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DIFF Subgroup
B43K 8/06

Wick feed from within reservoir to writing-points

Introduced: January 1990

Full Title

Full titles differ between systems:

IPC:

Pens with writing-points other than nibs or balls > with writing-points comprising fibres, felt, or similar porous or capillary material > Arrangements for feeding ink to writing-points > Wick feed from within reservoir to writing-points

CPC:

Pens with writing-points other than nibs or balls (brushes with reservoir for supplying substances A46B11/00) > with writing-points comprising fibres, felt, or similar porous or capillary material (B43K8/22 takes precedence) > Arrangements for feeding ink to writing-points > Wick feed from within reservoir to writing-points

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

IPC defines codes here since 1990.

Child Classifications

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  • B43K 8/08 Wick separate from writing-points since 1990 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