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PCE
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DIFF Subgroup
B43K 7/02

Ink reservoirs; Ink cartridges (B43K7/01 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Ink reservoirs; Ink cartridges

CPC: Ink reservoirs; Ink cartridges (B43K7/01 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Ball-point pens > Ink reservoirs; Ink cartridges

CPC:

Ball-point pens (; multiple-point writing implements B43K27/00) > Ink reservoirs; Ink cartridges (B43K7/01 takes precedence)

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B43K 7/04 Arrangements for filling the reservoirs, e.g. arrangements at the ball-point ends IPC+CPC Available in IPC and CPC
  • B43K 7/06 Reservoirs with ink-level inspection means IPC+CPC Available in IPC and CPC
  • B43K 7/08 Preventing leakage 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