IPC Classification

Class code (prefix) Descriptions Number of results
B43K 1/00 Nibs; Writing- points
B43K 1/01 Nibs; Writing- points with ink reservoirs, e.g. funnel-shaped
B43K 1/02 Split nibs
B43K 1/04 Split nibs with broadened tips
B43K 1/06 Tubular writing-points
B43K 1/08 Nibs; Writing- points with ball points; Balls or ball beds
B43K 1/10 Wire nibs
B43K 1/12 Writing-points comprising fibres; Felt pads
B43K 3/00 Nib holders
B43K 3/02 Nib holders with ink guards
B43K 3/04 Nib holders with retractable nibs
B43K 5/00 Pens with ink reservoirs in holders, e.g. fountain-pens
B43K 5/02 Ink reservoirs
B43K 5/03 Ink reservoirs specially adapted for concentrated ink, e.g. solid ink
B43K 5/04 Ink reservoirs flexible
B43K 5/06 Ink reservoirs with movable pistons
B43K 5/08 Ink reservoirs with movable pistons with ink-supplying valves
B43K 5/10 Ink reservoirs with reserve ink chambers
B43K 5/12 Ink reservoirs with ink-level inspection means
B43K 5/14 Exchangeable ink cartridges
B43K 5/16 Pens with ink reservoirs in holders, e.g. fountain-pens with retractable nibs
B43K 5/17 Pens with ink reservoirs in holders, e.g. fountain-pens with retractable nibs with closing means
B43K 5/18 Arrangements for feeding the ink to the nibs
B43K 7/00 Ball-point pens
B43K 7/01 Ball-point pens for low viscosity liquid ink
B43K 7/02 Ink reservoirs; Ink cartridges
B43K 7/03 Ink reservoirs; Ink cartridges pressurised, e.g. by gas
B43K 7/04 Arrangements for refilling the reservoirs, e.g. arrangements at the ball-point ends
B43K 7/06 Reservoirs with ink-level inspection means
B43K 7/08 Preventing leakage
B43K 7/10 Arrangements for feeding the ink to the ball points
B43K 7/12 Ball-point pens with retractable ball points
B43K 7/035 Ink reservoirs; Ink cartridges pressurised, e.g. by gas the gas acting on a piston
B43K 8/00 Pens with writing-points other than nibs or balls
B43K 8/02 Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material
B43K 8/03 Ink reservoirs; Ink cartridges
B43K 8/04 Arrangements for feeding ink to writing-points
B43K 8/06 Wick feed from within reservoir to writing-points
B43K 8/08 Wick separate from writing-points
B43K 8/10 Arrangements for feeding ink to writing-points including compartment for soluble solid material
B43K 8/12 Arrangements for feeding ink to writing-points writing-points or writing-point units being separable from reservoir
B43K 8/14 Pens with writing-points other than nibs or balls with coreless tubular writing-points
B43K 8/16 Pens with writing-points other than nibs or balls with tubular writing-points comprising a movable cleaning element
B43K 8/18 Arrangements for feeding the ink to the writing-points
B43K 8/20 Pens with writing-points other than nibs or balls with roller writing-points
B43K 8/22 Pens with writing-points other than nibs or balls with electrically or magnetically activated writing-points
B43K 8/24 Pens with writing-points other than nibs or balls characterised by the means for retracting writing-points
B43K 11/00 Filling devices
B43K 13/00 Devices for removing nibs; Devices for cleaning nibs, e.g. by wiping
B43K 13/02 Devices for removing nibs; Devices for cleaning nibs, e.g. by wiping for cleaning nibs, e.g. ink reservoirs therein
B43K 15/00 Assembling, finishing, or repairing pens
B43K 15/02 Automatic machines
B43K 17/00 Continuously-adjustable nibs, e.g. for drawing-pens; Holders therefor
B43K 17/01 Nibs with ink reservoirs
B43K 17/02 Nibs having more than two legs
B43K 17/04 Holders with arrangements for drawing dotted lines
B43K 19/00 Non-propelling pencils; Styles; Crayons; Chalks
B43K 19/02 Pencils with graphite; Coloured pencils
B43K 19/04 Pencils with metallic writing-core
B43K 19/06 Pencils with metallic writing-core the writing-core being made from substance wearing off during use
B43K 19/08 Pencils with metallic writing-core the writing-core being made from wear-resistant substances
B43K 19/10 Pencils with metallic writing-core the writing-core being made from wear-resistant substances equipped with ball point
B43K 19/12 Slate pencils
B43K 19/14 Sheathings
B43K 19/16 Making non-propelling pencils
B43K 19/18 Making pencil writing-cores
B43K 21/00 Propelling pencils
B43K 21/02 Writing-core feeding mechanisms
B43K 21/04 Writing-core feeding mechanisms with the writing-cores brought into position by gravity
B43K 21/06 Writing-core feeding mechanisms with the writing-cores fed by means sliding in longitudinally-slotted casings
B43K 21/08 Writing-core feeding mechanisms with the writing-cores fed by screws
B43K 21/10 Writing-core feeding mechanisms with the writing-cores fed by screws with separate writing-core remnants ejecting-bar
