ClassID:

103093

C09D11/18 - CPC Classification

Classification description:

Inks; Writing inks specially adapted for ball-point writing instruments

Recent Application in this class:
#1
20260062580
2026-03-05

REVERSIBLY THERMOCHROMIC COMPOSITION, REVERSIBLY THERMOCHROMIC MICROCAPSULE PIGMENT ENCAPSULATING REVERSIBLY THERMOCHROMIC COMPOSITION, AND WRITING INSTRUMENT USING REVERSIBLY THERMOCHROMIC MICROCAPSULE PIGMENT

#2
20260061771
2026-03-05

MULTI-CORE WRITING IMPLEMENT

#3
20260055285
2026-02-26

PLASMONIC INKS WITH VIVID COLORS

#4
20260042921
2026-02-12

INK COMPOSITION AND WRITING INSTRUMENT

#5
20250313709
2025-10-09

HIGH LAYDOWN WRITING TOOL DISPENSING A PIGMENTED NON-AQUEOUS INK

#6
20250282967
2025-09-11

RESIN FORMULATION CONTAINING DYE AND USE THEREOF AS A HIGH PURITY MARKER PEN

#7
20250250449
2025-08-07

NON-NEWTONIAN BALLPOINT PEN INK COMPRISING CELLULOSE NANOFIBERS

#8
20250019554
2025-01-16

WATER-BASED INK COMPRISING PARTICLES AND A LIPOPEPTIDE

#9
20240218187
2024-07-04

METHOD OF PREPARING COATED PIGMENT AND WATER-BASED INK COMPOSITION CONTAINING COATED PIGMENT PREPARED THEREBY

#10
20240218186
2024-07-04

METHOD OF PREPARING COATED PIGMENT AND WATER-BASED INK COMPOSITION CONTAINING COATED PIGMENT PREPARED THEREBY

#11
20240215572
2024-07-04

ANTIMICROBIAL PARTICLE DISPERSION

#12
20240209225
2024-06-27

AQUEOUS INK COMPOSITION FOR WRITING INSTRUMENTS

#13
20240182730
2024-06-06

OIL-BASED BALLPOINT PEN

#14
20240132735
2024-04-25

INK COMPOSITION FOR AQUEOUS BALLPOINT PEN

#15
20240059915
2024-02-22

COLOR-CHANGE INK

#16
20230383175
2023-11-30

REVERSIBLY THERMOCHROMIC COMPOSITION AND REVERSIBLY THERMOCHROMIC MICROCAPSULE PIGMENT ENCAPSULATING THE SAME

#17
20230322010
2023-10-12

Ballpoint pen

#18
20230294446
2023-09-21

OIL-BASED BALLPOINT PEN

#19
20230265312
2023-08-24

WRITING GEL INK

#20
20230167316
2023-06-01

INK COMPOSITION FOR WATER-BASED BALLPOINT PEN

#21
20230159787
2023-05-25

WRITING GEL INK

#22
20230093346
2023-03-23

WRITING GEL INK FOR PENS WITHOUT FOLLOWER

#23
20230073595
2023-03-09

INK COMPOSITION FOR WATER-BASED BALLPOINT PEN

#24
20230072944
2023-03-09

COLORING TABLET AND WATER-BASED INK COMPOSITION FOR WRITING INSTRUMENT USING THE SAME

#25
20230048616
2023-02-16

INK COMPOSITION FOR WATER-BASED BALLPOINT PENS

#26
20220411651
2022-12-29

INK COMPOSITION FOR AQUEOUS BALLPOINT PENS

#27
20220389250
2022-12-08

AQUEOUS INK COMPOSITION FOR WRITING INSTRUMENTS

#28
20220380612
2022-12-01

COMPOSITE COLORED PARTICLE

#29
20220372322
2022-11-24

Reverse photochromic inks including encapsulated reverse photochromic colorants, and associated methods and writing instruments

#30
20220372321
2022-11-24

Reverse photochromic inks, and associated methods and writing instruments

#31
20220363926
2022-11-17

OIL-BASED INK COMPOSITION FOR BALLPOINT PENS AND BALLPOINT PEN EMPLOYING THE SAME

#32
20220363925
2022-11-17

AQUEOUS INK COMPOSITION FOR WRITING INSTRUMENTS

#33
20220259450
2022-08-18

COLOR CHANGING AQUEOUS INK

#34
20220251406
2022-08-11

AQUEOUS INK COMPOSITION FOR REVERSIBLY THERMOCHROMIC WRITING INSTRUMENT, AND REFILL AND AQUEOUS BALLPOINT PEN INCORPORATING AQUEOUS INK COMPOSITION FOR REVERSIBLY THERMOCHROMIC WRITING INSTRUMENT

