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IPC Main Group
B41J 3/00

Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
Subclass:
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS

15 direct subcodes

Child Classifications

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  • B41J 3/01 for special character, e.g. for Chinese characters or barcodes
  • B41J 3/24 for perforating or stencil cutting using special types or dies
  • B41J 3/26 for stenographic writing
  • B41J 3/28 for printing downwardly on flat surfaces, e.g. of books, drawings, boxes
  • B41J 3/3 for printing with large type, e.g. on bulletins, tickets
  • B41J 3/32 for printing in Braille or with keyboards specially adapted for use by blind or disabled persons
  • B41J 3/34 for printing musical scores
  • B41J 3/42 Two or more complete typewriters coupled for simultaneous operation
  • B41J 3/54 with two or more sets of type or printing elements
  • B41J 3/6 for printing on both faces of the printing material
  • B41J 3/62 for printing on two or more separate sheets or strips of printing material

Top Applicants

Top 10 applicants by patent filingsfor 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