B41L APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES (printing presses or machines for industrial purposes B41F; stamps, stamping or numbering devices B41K)
Description
B41L covers mechanical and electromechanical devices designed for high-volume office and commercial printing, copying, and document processing tasks. This includes manifolding machines (producing multiple copies through pressure transfer), duplicating equipment (such as spirit duplicators and mimeographs), and addressing machines that print repetitive text or variable data on envelopes and labels. The classification encompasses both standalone machines and integrated systems used in commercial print shops, corporate offices, and postal operations, but excludes general printing presses (B41F) and letterpress/relief printing machinery (B41K).
25 direct subcodes
Child Classifications
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- B41L 1/00 Devices for performing operations in connection with manifolding by means of pressure-sensitive layers or intermediaries, e.g. carbons; Accessories for manifolding purposes
- B41L 11/00 Apparatus for directly duplicating from hectographic masters in mirror image, i.e. "wet duplicators" for producing positive copies
- B41L 13/00 Stencilling apparatus for office or other commercial use (screen printing B41F15/00; stencils, stencil materials, carriers therefor B41N1/24)
- B41L 15/00 Letterpress printing apparatus specially adapted for office or other commercial purposes (in general B41F; printing plates or foils, materials theref or B41N1/00)
- B41L 17/00 Lithographic printing apparatus for office or other commercial purposes (in general B41F; printing plates or foils, materials therefor B41N1/00)
- B41L 19/00 Duplicating or printing apparatus or machines for office or other commercial purposes, of special types or for particular purposes and not otherwise provided for (addressographs B41L45/00)
- B41L 21/00 Devices for conveying sheets or webs of copy material through the apparatus or machines for manifolding, duplicating, or printing (mechanisms for conveying copy material through addressographs or like series-printing machines B41L47/24; )
- B41L 23/00 Devices for treating the surfaces of sheets, webs, or other articles in connection with printing (as a final step in the manufacture of such articles, see the relevant places, e.g. B29C71/00, D21H23/00 or D21H25/00; after-treatment of prints B41M7/00)
- B41L 25/00 Devices for damping printing surfaces, e.g. moistening printing surfaces in connection with lithographic printing (applying liquids or other fluent materials to surfaces in general B05)
- B41L 27/00 Inking arrangements or devices (inking units for stencilling apparatus B41L13/18; applying liquids or other fluent materials to surfaces, in general B05)
- B41L 29/00 Devices for attaching printing elements or formes to supports
- B41L 3/00 Platens or like sheet supports for manifolding using pressure-sensitive layers or intermediaries, e.g. for book-keeping purposes
- B41L 31/00 Devices for removing flexible printing formes from forme cylinders
- B41L 33/00 Pressing flexible printing formes or sheets or webs of copy material against cylinders, e.g. for smoothing purposes
- B41L 35/00 Cylinders for apparatus or machines for manifolding, duplicating, or printing for office or other commercial purposes
- B41L 38/00 Devices for attaching coverings or make-ready devices; Guiding devices for coverings (make-ready devices B41N6/00; blankets or like coverings B41N10/00)
- B41L 39/00 Indicating, counting, warning, control, or safety devices (ink-level control devices B41L27/04; such devices in general, see relevant subclasses, e.g. counting in general G06M)
- B41L 41/00 Cleaning arrangements or devices
- B41L 43/00 Auxiliary folding, collecting, or depositing of sheets or webs (in general B65H)
- B41L 45/00 Kinds or types of addressing machines or of like series-printing machines
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