#35
20220194118
2022-06-23

WATER-BASED BALLPOINT PEN

#36
20220169919
2022-06-02

REVERSIBLY THERMOCHROMIC COMPOSITION, REVERSIBLY THERMOCHROMIC MICROCAPSULE PIGMENT ENCAPSULATING REVERSIBLY THERMOCHROMIC COMPOSITION, AND WRITING INSTRUMENT USING REVERSIBLY THERMOCHROMIC MICROCAPSULE PIGMENT

#37
20220169874
2022-06-02

INK COMPOSITION FOR WATER-BASED BALLPOINT PEN

#38
20220162463
2022-05-26

ERASABLE AQUEOUS INK

#39
20220098423
2022-03-31

Non newtonian ballpoint pen ink comprising cellulose nanofibers

#40
20220049103
2022-02-17

Photochromic composition

#41
20220025197
2022-01-27

Aqueous ink composition for ballpoint pen

#42
20210371686
2021-12-02

AQUEOUS INK COMPOSITION FOR WRITING INSTRUMENTS

#43
20210230440
2021-07-29

Irreversibly erasable ink composition having a discoloration agent

#44
20210222017
2021-07-22

GLITTERING WRITING/DRAWING MATERIAL COMPOSITION AND WRITING/DRAWING INSTRUMENT

#45
20210122936
2021-04-29

Thermochromic pigment compositions

#46
20210108099
2021-04-15

Writing gel ink

#47
20210095144
2021-04-01

Ink composition, writing instrument and method for producing ink composition

#48
20210079244
2021-03-18

Ink composition for writing instrument and writing instrument having the same

#49
20210047529
2021-02-18

Aqueous ink composition for writing instrument

#50
20200248019
2020-08-06

Water-based ink composition for ballpoint pen and water-based ballpoint pen using the same

#51
20200224046
2020-07-16

Ink formulations and associated writing instruments

#52
20200207699
2020-07-02

Thermochromic pigment compositions

#53
20200165473
2020-05-28

Aqueous ink composition for ballpoint pen

#54
20190367755
2019-12-05

Writing ink composition for aqueous ballpoint pen, ballpoint pen employing the same, and process for producing the writing ink composition for aqueous ballpoint pen

#55
20190338151
2019-11-07

Ink composition, writing tool and method for producing ink composition

#56
20190211220
2019-07-11

Aqueous ink composition for writing instruments

#57
20190047318
2019-02-14

Writing instrument for forming thermochromic handwriting

#58
20180127609
2018-05-10

Oil-based ink composition for writing instruments, and writing instrument, marking pen and ballpoint pen comprising the same

#59
20170275484
2017-09-28

AQUEOUS INK COMPOSITION FOR WRITING INSTRUMENTS

#60
20170183521
2017-06-29

Photocrosslinkable writing ink

#61
20170107390
2017-04-20

Conductive ink for a rollerball pen and conductive trace formed on a substrate

#62
20170088737
2017-03-30

Ink composition for reversibly thermochromic stamp and stamp

#63
20170088653
2017-03-30

SURFACTANT COMPRISING FLUORINE-CONTAINING POLYMER

#64
20170058139
2017-03-02

Reversible thermochromic and photochromic ink pens and markers

#65
20170050460
2017-02-23

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

#66
20170002217
2017-01-05

Transitorially erasable ink compositions and writing instruments containing same

#67
20160257830
2016-09-08

BIOPLASMONIC CALLIGRAPHY FOR LABEL-FREE BIODETECTION

#68
20160177114
2016-06-23

Oil-based ball-point pen refill, oil-based ball-point pen, and oil-based ball-point pen ink composition

#69
20160130455
2016-05-12

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

#70
20160068694
2016-03-10

Ink composition for writing instrument and coloring material

#71
20160017163
2016-01-21

Reversible thermochromic and photochromic ink pens and markers

#72
20160017162
2016-01-21

Reversible thermochromic and photochromic ink pens and markers

#73
20150376423
2015-12-31

Water-based ink composition and water-based ballpoint pen

#74
20150298488
2015-10-22

Writing instrument

#75
20150275000
2015-10-01

Ink composition for aqueous ballpoint pen

#76
20150147493
2015-05-28

NIR-inert substrates comprising bis-oxodihydroindolylen-benzodifuranones

#77
20150093176
2015-04-02

Ink composition for aqueous ink ball point pen

#78
20150071698
2015-03-12

Oily ink composition for ballpoint pens

#79
20150040797
2015-02-12

INK COMPOSITION FOR WATER-BASED BALLPOINT PEN

#80
20150023720
2015-01-22

Oil-based ink composition for ball-point pen, and oil-based ball-point pen refill using the same

