Skip to content

Patent Classification Explorer PCE

Search Classifications

Search for IPC and CPC classification codes or keywords

C
C01
C01B
C01B 2210/00
C01B 2210/0043
C01B 2210/0067

CPC Subgroup Additional Only

C01B 2210/0067

Hydrogen cyanide

Full Title

Purification or separation of specific gases > Impurity removed > Hydrogen cyanide

CPC C01B 2210/0067

No direct equivalent in IPC

21 CPC-only subgroups

C01B 2210/0065 C01B 2210/0068

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

Imprint Privacy mtc.berlin depa.tech patscenar.io

© 2026 mtc.berlin