ClassID:

59406

B43K5/02 - CPC Classification

Classification description:

Pens with ink reservoirs in holders, e.g. fountain-pens Ink reservoirs

Sub-classes:
Recent Application in this class:
#1
20260124850
2026-05-07

WRITING IMPLEMENTS

#2
20250303778
2025-10-02

SHARP TYPE PAINT MARKER PEN

#3
20250196526
2025-06-19

DEVICE AND METHOD FOR REMOVING A LIQUID FROM A CONTAINER HAVING A DEPRESSIBLE VALVE

#4
20250178374
2025-06-05

PEN HAVING A KNIFE SHARPENER

#5
20240227428
2024-07-11

Biodegradable marker pen

#6
20240042735
2024-02-08

Liquid storage member for coating tools

#7
20230391130
2023-12-07

Output Device for Uniformly Mixed Liquid and Method for Making and Using the Same

#8
20230391129
2023-12-07

Device and method for removing a liquid from a container having a depressible valve

#9
20230311559
2023-10-05

WRITING BOARD SET AND PEEKING PREVENTION SYSTEM

#10
20220355612
2022-11-10

Liquid storage member for coating tools

#11
20220348035
2022-11-03

Refillable free ink writing instrument provided with a removable tip

#12
20220306879
2022-09-29

SCRUB-RESISTANT INK AND METHODS AND APPARATUS FOR FABRICATION AND USE THEREOF

#13
20210379923
2021-12-09

Writing instrument

#14
20210214286
2021-07-15

Heat Reactive Composition and Applicator Apparatus and Method

#15
20210122181
2021-04-29

Nib for writing felt pen

#16
20200392356
2020-12-17

Scrub-resistant ink and methods and apparatus for fabrication and use thereof

#17
20200309195
2020-10-01

Bearing assembly

#18
20200130403
2020-04-30

Applicator

#19
20200122931
2020-04-23

Apparatus for automatically replacing fountain pen refill

#20
20200094789
2020-03-26

REPAIR KIT FOR AUTOMOTIVE COATINGS, AND METHOD FOR REPAIRING AUTOMOTIVE COATINGS USING THE REPAIR KIT

#21
20190248171
2019-08-15

Direct-liquid writing instrument

#22
20190217654
2019-07-18

SELF-ERASING MARKER

#23
20190143739
2019-05-16

Pressure regulating device for writing tool and writing tool having the same

#24
20190047317
2019-02-14

CYLINDRICAL MOLDED ARTICLE

#25
20190047316
2019-02-14

CYLINDRICAL MOLDED ARTICLE AND BARRIER PLUG, BARRIER PLUG-ATTACHED CONTAINER, AND TUBE FOR STORING INK

#26
20180272793
2018-09-27

Marker and stamp system

#27
20180223120
2018-08-09

Thermochromic color-memory composition and thermochromic color-memory microcapsule pigment encapsulating same

#28
20180105329
2018-04-19

ANTI-REVERSAL STRUCTURE OF STATIONERY CONTAINER AND COVER

#29
20170361639
2017-12-21

Writing instrument and electronic pen body section

#30
20160243879
2016-08-25

Modular fountain pens useable with inks of varying viscosities

#31
20150298487
2015-10-22

Fountain pen

#32
20150290962
2015-10-15

APPARATUS AND METHOD FOR ARTISTIC WRITING

#33
20150063894
2015-03-05

Writing instrument having an ink balance mechanism

#34
20130064597
2013-03-14

Writing instrument and ink cartridge unit

#35
20100172689
2010-07-08

Writing implement

#36
20100158600
2010-06-24

Writing instrument containing a granular material in the ink chamber

#37
20100121343
2010-05-13

Scrub-resistant ink and methods and apparatus for fabrication and use thereof

#38
20080138141
2008-06-12

Articulation-loadable writing instrument

#39
20080063462
2008-03-13

MARKING INSTRUMENTS AND METHODS OF MANUFACTURING MARKING INSTRUMENTS

#40
20070053738
2007-03-08

Writing instrument, in particular a roller ball pen comprising an information support

#41
20060210348
2006-09-21

Writing instruments

#42
20060053975
2006-03-16

Color-memorizing photochromic writing instrument, color-memorizing photochromic writing instrument set using the same and method for alternately expressing color-memorizing photochromic function of writing image

#43
16686076
2020-07-28

See-through highlighter

#44
14799366
2018-01-09

Writing instrument with spool valve