#81
20140270900
2014-09-18

Roller ball pen for use with metallic inks

#82
20140142222
2014-05-22

SURFACTANT COMPRISING FLUORINE-CONTAINING POLYMER

#83
20140037362
2014-02-06

Irreversible color changing ink compositions

#84
20130340649
2013-12-26

Ink composition for water-based ballpoint pen

#85
20130200307
2013-08-08

W/O-type emulsion ink composition for writing utensil and writing utensil

#86
20130149364
2013-06-13

Water-based pigmented preparation

#87
20130087070
2013-04-11

WATER-BASED INK COMPOSITION FOR BALLPOINT PEN

#88
20120251222
2012-10-04

Ink composition for aqueous ink ball point pen and aqueous ink ball point pen

#89
20120180695
2012-07-19

O/W TYPE EMULSION INK COMPOSITION FOR BALLPOINT PENS

#90
20120070584
2012-03-22

Highlighting ink formulation comprising an anti-smear agent

#91
20120016070
2012-01-19

SURFACTANT COMPRISING FLUORINE-CONTAINING POLYMER

#92
20120014740
2012-01-19

Thermosensitive decolorable ink composition

#93
20110293355
2011-12-01

Ink composition for oil-based ballpoint pen

#94
20110271870
2011-11-10

Ink for ballpoint pens and ballpoint pen using same

#95
20110218282
2011-09-08

Ink composition and a ball point pen comprising the same

#96
20110218277
2011-09-08

PRESSURIZED INK COMPOSITIONS AND A BALL POINT PEN COMPRISING THE SAME

#97
20110097134
2011-04-28

Radiocontrast Highlighter

#98
20110081495
2011-04-07

Composition containing crystalline cellulose composite

#99
20110013967
2011-01-20

Water-based ballpoint pen

#100
20100310300
2010-12-09

Writing implement with thermochromic coloring color-memory composition

#101
20100232865
2010-09-16

Water-based ink composition for ballpoint pens

#102
20100192801
2010-08-05

Phenylpyrazolone colorant

#103
20100186891
2010-07-29

NIR-INERT SUBSTRATES COMPRISING BIS-OXODIHYDROINDOLYLEN-BENZODIFURANONES

#104
20100162921
2010-07-01

Water base dual color ink composition and writing utensil using the same

#105
20100159140
2010-06-24

Red reactive dyes, their preparation and their use

#106
20100135711
2010-06-03

Ink composition for writing tool and writing tool

#107
20100116010
2010-05-13

Aqueous pigment preparations

#108
20100068642
2010-03-18

Universal stir-in pigments

#109
20100054848
2010-03-04

Ink composition for writing instrument and writing instrument

#110
20100040401
2010-02-18

Water based ink compositions for ballpoint pen

#111
20090255439
2009-10-15

Oil-based ink composition for writing utensil and writing utensil employing the same

#112
20090234069
2009-09-17

Oil-based ink composition for writing instruments

#113
20090178213
2009-07-16

Mixtures of reactive dyes and their use

#114
20090129851
2009-05-21

Aqueous gel ballpoint pen and method for the production thereof

#115
20090095202
2009-04-16

Water-based pigment preparation

#116
20090050013
2009-02-26

Thermochromic coloring color-memory composition and thermochromic coloring color-memory microcapsule pigment containing the same

#117
20090030113
2009-01-29

UNIVERSAL PIGMENT PREPARATIONS

#118
20090025602
2009-01-29

Capillary-action, glitter markers and ink compositions for same

#119
20080292385
2008-11-27

Friction body, writing instrument and writing instrument set

#120
20080196622
2008-08-21

Ink compositions containing an emulsion

#121
20080196620
2008-08-21

Permanent ink compositions and writing instruments containing same

#122
20080124559
2008-05-29

Glass flake

#123
20080124164
2008-05-29

Friction body, writing instrument and writing instrument set

#124
20080103234
2008-05-01

Dispersants

#125
20080101849
2008-05-01

Ballpoint pen

#126
20080097058
2008-04-24

Emulsion For Aqueous Inkjet Ink

#127
20080025786
2008-01-31

Security ink

#128
20070292200
2007-12-20

Water-based ballpoint pen

#129
20070243006
2007-10-18

Liquid graphite

#130
20070237569
2007-10-11

Ink backflow preventive for water-based ball-point pens

#131
20070231494
2007-10-04

Writing instruments with eradicable inks and eradicating fluids

#132
20070221090
2007-09-27

Non-Aqueous Polar Ink Composition

#133
20070204761
2007-09-06

Water based ink composition for rollerball pen

#134
20070203259
2007-08-30

Water-based ink composition

#135
20070189836
2007-08-16

Friction body, writing instrument and writing instrument set

#136
20070166558
2007-07-19

Writable and printable colloidal gold solution

#137
20070110507
2007-05-17

Tip unit for liquid applicator, method for producing the same, and liquid applicator having the tip unit

