B43K5/16 - CPC Classification Index

ClassID:

59416 ⎘

B43K5/16 - CPC Classification

Classification description:

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

Sub-classes:

B43K5/165 » {with detachable means, e.g. caps, co-operating with the writing element} 1
B43K5/17 » with closing means 35

Recent Application in this class:

20250256529

2025-08-14

Card-shaped pen

20250178374

2025-06-05

PEN HAVING A KNIFE SHARPENER

20220339961

2022-10-27

Convertible writing assemblies and components thereof

20210362535

2021-11-25

Writing implement

20200356192

2020-11-12

Electronic pen and electronic pen main body unit

20200094610

2020-03-26

Thermochromic writing tool

20190111726

2019-04-18

Compact writing instrument

20160039243

2016-02-11

Writing utensil

20150317000

2015-11-05

Stylus

#10

20150290963

2015-10-15

Rotating-operation type of writing tool

#11

20150239279

2015-08-27

Rotating-operation type of writing tool

#12

20150043957

2015-02-12

Writing instrument having a movable protective sleeve

#13

20140241783

2014-08-28

Writing implement

#14

20130121744

2013-05-16

Thermochromic writing instrument

#15

20110236120

2011-09-29

Retractable-point writing implement

#16

20110135378

2011-06-09

Travel multiplier mechanisms for writing instruments

#17

20110038659

2011-02-17

Adjustable length pen holder

#18

20100119288

2010-05-13

Retractable instruments comprising a one-piece valve door actuating assembly

#19

20100098476

2010-04-22

Thermochromic writing instrument

#20

20090097906

2009-04-16

Retractable nib writing instrument

#21

20080063462

2008-03-13

MARKING INSTRUMENTS AND METHODS OF MANUFACTURING MARKING INSTRUMENTS

#22

20070020023

2007-01-25

Travel multiplier mechanisms for writing instruments

#23

20050147456

2005-07-07

Advancing/retracting mechanism

#24

18440946

2025-08-12

Card-shaped pen

#25

14532924

2016-09-27

Writing instrument