence) since 1995 IPC+CPC Available in IPC and CPC
  • B43K 23/008 Holders comprising finger grips (B43K23/004, B43K23/012 take precedence) since 1995 IPC+CPC Available in IPC and CPC
  • B43K 23/012 Holders for attachment to finger tips (B43K23/004 takes precedence) since 1995 IPC+CPC Available in IPC and CPC
  • B43K 23/016 Holders for crayons or chalks (B43K23/004 - B43K23/012, B43K23/02 take precedence) since 1995 IPC+CPC Available in IPC and CPC
  • B43K 23/06 Means for connecting two or more writing implements since 1995 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B43,2013–2023, worldwide · Source: EPO PATSTAT

  1. PILOT CORPORATION 1,100
  2. MITSUBISHI PENCIL COMPANY 818
  3. SOCIETE BIC FR 380
  4. MITSUBISHI PENCIL COMPANY JP 371
  5. PILOT CORPORATION JP 273
  6. DELI GROUP COMPANY 249
  7. SHANGHAI M&G STATIONERY 176
  8. PENTEL 169
  9. ZEBRA PEN CORPORATION 153
  10. GUANGZHOU SHIRUI ELECTRICAL TECHNOLOGY COMPANY 124

Top Applicants (CPC)

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