#138
20070070165
2007-03-29

Coating tool

#139
20060260112
2006-11-23

Method of producing applicator tip

#140
20060233595
2006-10-19

Aqueous ink composition

#141
20060213392
2006-09-28

Water-based ink composition and ballpoint pen using the same

#142
20060189710
2006-08-24

Aqueous ink

#143
20060188321
2006-08-24

Coating fluid and fluid applicator

#144
20060185100
2006-08-24

Fibre-reactive azo dyes, their preparation and their use

#145
20060173094
2006-08-03

Water-based ink composition for writing instruments

#146
20060156950
2006-07-20

Ink composition for oil-based ballpoint pen and method for production thereof, and ballpoint pen refill

#147
20060147252
2006-07-06

Liquid graphite pencil

#148
20060117996
2006-06-08

Oil-based ink composition for ballpoint pen using oil-based ink

#149
20060088363
2006-04-27

Water-based ink composition for ballpoint pen and ballpoint pen comprising the same

#150
20060075924
2006-04-13

Refill for correction pen and refill unit

#151
20060069183
2006-03-30

Erasable aqueous color material composition

#152
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

#153
20060047017
2006-03-02

Ink follower

#154
20060032398
2006-02-16

Water-based, resin-free and solvent-free eradicable ball-pen inks

#155
20060013641
2006-01-19

Ink composition for pressurized ball-point pen and pressurized ball-point pen

#156
20050245641
2005-11-03

Erasable ink for a writing implement

#157
20050239920
2005-10-27

Colored microparticle dispersion, water-based ink, and image forming method

#158
20050239919
2005-10-27

Ink for an aqueous ballpoint pen using oil-in-water type resin emulsion and an aqueous ballpoint pen using the ink

#159
20050234150
2005-10-20

Water based pigment ink composition

#160
20050228070
2005-10-13

Oil-based ink composition for ballpoint pen and ball-point pen using oil-based ink

#161
20050214062
2005-09-29

Water-based ink composition for ballpoint pen and water-based ballpoint pen

#162
20050207824
2005-09-22

Oil-base ballpoint ink composition and oily ballpoint pens

#163
20050204956
2005-09-22

Writable and printable colloidal gold solution

#164
20050192379
2005-09-01

Eradicable composition and kit

#165
20050169694
2005-08-04

Ink reservoir for writing instrument

#166
20050166795
2005-08-04

Aqueous ink for ball point pens

#167
20050159505
2005-07-21

Aqueous glittering ink composition

#168
20050158471
2005-07-21

Method of highlighting with a reversible highlighting mixture, highlighting kit, and highlighted complex

#169
20050150423
2005-07-14

Writing instruments with eradicable inks and eradicating fluids

#170
20050148685
2005-07-07

Aqueous glittering color material composition

#171
20050143486
2005-06-30

Erasable ink composition

#172
20050143485
2005-06-30

Water-based ink composition for ball-point pen

#173
20050123341
2005-06-09

Refill for oil-based ink ballpoint pen and oil-based ink ballpoint pen

#174
20050120919
2005-06-09

Highlightable and highlighted mixtures, marking instruments, and methods of using the same

#175
20050120914
2005-06-09

Modified carbon black carbon black dispersion liquid and water base ink

#176
20050113505
2005-05-26

Hollow polymer particles, aqueous dispersion thereof and production process thereof

#177
20050096410
2005-05-05

Ballpoint-pen ink compositions

#178
20050095055
2005-05-05

Capillary-action, glitter markers and ink compositions for same

#179
20050043439
2005-02-24

Water-based ink composition for ballpoint pen

#180
20050043435
2005-02-24

Water-based ink and process for producing water-based ink

#181
20050034629
2005-02-17

Reaction of carbon black with diazonium salts, resultant carbon black products and their uses

#182
20050020728
2005-01-27

Solid pigment composition for pigment ink pigment ink containing the same and process for preparing these

#183
20050019090
2005-01-27

Water-based ballpoint pen

#184
20050011404
2005-01-20

Black eradicable ink, methods of eradication of the same, eradicable ink kit, and eradicated ink complex