Skip to content

Patent Classification Explorer PCE

Search Classifications

Search for IPC and CPC classification codes or keywords

C
C09
C09D
C09D 11/00
C09D 11/16
C09D 11/17

CPC Subgroup

C09D 11/17

characterised by colouring agents

Full Title

Inks > Writing inks > characterised by colouring agents

CPC C09D 11/17

IPC Equivalent: C09D 11/17

Data: WIPO (IPC), EPO/USPTO (CPC) — CC BY 4.0

Imprint Privacy mtc.berlin depa.tech patscenar.io

© 2026 mtc.berlin