CPC Main Group
B41J 29/00 Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
21 direct subcodes
Child Classifications
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- B41J 29/02 Framework
- B41J 29/04 Means for attaching machines to baseboards
- B41J 29/06 Special supports, platforms or trolleys for supporting machines on tables
- B41J 29/08 Sound-deadening, or shock-absorbing stands, supports, cases or pads separate from machines
- B41J 29/10 Sound-deadening devices embodied in machines
- B41J 29/12 Guards, shields or dust excluders
- B41J 29/14 Attachments operated by the leg, e.g. the foot, the knee
- B41J 29/15 Script supports connected to the typewriter or printer
- B41J 29/16 Auxiliary receptacles for articles, e.g. erasers, pencils
- B41J 29/17 Cleaning arrangements
- B41J 29/18 Mechanisms for rendering the print visible to the operator
- B41J 29/20 Arrangements of counting devices
- B41J 29/26 Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling
- B41J 29/377 Cooling or ventilating arrangements
- B41J 29/38 Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J 29/40 Means for printing fixed, i.e. unchanging, matter in addition to selectable matter
- B41J 29/42 Scales and indicators, e.g. for determining side margins
- B41J 29/46 Applications of alarms, e.g. responsive to approach of end of line
- B41J 29/50 Side-stop mechanisms
- B41J 29/52 Top-and-bottom stop mechanisms
Top Applicants
Top 10 applicants by patent filingsfor class B41, 2013–2023, worldwide · Source: EPO PATSTAT
- SEIKO EPSON CORPORATION 8,446
- SEIKO EPSON CORPORATION JP 8,438
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,828
- CANON JP 5,419
- CANON 4,156
- BROTHER INDUSTRIES JP 3,763
- BROTHER INDUSTRIES 2,779
- RICOH COMPANY JP 2,717
- FUJIFILM JP 2,423
- RICOH COMPANY 1,739