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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
B41J 1/46

Types or dies fixed on wheel, drum, cylinder, or like carriers

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies > with types or dies mounted on carriers rotatable for selection > the plane of the type or die face being parallel to the axis of rotation, e.g. with type on the periphery of cylindrical carriers > Carriers stationary for impression > Types or dies fixed on wheel, drum, cylinder, or like carriers

CPC:

Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies > with types or dies mounted on carriers rotatable for selection > the plane of the type or die face being parallel to the axis of rotation, e.g. with type on the periphery of cylindrical carriers (B41J1/60 takes precedence) > Carriers stationary for impression > Types or dies fixed on wheel, drum, cylinder, or like carriers

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B41J 1/48 with a plurality of carriers, one for each character space IPC+CPC Available in IPC and CPC
  • B41J 1/50 with one or more carriers travelling across copy material in letter-space direction IPC+CPC Available in IPC and CPC
  • B41J 1/52 with copy material moving in the letter-space direction, and the carrier mounting being fixed relative to the machine IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B41,2013–2023, worldwide · Source: EPO PATSTAT

  1. SEIKO EPSON CORPORATION 14,672
  2. CANON 14,153
  3. RICOH COMPANY 8,049
  4. SEIKO EPSON CORPORATION JP 8,044
  5. HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,312
  6. BROTHER INDUSTRIES 6,887
  7. KYOCERA DOCUMENT SOLUTIONS 5,463
  8. CANON JP 5,001
  9. KONICA MINOLTA CORPORATION 4,512
  10. BROTHER INDUSTRIES JP 3,681

Top Applicants (CPC)

Class B41,2013–2023, worldwide · Source: EPO PATSTAT

  1. SEIKO EPSON CORPORATION 8,446
  2. SEIKO EPSON CORPORATION JP 8,438
  3. HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,828
  4. CANON JP 5,419
  5. CANON 4,156
  6. BROTHER INDUSTRIES JP 3,763
  7. BROTHER INDUSTRIES 2,779
  8. RICOH COMPANY JP 2,717
  9. FUJIFILM JP 2,423
  10. RICOH COMPANY 1,739