B43K 21/12 Writing-core feeding mechanisms with the writing-cores fed by screws with means preventing overwinding
B43K 21/14 Writing-core feeding mechanisms with the writing-cores fed by screws with writing-cores automatically replaced from magazines
B43K 21/16 Writing-core feeding mechanisms with stepwise feed of writing-cores
B43K 21/18 Writing-core feeding mechanisms with stepwise feed of writing-cores having ratchet means
B43K 21/20 Writing-core feeding mechanisms with stepwise feed of writing-cores with writing-cores automatically replaced from magazines
B43K 21/22 Writing-cores gripping means, e.g. chucks
B43K 21/24 Assembling, finishing, or repairing propelling pencils
B43K 21/26 Automatic machines
B43K 21/027 Writing-core feeding mechanisms with sliding tube-like writing-core guide
B43K 21/033 Writing-core feeding mechanisms with sliding tube-like writing-core guide with automatic feed by pressure during use of pencil
B43K 23/00 Holders or connectors for writing implements; Means for protecting the writing-points
B43K 23/02 Holders or connectors for writing implements; Means for protecting the writing-points with means for preventing rolling
B43K 23/04 Holders or connectors for writing implements; Means for protecting the writing-points with means for preventing rolling enabling the writing implement to be set upright
B43K 23/06 Means for connecting two or more writing implements
B43K 23/08 Protecting means, e.g. caps
B43K 23/10 Protecting means, e.g. caps for pencils
B43K 23/12 Protecting means, e.g. caps for pens
B43K 23/016 Holders for crayons or chalks
B43K 24/00 Mechanisms for selecting, projecting, retracting or locking writing units
B43K 24/02 Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
B43K 24/03 Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by flicking or tilting
B43K 24/04 Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by means sliding in longitudinally-slotted casings
B43K 24/06 Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by turning means
B43K 24/08 Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
B43K 24/10 Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units
B43K 24/12 Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units operated by means sliding in longitudinally-slotted casings
B43K 24/14 Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units operated by turning means
B43K 24/16 Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units operated by push-buttons
B43K 24/18 Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units and for feeding the writing cores
B43K 25/00 Attaching writing implements to wearing apparel or objects involving constructional changes of the implements
B43K 25/02 Clips
B43K 27/00 Multiple-point writing implements, e.g. multicolour; Combinations of writing implements
B43K 27/02 Combinations of pens and pencils
B43K 27/04 Combinations of pencils
B43K 27/08 Combinations of pens
B43K 27/12 Combinations of pens of ball-point pens
B43K 29/00 Combinations of writing implements with other articles
B43K 29/02 Combinations of writing implements with other articles with rubbers
B43K 29/04 Combinations of writing implements with other articles with blotters
B43K 29/05 Combinations of writing implements with other articles with applicators for eradicating- or correcting-liquid
B43K 29/06 Combinations of writing implements with other articles with sharpening devices
B43K 29/007 Combinations of writing implements with other articles with advertising means
B43K 29/08 Combinations of writing implements with other articles with measuring, computing or indicating devices
B43K 29/10 Combinations of writing implements with other articles with illuminating devices
B43K 29/12 Combinations of writing implements with other articles with memorandum appliances
B43K 29/013 Combinations of writing implements with other articles with stamping means
B43K 29/16 Combinations of writing implements with other articles with lighters
B43K 29/18 Combinations of writing implements with other articles with hand tools, e.g. erasing knives
B43K 29/20 Combinations of writing implements with other articles with other articles having storage compartments
B43K 29/087 Combinations of writing implements with other articles with measuring, computing or indicating devices for indicating time, e.g. with calendars or watches
B43K 29/093 Combinations of writing implements with other articles with measuring, computing or indicating devices with calculators
B43K 31/00 Writing implement receptacles functioning as, or combined with, writing implements