Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
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

Navigate with arrow keys, Enter to open

  • B43K 29/001 CPC only CPC only
  • B43K 29/002 CPC only CPC only
  • B43K 29/003 CPC only CPC only
  • B43K 29/004 CPC only CPC only
  • B43K 29/005 CPC only CPC only
  • B43K 29/007 with advertising means since 1995 IPC+CPC Available in IPC and CPC
  • B43K 29/013 with stamping means since 1995 IPC+CPC Available in IPC and CPC
  • B43K 29/02 with rubbers IPC+CPC Available in IPC and CPC
  • B43K 29/04 with blotters IPC+CPC Available in IPC and CPC
  • 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 29/10 with illuminating devices IPC+CPC Available in IPC and CPC
  • B43K 29/12 with memorandum appliances (with book covers B42D) IPC+CPC Available in IPC and CPC
  • B43K 29/16 with lighters 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

  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